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CRT 2007 January-June Object Archive

for objects discovered in the first half of 2007 that have appeared on the CRT page
but now have no impact solutions or are no longer under active observation





a=amateur discovery   c=on CRT page   k=large object (diam.>=1km.)   r=has impact solutions   s=small object (H>22.0)


2007 ML24

Current assessment:  NO impact solutions

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-M47

Notes:  2007 ML24 was discovered by the Mt. Lemmon Survey on 21 June 2007 and was observed again the next day and on the 24th. The discovery was announced on June 27th, which is when JPL posted it as an impact risk. NEODyS posted it on June 28th and on Aug. 4th revised its risk assessment based on the existing data.

This object wasn't reported observed after June 24th until the DOU MPEC of 9 Aug. 2007, which carried observations by David Tholen's team on Mauna Kea from July 26th. And the same day, Aug. 9th, all impact solutions were removed. Until this happened, the matter of 2007 ML24 had been left hanging with a three-day observing arc and impact solutions as early as four years away, in 2011.

Packed designation:  K07M24L


2007 MB24

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  718 meters (JPL 28 June 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-M43

Notes:  2007 MB24 was discovered by LINEAR on 24 June 2007 and announced two days later, which is when JPL posted it with impact solutions. NEODyS posted it on June 27th.

Update: NEODyS and JPL removed 2007 MB24 as an impact risk on July 1st.

Packed designation:  K07M24B


2007 LS

Current assessment:  NO impact solutions

Diameter:  860 meters (JPL 16 June 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-L38

Notes:  2007 LS was discovered with the Spacewatch 0.9m telescope on 8 June 2007 and announced three days later, which is when JPL posted it as an impact risk. NEODyS posted it on June 12th, and both risk monitors removed it on June 18th.

Packed designation:  K07L00S


2007 LQ19

Current assessments:  NO impact solutions

Diameter:  900 meters (JPL 25 June 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-M01

Notes:  2007 LQ19 was discovered on 13 June 2007 by the Siding Spring Survey, which alone confirmed it. The discovery was announced early on June 16th and that day this object was posted by NEODyS and JPL as an impact risk. NEODyS removed it as a risk on June 25th and then reposted it with a 2082 impact solution.

For those new to impact risk monitoring, it is important to understand that impact solutions are not predictions but rather possibilities from variant orbit calculations that cannot be elminated yet based on the available data. In the case of 2007 LQ19, which appeared in early risk assessments to be dangerous for the near term, all but one set of far-off impact solutions were removed only nine days after the first solutions were posted. And those last solutions were removed on July 15th after this object was next reported observed (by Tiki Observatory).

Packed designation:  K07L19Q


2007 LL

Current assessment:  NO impact solutions

Diameter:  370 meters (JPL 9 June 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-L33

Notes:  2007 LL was discovered by the Catalina Sky Survey on 8 June 2007 and announced the same day. JPL posted it with impact solutions and later removed them on June 9th.

Packed designation:  K07L00L


2007 LD

Current assessment:  NO impact solutions

Diameter:  354 meters (JPL 8 June 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-L22

Notes:  2007 LD was discovered by LINEAR on 7 June 2007 and announced the same day. It was posted by JPL and NEODyS as an impact risk on the 8th and removed by them the next day.

Packed designation:  K07L00D


2007 LB15

Current assessment:  NO impact solutions

Diameter:  620 meters (JPL 21 June 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-L52

Notes:  2007 LB15 was discovered by the Catalina Sky Survey on 13 June 2007 and was announced the next day, which is when JPL and NEODyS posted it as an impact risk. Their first highly preliminary risk assessments started off each with an impact solution in June of next year, but these and many other solutions were dropped as soon as the next observations became available. Following a week of observation, 2007 LB15 was removed as an impact risk by NEODyS on June 21st and by JPL on June 22nd.

Packed designation:  K07L15B


2007 LA15

Current assessment:  NO impact solutions

Diameter:  500 meters (JPL 15 June 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-L51

Notes:  2007 LA15 was discovered on 13 June 2007 by the Catalina Sky Survey and announced the next day, which is when NEODyS posted it as an impact risk. NEODyS removed it on June 15th, and JPL posted it on the 15th and removed it on the 16th.

Packed designation:  K07L15A


2007 LA

Current assessment:  NO impact solutions

Diameter:  210 meters (JPL 7 June 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-L19

Notes:  2007 LA was discovered by the Catalina Sky Survey on 6 June 2007 and announced the next day, which is when JPL posted impact solutions that were removed a day later.

Packed designation:  K07L00A


2007 KV2

Current assessment:  NO impact solutions

Diameter:  38 meters (JPL 24 May 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-K35

Notes:  2007 KV2 was discovered on 21 May 2007 by the Catalina Sky Survey and announced two days later. JPL posted it as an impact risk on May23rd and removed it on the 25th.

Packed designation:  K07K02V


2007 KO4

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  75 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-K49

Notes:  2007 KO4 was discovered on 22 May 2007 and confirmed alone by the Mt. Lemmon Survey. It was announced on May 25th, which is when JPL posted it with impact solutions. NEODyS posted it on May 26th.

2007 KO4 was calculated to go out of view for most NEO observers around June 10th.

Packed designation:  K07K04O

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

Years

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2015-2107292-4.21-4.4603.0074.0e-060.075

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2015-208063-4.44-4.6303.007
26 May 07

2007 KE4

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  31 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-K44

Notes:  2007 KE4 was discovered by the Catalina Sky Survey on 24 May 2007 and announced the same day. It was posted by JPL as an impact risk that day and by NEODyS on May 25th.

2007 KE4 was calculated to go out of view for most NEO observers around June 7th.

Packed designation:  K07K04E

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

Years

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2026-2096  4-4.50-4.5301.6092.3e-050.031

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2029-20291-4.57-4.5701.609
26 May 07

2007 JZ20

Current assessment:  NO impact solutions

Diameter:  830 meters (JPL 18 May 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-J51

Notes:  2007 JZ20 was discovered by LINEAR on 11 May 2007 and was announced late the next day. NEODyS listed it with impact solutions on May 13th, JPL posted it on May 16th, and both risk monitors removed it on May 19th.

Packed designation:  K07J20Z


2007 JY2

Current assessment:  NO impact solutions

Diameter:  145 meters (16 May 2007 estimate from standard formula)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-J33

Notes:  2007 JY2 was discovered on May 9th by the Mt. Lemmon Survey and announced the next day, which is when JPL posted it with impact solutions. NEODyS posted it on May 11th and removed it on May 15th, and JPL removed it on May 16th.

Packed designation:  K07J02Y


2007 JF16

Current assessment:  NO impact solutions

Diameter:  675 meters (18 May 2007 estimate from standard formula)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-J49

Notes:  2007 JF16 was discovered by the Mt. Lemmon Survey on 10 May 2007 and announced two days later. It was posted as an impact risk on May 13th by NEODyS, which removed it on May 18th. JPL posted it on May 16th and removed it the next day.

Packed designation:  K07J16F


2007 JB21

Current assessment:  NO impact solutions

Diameter:  30 meters (13 May 2007 estimate from standard formula)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-J53

Notes:  2007 JB21 was discovered by LINEAR on 12 May 2007 and announced the next day, which is when NEODyS posted it as an impact risk. It was removed on May 15th.

Packed designation:  K07J21B


2007 HZ

Current assessment:  NO impact solutions

Diameter:  290 meters (JPL 19 April 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-H17

Notes:  2007 HZ was discovered on 18 April 2007 by the Mt. Lemmon Survey and announced the same day. JPL posted it early on the 19th UTC (still the 18th in Pasadena), with a highly preliminary first impact solution in October of 2008. NEODyS posted this object as a risk later on the 19th and both risk monitors removed it on the 20th.

Packed designation:  K07H00Z


2007 HX4

Current assessment:  NO impact solutions

Diameter:  1.00 km. = 0.62 mile (JPL 22 April 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPECs 2007-H37 & 2007-K58

Notes:  2007 HX4 was discovered by the Catalina Sky Survey on 20 April 2007 and announced the next day, which is when JPL posted it as an impact risk. NEODyS posted it on April 22nd, and both risk monitors removed it on April 26th.

On May 26th an update MPEC reported that Rob Matson had found 2007 HX4 in the archives from NEAT's first and second U.S. Air Force telescopes on Haleakala from 22 and 26 April 1998 and 20 May 2001.

Packed designation:  K07H04X


2007 HX3

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  390 meters (JPL 27 April 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-H20

Notes:  2007 HX3 was discovered by the Mt. Lemmon Survey on 18 April 2007 and announced the next day. NEODyS posted it as an impact risk on April 20th. JPL posted it on April 24th, after the next observation of this object was reported. JPL removed it on April 25th but posted it again on the 27th.

This object was calculated to go out of view for most NEO observers on May 8th but should be in view for larger telescopes through September.

Packed designation:  K07H03X

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment

Years

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2026-2043  3-4.88-5.0208.049
27 April

Years

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2043-2105  8-5.25-5.2908.0491.9e-080.390

2007 HP

Current assessment:  NO impact solutions

Diameter:  90 meters (JPL 26 April 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-H15

Notes:  2007 HP passed Earth at about 4.8 lunar distances on 13 April 2007 and was discovered by the Catalina Sky Survey on the 18th, which is when it was announced and JPL posted it with impact solutions beginning in October 2009. NEODyS posted 2007 HP as a risk on April 19th and removed it the next day, while JPL's risk assessment changed to a single low-rated solution in 2081. JPL removed 2007 HP as a risk on April 27th.

Packed designation:  K07H00P


2007 HH44

Current assessment:  NO impact solutions

Diameter:  30 meters (26 April 2007 estimate from standard formula)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-H54

Notes:  2007 HH44 was discovered by the Mt. Lemmon Survey on 24 April 2007 and announced the next day. On April 26th it was posted as an impact risk by NEODyS, which removed it on the 28th.

Packed designation:  K07H44H


2007 HG44

Current assessment:  NO impact solutions

Diameter:  521 meters (JPL 1 May 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-H53

Notes:  2007 HG44 was discovered on 24 April 2007 by the Catalina Sky Survey and announced the next day. JPL posted and removed it as an impact risk on April 26th and 27th. On May 1st, when the next observation became available, JPL and NEODyS both posted it with impact solutions, which were all removed a day later.

Packed designation:  K07H44G


2007 HF44

Current assessment:  NO impact solutions

Diameter:  650 meters (JPL 27 April 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-H52

Notes:  2007 HF44 was discovered by the Mt. Lemmon Survey on 22 April 2007 and announced on the 25th, which is when JPL posted it as an impact risk. NEODyS posted it on April 26th and both risk monitors removed it on the 28th.

Packed designation:  K07H44F


2007 HE15

Current assessment:  NO impact solutions

Diameter:  380 meters (JPL 16 May 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-H45

Notes:  2007 HE15 was discovered by the Siding Spring Survey on 22 April 2007 and announced on the 24th, which is when NEODyS and JPL listed it with impact solutions. NEODyS removed it on May 13th and JPL on May 20th.

Packed designation:  K07H15E


2007 HD15

Current assessment:  NO impact solutions

Diameter:  52 meters (JPL 24 April 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-H44

Notes:  2007 HD15 was discovered by the Catalina Sky Survey on 22 April 2007 and announced on the 24th, which is when JPL posted it as a very low-rated impact risk. This was removed on April 28th.

Packed designation:  K07H15D


2007 HC

Current assessment:  NO impact solutions

Diameter:  32 meters (JPL 17 April 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-H10

Notes:  2007 HC was discovered by the Siding Spring Survey on 16 April 2007 and announced the same day, and was posted as an impact risk by JPL on early on the 17th (still the 16th in Pasadena). NEODyS posted it later on the 17th and both risk monitors removed it on April 18th.

Packed designation:  K07H00C


2007 HB15

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  9 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-H43

Notes:  2007 HB15 was discovered by the Catalina Sky Survey on 23 April 2007 and was confirmed and announced that same day. It was posted as an impact risk by JPL and NEODyS the next day.

2007 HB15 flew through the Earth-Moon system, passing at 0.6 lunar distance from Earth on April 24th, and went out of view for ground-based optical telescopes by the 26th. It was last reported observed by Tiki Observatory on April 24th, at about nine hours before the time of closest approach.

Packed designation:  K07H15B

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

Years

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2055-210727-5.96-6.0701.1753.8e-050.009

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2055-2080  9-5.98-5.9801.175
25 April 07

2007 HA59

Current assessment:  NO impact solutions

Diameter:  4.461 km. = 2.77 miles (JPL 7 May 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPECs 2007-H58 & 2007-J25

Notes:  2007 HA59, which is in an unusual orbit for an asteroid, was discovered on 24 April 2007 by Spacewatch with its 0.9m telescope and announced on April 26th. JPL posted it on April 26th and NEODyS on the 27th. Both removed it on May 8th after an update MPEC reported that 2007 HA59 had been identified in observations from the Spacewatch 0.9m telescope from 23 and 28 May 2003.

The DOU MPEC for May 9th carried two positions for 2007 HA59 from NEAT's Haleakala telescope on 11 May 2003.

Packed designation:  K07H59A


2007 GW4

Current assessment:  NO impact solutions

Diameter:  245 meters (16 April 2007 estimate from standard formula)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-G48

Notes:  2007 GW4 was discovered by the Catalina Sky Survey on 14 April and announced that day. NEODyS listed it with impact solutions the next day and removed it on April 16th.

Packed designation:  K07G04W


2007 GU4

Current assessment:  NO impact solutions

Diameter: 110 meters (JPL 15 April 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-G47

Notes:  2007 GU4 was discovered by the Catalina Sky Survey on 14 April and announced the same day. JPL posted it as an impact risk early the next day (still the 14th in Pasadena). NEODyS posted it on the 15th and both risk monitors removed it on April 16th.

Packed designation:  K07G04U


2007 GU1

Current assessment:  NO impact solutions

Diameter: 39 meters (JPL 11 April 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-G28

Notes:  2007 GU1 was discovered by the Catalina Sky Survey on 11 April 2007 and announced the same day, which is also when JPL posted it as an impact risk. When further observations were reported the next day, JPL removed all of its impact solutions for this object.

2007 GU1 passed Earth at 2.1 lunar distances April 16th and went out of view the next day.

Packed designation:  K07G01U


2007 GG

Current assessment:  NO impact solutions

Diameter:  1.09 km. = 0.68 mile (JPL 14 April 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPECs 2007-G23 & 2007-H39

Notes:  2007 GG was discovered on 7 April 2007 by David Tholen's team on Mauna Kea using the 3.6m Canada-France-Hawaii Telescope (CHFT). The discovery was announced two days later, which is when JPL posted this object as an impact risk. NEODyS posted it the next day and removed it on April 14th. JPL removed it on the 16th.

An MPEC on 21 April 2007 reported that 2007 GG had been correllated with observations of an object designated 2006 SZ370 that had been observed by the Catalina Sky Survey on 28 Aug. and by the SZTE Asteroid Program on 22-23 Sept. 2006.

Packed designation:  K07G00G


2007 GC

Current assessment:  NO impact solutions

Diameter:  190 meters (JPL 8 April 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-G18

Notes:  2007 GC was discovered by the Mt. Lemmon Survey on 7 April 2007, and was confirmed and announced on that same day. JPL and NEODyS posted it as an impact risk the next day and removed it on April 9th.

Packed designation:  K07G00C


2007 FY20

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  37 meters (JPL 19 March 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-F78

Notes:  2007 FY20 was discovered by the Catalina Sky Survey on the morning of 26 March 2007 and confirmed that evening and announced the same day, which is when JPL posted it with impact solutions. NEODyS posted it on the 27th.

2007 FY20 passed Earth at 5.3 lunar distances late on April 2nd and went out of view for all ground-based optical telescopes on the 4th. It was scheduled for radar observation from Arecibo on March 31st and was last reported optically by Great Shefford Observatory, from the evening of April 1st.

On 18 March 2008 radar data was published for 2007 FY20 from Arecibo from that previous March 31st, and both JPL and NEODyS updated their risk assessments the next day.

Packed designation:  K07F20Y

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment

Years

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2085-20907-5.67-5.8706.667
19 March 08

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2085-210728-4.70-4.9806.6673.4e-050.037

2007 FT3

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  340 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-F60

Notes:  2007 FT3 was discovered by the Mt. Lemmon Survey on 20 March 2007 and announced the next day, which is when JPL posted it as an impact risk. NEODyS posted it on March 22nd.

2007 FT3 is theoretically in view for most NEO observers until around July 24th and much longer than that for larger telescopes. It has been lost, however, and has not been reported since Mt. John Observatory observed it on March 21st, and so awaits a determined recovery effort or accidental rediscovery.

Packed designation:  K07F03T

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

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2013-2107141-3.39-4.2201.2339.2e-070.340

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2013-208038-3.45-3.9901.233
22 March 07

2007 FQ3

Current assessment:  NO impact solutions

Diameter:  27 meters (JPL 21 March 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-F57

Notes:  2007 FQ3 was discovered on 20 March 2007 by the Mt. Lemmon Survey and announced the next day, which is when JPL posted it with impact solutions that were all removed a day later.

Packed designation:  K07F03Q


2007 FP3

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  7 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-F56

Notes:  2007 FP3 passed Earth at 3.4 lunar distances on 15 March 2007 and was caught by the Mt. Lemmon Survey five days later. Its discovery was announced on March 21st, which is when JPL posted it as a very low-rated impact risk. NEODyS posted it on March 22nd.

2007 FP3 went out of view for most NEO observers on March 23rd and hasn't been reported observed since its discovery announcement with an observing arc of less than 23 hours. It theoretically remained in view for larger telescopes through mid-April, but was not reported observed again.

Packed designation:  K07F03P

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

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2054-210610-7.80-8.1500.9401.4e-060.007

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2023-20758-8.00-8.3900.940
22 March 07

2007 FK1

Current assessment:  NO impact solutions

Diameter:  360 meters (JPL 20 March 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-F40

Notes:  2007 FK1 was discovered on 17 March 2007 by LONEOS and announced two days later, which is when JPL posted it as an impact risk. NEODyS posted it on March 20th and both risk monitors removed it on March 26th.

Packed designation:  K07F01K


2007 FE1

Current assessment:  NO impact solutions

Diameter:  640 meters (JPL 19 March 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-F35

Notes:  2007 FE1 was discovered by the Catalina Sky Survey on 17 March 2007 and was announced two days later, which is when JPL posted it as an impact risk. NEODyS posted it on March 20th and both risk monitors removed it on March 22nd.

Packed designation:  K07F01E


2007 FE

Current assessment:  NO impact solutions

Diameter:  409 meters (JPL 22 March 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPECs 2007-F29 & 2007-H70

Notes:  2007 FE was discovered by the Catalina Sky Survey on 16 March 2007, and was announced the next day and posted with impact solutions by JPL early on the 18th UT. NEODyS posted it later that day and both risk monitors removed it on March 26th.

On April 28th it was reported that Rob Matson had found 2007 FE in the archives from NEAT's Mt. Palomar telescope from 4 and 23 Feb. and 4 March 2002.

Packed designation:  K07F00E


2007 FD

Current assessment:  NO impact solutions

Diameter:  1.35 km. = 0.84 mile (25 May 2007 estimate from standard formula)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPECs 2007-F28, 2007-H13 & 2007-K50

Notes:  2007 FD was discovered with the Spacewatch 0.9m telescope on 16 March 2007 and announced the next day, which is when JPL posted it as an impact risk. NEODyS posted it on March 18th.

After the Spacewatch 1.8m telescope closed out the discovery confirmation process on March 17th, this large object wasn't reported observed again until an update MPEC was posted late on April 17th with recovery observations from the Mt. Lemmon Survey and the Spacewatch 1.8m telescope during 14-16 April. And JPL and NEODyS removed 2007 FD as an impact risk on April 18th UTC.

On May 25th another update MPEC reported that Rob Matson had found 2007 FD in the archives from the Siding Spring Sky Survey from 13 Aug. 1982 and from NEAT's Hawaiian telescope on 24 Feb. and 20 and 29 March 2001.

Packed designation:  K07F00D


2007 FA

Current assessment:  NO impact solutions

Diameter:  280 meters (JPL 17 March 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-F22

Notes:  2007 FA was discovered by the Catalina Sky Survey on 16 March 2007 and was announced on the 17th, which is when NEODyS and JPL posted it as an impact risk. They both removed it on March 22nd.

Packed designation:  K07F00A


2007 EZ25

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  26 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-E54

Notes:  2007 EZ25 passed Earth at 4.0 lunar distances on 4 March 2007 and was discovered by the Mt. Lemmon Survey on March 9th. The discovery was announced on March 12th and this object was posted as an impact risk by JPL and NEODyS the next day.

2007 EZ25 was calculated to go out of view for most NEO observers on March 15th and for larger telescopes around the end of the month. It was last reported observed March 15th, by the Spacewatch 1.8m telescope.

Packed designation:  K07E25Z

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
Prob
Cum

Diam
2047-20872-6.57-6.7605.9452.6e-070.026

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
2047-20522-6.59-6.6005.945
16 March 07

2007 EX

Current assessment:  NO impact solutions

Diameter:  1.40 km. = 0.87 mile (JPL 11 March 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-E47

Notes:  The Siding Spring Survey (SSS) is the NASA/UA/ANU outpost in Australia on a lonely watch for unknown kilometer-size objects appearing the southern celestial hemisphere, and it has bagged one more. 2007 EX was discovered on the 10th and was confirmed also from below the equator, by CEAMIG-REA in Brazil, and was announced early on the 11th. Later that day JPL and NEODyS posted it with impact solutions beginning nine years away, which was highly preliminary, based on only nine astrometric positions taken over a period of less than ten hours. JPL and NEODyS removed it just a day later when further observations were reported from the SSS.

Packed designation:  K07E00X


2007 EV

Current assessment:  JPL NEOPO

Diameter:  33 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-E45

Notes:  2007 EV was discovered on 10 March 2007 by the Catalina Sky Survey and announced the next day, which is when JPL posted it with a low-rated first impact solution in September of next year. On March 12th NEODyS posted a risk assessment also with a 2008 solution but removed all solutions the same day after incorporating new observational data, while JPL's updated assessment had no solutions before the year 2063. On March 13th NEODyS reposted 2007 EV as an impact risk but removed it again the next day.

2007 EV is calculated to have gone out of view for all ground-based optical telescopes on March 18th.

Packed designation:  K07E00V

JPL NEOPO Sentry Assessment
16 May 08

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
Prob
Cum

Diam
2088-2104    4-5.84-6.0005.6673.1e-060.033

2007 ES

Current assessment:  NO impact solutions

Diameter:  675 meters (14 March 2007 estimate from standard formula)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-E43

Notes:  2007 ES was discovered with the Spacewatch 1.8m telescope on 9 March 2007 and announced the next day. On March 11th NEODyS posted 2007 ES with low-rated impact solutions for August or September of many years starting next year. With less than 32 hours of observing, this risk assessment was, of course, highly preliminary and one day later all impact solutions were eliminated when the next observations became available.

Packed designation:  K07E00S


2007 EQ

Current assessment:  NO impact solutions

Diameter:  170 meters (JPL 11 March 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-E42

Notes:  2007 EQ was discovered on 10 March 2007 by the Catalina Sky Survey and announced that day. It was posted as an impact risk on March 11th by JPL and removed later the same day after further observation became available.

Packed designation:  K07E00Q


2007 EO88

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  18 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPECs 2007-F18 & 2007-F31

Notes:  2007 EO88 was discovered on 15 March 2007 by the Catalina Sky Survey and announced on the 16th. On March 17th JPL and NEODyS posted it as an impact risk.

JPL reports that 2007 EO88 flew past Earth at 1.3 lunar distances on the 18th. After March 19th it went out of view for all ground-based optical telescopes.

Packed designation:  K07E88O

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
Prob
Cum

Diam
2073-20956-6.35-6.5003.4403.1e-060.018

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
2073-20785-6.38-6.5103.449
20 March 07

2007 EN88

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  17 meters (JPL 18 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-F17

Notes:  2007 EN88 flew past Earth at 2.3 lunar distances on 13 March 2007, and was discovered by LINEAR on the 15th and announced the next day. JPL and NEODyS posted it with impact solutions on March 17th.

2007 EN88 was calculated to go out of view for most NEO observers on March 22nd and was theoretically in view for larger telescopes into early April, but wasn't reported observed again after Farpoint Observatory's discovery confirmation on March 16th.

Packed designation:  K07E88N

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
Prob
Cum

Diam
2032-21043-7.24-7.3801.1105.1e-070.017

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
2068-20681-8.03-8.0301.110
17 March 07

2007 EM88

Current assessment:  NO impact solutions

Diameter:  648 meters (JPL 18 March 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-F16

Notes:  2007 EM88 was discovered on 15 March 2007 with the Spacewatch 0.9m telescope, was announced on the 16th, and was posted on the 17th by JPL and NEODyS as an impact risk. All impact solutions were removed on March 21st.

Packed designation:  K07E88M


2007 EK

Current assessment:  NEODyS [backup]

Diameter:  5 meters (26 March 2007 estimate from standard formula)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-E37

Notes:  2007 EK was caught on the way into the Earth-Moon system by Spacewatch with its 0.9m telescope on 9 March 2007, four days and ten minutes before this tiny object passed Earth at 0.7 lunar distance. The discovery was announced on March 10th. NEODyS posted it the next day, removed it on March 13th, and reposted it on the 14th.

2007 EK went out of view for all ground-based optical telescopes after March 13th and was last reported observed from Great Shefford Observatory that morning.

Packed designation:  K07E00K

NEODyS Clomon Assessment

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
2077-20771-11.40-11.4003.944
26 March

2007 EJ88

Current assessment:  NO impact solutions

Diameter:  82 meters (JPL 17 March 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-F13

Notes:  2007 EJ88 was discovered by the Mt. Lemmon Survey on 14 March 2007 and announced on the 16th. JPL and NEODys posted it as an impact risk on March 17th, and both removed it on March 22nd.

Packed designation:  K07E88J


2007 EJ

Current assessment:  NO impact solutions

Diameter:  750 meters (JPL 29 March 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-E35

Notes:  2007 EJ was discovered by the Mt. Lemmon Survey on 9 March 2007 and announced the next day, which is when JPL and NEODyS posted it with impact solutions. NEODyS removed it on March 29th and JPL on April 8th.

Packed designation:  K07E00J


2007 EH26

Current assessment:  NO impact solutions

Diameter:  50 meters (JPL 17 March 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-E60

Notes:  2007 EH26 was discovered on 10 March 2007 by the Mt. Lemmon Survey and announced on the 12th. On March 13th JPL and NEODyS posted this object with impact solutions, NEODyS removed it on March 16th, and JPL on the 17th. It went out of view for most NEO observers on March 21st and a few days later for all telescopes.

Packed designation:  K07E26H


2007 EE126

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  25 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-F24

Notes:  2007 EE126 passed Earth at 5.0 lunar distances on 10 March 2007, and was discovered on the 15th by the Mt. Lemmon Survey (MLS) and announced two days later, after confirmation from only the MLS itself on the 16th. JPL posted it as an impact risk on March 17th and NEODyS on the 18th.

2007 EE126 went out of view for most NEO observers overnight 17-18 March. It was theoretically in view for larger telescopes until around the end of the month, but wasn't reported observed again.

Packed designation:  K07EC6E

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
Prob
Cum

Diam
2065-20923-7.33-7.5300.9944.0e-080.025

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
2065-20754-7.03-7.3200.994
18 March 07

2007 EE26

Current assessment:  JPL NEOPO

Diameter:  21 meters (JPL 4 April 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-E58

Notes:  2007 EE26 passed Earth at 8.1 lunar distances on 18 Feb. 2007, and was first spotted on March 10th by the Mt. Lemmon Survey and announced two days later. It was calculated to go out of view for most NEO observers on March 17th but to remain in view for larger telescopes into early April. It was not reported observed again until astrometry from the Southern African Large Telescope from March 13th was published in the DOU MPEC of April 4th, which is when JPL posted this object with a single very low-rated impact solution.

Packed designation:  K07E26E


JPL NEOPO Sentry Assessment
4 April

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
Prob
Cum

Diam
2086-20861-8.12-8.1203.6776.2e-080.021

2007 EA26

Current assessment:  NO impact solutions

Diameter:  340 meters (13 March 2007 estimate from standard formula)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-E55

Notes:  2007 EA26 was discovered by the Mt. Lemmon Survey on 9 March 2007 and announced three days later. NEODyS posted it on March 13th as an impact risk and removed it on the 16th.

From its absolute magnitude (brightness), this object is very roughly calculated to be about 340 meters in diameter.

Packed designation:  K07E26A


2007 DZ40

Current assessment:  NO impact solutions

Diameter:  750 meters (JPL 2 March 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-D48

Notes:  2007 DZ40 was discovered by the Catalina Sky Survey on 22 Feb. 2007 and announced the next day, which is when JPL posted it as an impact risk. NEODyS posted it on Feb. 24th and removed it on March 2nd. JPL removed it on March 4th.

Packed designation:  K07D40Z


2007 DY40

Current assessment:  NO impact solutions

Diameter:  191 meters (JPL 24 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-D47

Notes:  2007 DY40 was discovered by the Mt. Lemmon Survey on 21 Feb. 2007 and announced two days later, which is when JPL posted it with impact solutions. NEODyS posted it on Feb. 24th and both risk monitors removed it on Feb. 26th.

Packed designation:  K07D40Y


2007 DX40

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  40 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-D46

Notes:  2007 DX40 was discovered by the Mt. Lemmon Survey on 21 Feb. 2007 and announced two days later, which is when JPL posted it as an impact risk. NEODyS posted it on Feb. 24th.

JPL reports that this object will pass Earth at about 7.7 lunar distances on March 4th, and Lowell Observatory reports that it also gets close to Venus and Mars. It is calculated to have gone out of view for most NEO observers on March 6th and for all ground-based optical telescopes a day later. It was last reported observed on March 2nd, from Great Shefford Observatory.

Packed designation:  K07D40X

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
Prob
Cum

Diam
2030-2107  40-3.49-3.7908.6961.6e-040.040

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
2035-2080  39-3.49-3.7808.696
3 March 07

2007 DS84

Current assessment:  NO impact solutions

Diameter:  270 meters (JPL 28 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-D77

Notes:  2007 DS84 was discovered by the Catalina Sky Survey on 27 Feb. 2007 and announced the next day, which is when JPL posted it with a number of low-rated impact solutions beginning as early as 2011. NEODyS posted it on March 1st. These risk assessments were highly preliminary, based on just over one day of astrometry, and all impact solutions were removed when the next observation became available on March 2nd.

Packed designation:  K07D84S


2007 DS7

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  23 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-D31

Notes:  2007 DS7 was discovered by the Catalina Sky Survey, confirmed, and announced on 21 Feb. 2007, and was posted by JPL and NEODyS on Feb. 22nd.

This small object was calculated to go out of view for most NEO observers around March 3rd and to fade away for larger telescopes over the following two weeks. It was last reported observed on the morning of Feb. 25th from the Spacewatch 1.8m telescope and from Tim Spahr via Whipple Observatory, both on Kitt Peak in Arizona, giving it a 4.22-day observing arc.

Packed designation:  K07D07S

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
Prob
Cum

Diam
2048-210717-5.32-5.5404.2201.8e-050.023

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
2048-208010-5.50-5.5304.220
27 Feb. 07

2007 DN41

Current assessment:  NO impact solutions

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-D64

Notes:  2007 DN41 flew through the Earth-Moon system at 0.8 lunar distance from Earth on 21 Feb. 2007 and was picked up by the Mt. Lemmon Survey on the 23rd. It was listed as an impact risk by JPL early on Feb. 24th (still the 23rd in Pasadena). Later on the 24th prediscovery observations were reported from the 22nd and 23rd from LINEAR, which caught this object about 22 hours after it passed its closest point to Earth. JPL removed it as a risk on Feb. 27th when the first follow-up observations became available.

Packed designation:  K07D41N


2007 DM41

Current assessment:  NO impact solutions

Diameter:  140 meters (JPL 24 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-D63

Notes:  2007 DM41 was discovered on 23 Feb. 2007 by the Catalina Sky Survey and announced the same day. JPL posted it on Feb. 24th as an impact risk. NEODyS posted it on Feb. 25th and both risk monitors removed it on Feb. 26th.

Packed designation:  K07D41M


2007 DL8

Current assessment:  NO impact solutions

Diameter:  793 meters (JPL 25 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-D40

Notes:  2007 DL8 was discovered by the Mt. Lemmon Survey on 21 Feb. 2007 and announced the next day, which is when JPL posted it with impact solutions. NEODyS posted it on Feb. 25th, which is when both risk monitors published impact solutions for the year 2010. These risk assessments were quite preliminary, based on a couple dozen astrometric positions taken over a period of barely more than three days, and would change immediately with further observation. On Feb. 26th JPL and NEODyS removed all impact solutions for this object.

Packed designation:  K07D08L


2007 DK49

Current assessment:  NO impact solutions

Diameter:  770 meters (JPL 24 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPECs 2007-D67

Notes:  2007 DK49 was discovered and confirmed from the southern hemisphere, found on 23 Feb. 2007 by the Siding Spring Survey (SSS) in Australia and confirmed on the 24th from Brazil and New Zealand, and finally by the SSS itself. It was announced on Feb. 24th, which is when JPL posted it with two low-rated impact solutions. JPL removed it on March 2nd when the next observations became available from New Zealand and Australia.

Packed designation:  K07D49K


2007 DK

Current assessment:  NO impact solutions

Diameter:  280 meters (JPL 18 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-D19 & 2007-E66

Notes:  2007 DK was discovered by the Catalina Sky Survey on the morning of 17 Feb. and announced the next day, which is when JPL posted it as an impact risk. JPL removed it on Feb. 19th.

On March 13th an update MPEC was issued for this object reporting that it had been found by Rob Matson in the archives from NEAT's Mt. Palomar telescope from 27 Jan., 6 and 16 Feb., and 11 Dec. 2002.

Packed designation:  K07D00K


2007 DJ

Current assessment:  NO impact solutions

Diameter:  49 meters (JPL 18 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-D18

Notes:  2007 DJ was discovered on 17 Feb. 2007 by the Catalina Sky Survey and announced later that day. JPL posted it as an impact risk early on the 18th and removed it later the same day after a single additional astrometric position was reported just beyond the discovery arc.

Packed designation:  K07D00J


2007 DD

Current assessment:  NO impact solutions

Diameter:  27 meters (JPL 17 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-D15

Notes:  2007 DD passed Earth at about 4.1 lunar distances early on 14 Feb. 2007. It was discovered by the Catalina Sky Survey (CSS) on the 17th and was announced with an observing arc consisting of 15 CSS astrometric positions spanning three and a half hours. JPL posted 2007 DD as an impact risk that same day and removed it on Feb. 19th after the next observations became available.

Packed designation:  K07D00D


2007 DC

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  11 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-D14

Notes:  2007 DC passed Earth at about 1.6 lunar distances on 8 Feb. 2007 and was discovered on the 16th by the Mt. Lemmon Survey, which alone confirmed it the next day. It was posted as an impact risk by JPL on Feb. 17th and NEODyS on the 18th.

This very small object went out of view for most NEO observers on Feb. 23rd but theoretically continued to be in view for larger telescopes until mid-March. It was last reported observed on Feb. 25th, from the Spacewatch 1.8m telescope.

Packed designation:  K07D00C

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
Prob
Cum

Diam
2034-2108  50-6.35-7.1408.9821.1e-050.011

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
2040-2080  31-6.49-7.1908.982
26 Feb. 07

2007 DA41

Current assessment:  NO impact solutions

Diameter:  1.30 km. = 0.81 mile (JPL 23 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-D49

Notes:  2007 DA41 was discovered and confirmed from the southern hemisphere, found from Australia by the Siding Spring Survey (SSS) on 22 Feb. 2007 and observed later that day from Brazil. It was announced the next day, which is when JPL posted it as an impact risk. NEODyS posted it on Feb. 25th with a risk assessment that includes a 2009 impact solution. These risk assessments were highly preliminary considering that they were based on a half-day observational arc, and all impact solutions were removed when the next observation became available (from the SSS) on March 3rd.

Packed designation:  K07D41A


2007 CZ49

Current assessment:  NO impact solutions

Diameter:  260 meters (JPL 14 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-C67

Notes:  2007 CZ49 was discovered on 13 Feb. 2007 by LINEAR and announced the next day, which is when JPL posted it as an impact risk. NEODyS posted one very low-rated impact solution on Feb. 15th which it removed on Feb. 17th. JPL removed this object from its risk listings on Feb. 18th.

Packed designation:  K07C49Z


2007 CT26

Current assessment:  NO impact solutions

Diameter:  73 meters (JPL 27 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-C62

Notes:  2007 CT26 was discovered by LINEAR on 13 Feb. 2007 and was announced early the next day. JPL posted it then with 462 impact solutions beginning in the year 2028, a count that dropped a day later to fewer than two dozen solutions starting in 2095. The last solution was eliminated on March 9th.

Packed designation:  K07C26T


2007 CS26

Current assessment:  NO impact solutions

Diameter:  257 meters (JPL 14 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-C61

Notes:  2007 CS26 was discovered on 13 Feb. 2007 by LINEAR and announced early on the 14th. JPL posted it then with low-rated impact solutions which it removed later the same day when further observation became available.

Packed designation:  K07C26S


2007 CS5

Current assessment:  NO impact solutions

Diameter:  45 meters (JPL 18 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-C28

Notes:  2007 CS5 was discovered and confirmed by the Mt. Lemmon Survey alone on 7 and 8 Feb. 2007. After the discovery was announced on the 8th, JPL posted this object as an impact risk. NEODyS posted it on Feb. 10th. JPL removed it on Feb. 23rd and NEODyS on the 25th.

Packed designation:  K07C05S


2007 CQ5

Current assessment:  NO impact solutions

Diameter:  122 meters (JPL 9 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-CQ5

Notes:  2007 CQ5 was discovered on 7 Feb. 2007 by the Mt. Lemmon Survey, which alone confirmed it the next day. On Feb. 8th the discovery was announced and JPL listed this object as an impact risk, which was removed on Feb. 11th.

Packed designation:  K07C05Q


2007 CN26

Current assessment:  NO impact solutions

Diameter:  200 meters (JPL 22 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-C59

Notes:  2007 CN26 was discovered by the Mt. Lemmon Survey (MLS) on the morning of 10 Feb. 2007. It was "Added Feb. 10.53 UT" to the MPC's NEO Confirmation Page but confirmation didn't come until the MLS itself caught it again on the morning of the 13th. The discovery was announced that day, which is when JPL posted it as a low-rated impact risk. NEODyS posted it on Feb. 14th and removed it on the 22nd. JPL removed it on Feb. 24th.

Packed designation:  K07C26N


2007 CK15

Current assessment:  NO impact solutions

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-C43

Notes:  2007 CK15 was discovered by LINEAR on 9 Feb. 2007 and announced the next day, which is when JPL and NEODyS posted it as an impact risk. The first risk assessment from NEODyS included a low-rated impact solution in August of 2009, but this was based on just 14 astrometric postions spanning only 17 hours. When the next observation became available on Feb. 15th, all impact solutions were removed.

Packed designation:  K07C15K


2007 CC27

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  14 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-C66

Notes:  2007 CC27 was discovered by LINEAR on 13 Feb. 2007 and announced the next day, which is when JPL posted it with impact solutions. NEODyS posted it on Feb. 15th. It was calculated to go out of view for most NEO observers on Feb. 22nd. It was last reported observed on Feb. 19th, from the Mt. Lemmon Survey.

Packed designation:  K07C27C

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
Prob
Cum

Diam
2059-2100  42-5.44-5.8606.0024.6e-050.014

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
2056-207922-5.80-6.1706.002
22 Feb. 07

2007 CA19

Current assessment:  NO impact solutions

Diameter:  1.00 km. = 0.62 mile (JPL 21 Feb. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-C47

Notes:  Kilometer-size 2007 CA19 was discovered on 10 Feb. 2007 by the Catalina Sky Survey. It was announced early the next day, which is when NEODyS and JPL posted it with numerous impact solutions beginning in the year 2010. Both risk monitors were able to cut their solution counts dramatically when just nine more hours were added to the observing arc on the 13th, although their new solution sets showed a small increase in their risk assessments. With the arc next extended by two days, the solution counts were further reduced and the threat was moved back a year, to 2011, but again with an increase in overall risk ratings. On Feb. 15th, with almost two more days of observation, NEODyS and JPL removed their 2011 impact solutions but raised their 2012 solutions to Torino Scale 1. This was an alert to the NEO observing community to track this object closely but was "no cause for public attention or public concern." (The Palermo Scale ratings were elevated early-on due in part to the estimated size of 2007 CA19 and to the nearness of the preliminary impact solutions.) On Feb. 16th, with still less than a six-day observing arc, NEODyS and JPL were able to sharpen their risk assessments to just one impact solution in 2012 with slightly lowered risk ratings. The decrease in NEODyS ratings continued on the 17th and, on the 18th, NEODyS brought its Torino Scale rating back down to TS-0. On the 19th NEODyS removed this object from its risk listings and JPL lowered its assessment to TS-0. JPL delisted 2007 CA19 as an impact risk on Feb. 22nd.

Packed designation:  K07C19A


2007 BJ29

Current assessment:  NO impact solutions

Diameter:  530 meters (JPL 30 Jan. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-B59

Notes:  2007 BJ29 was discovered on 25 Jan. 2007 by LINEAR which alone confirmed it the next day, when the discovery was announced. NEODyS and JPL posted it with impact solutions on Jan. 27th and NEODyS removed it a day later. JPL removed it on Feb. 1st.

Packed designation:  K07B29J


2007 BG49

Current assessment:  NO impact solutions

Diameter:  826 meters (JPL 29 Jan. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-B69

Notes:  2007 BG49 was discovered with the Spacewatch 0.9m telescope on 28 Jan. 2007 and was announced the next day, which is when JPL posted it as an impact risk. On Jan. 30th JPL removed its listing while NEODyS posted 2007 BG49 as a risk. And on Feb. 7th NEODyS removed it as an impact risk.

Packed designation:  K07B49G


2007 BF72

Current assessment:  NO impact solutions

Diameter:  405 meters (31 Jan. 2007 estimate from standard formula)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-B77

Notes:  2007 BF72 was discovered with the Spacewatch 0.9m telescope on 28 Jan. 2007 and announced two days later. On Jan. 31st NEODyS posted it with a single low-rated impact solution in June 2009. This proximity would be a matter of concern for a well-observed object of this object's size, very roughly estimated at 400 meters wide, but 2007 BF72 has an observing arc of barely two days. An impact solution, or "virtual impactor," is not a prediction but rather a possibility that hasn't yet been eliminated. And elimination was very likely to come with further observation, which is what happened. NEODyS delisted this object as an impact risk when the next observation became available on Feb. 7th.

Packed designation:  K07B72F


2007 BB

Current assessments:  NEODyS [backup] & JPL NEOPO

Diameter:  9 meters (JPL 16 May 2008 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-B13

Notes:  2007 BB was discovered and confirmed alone by the Catalina Sky Survey on 17 Jan. 2007 and was announced on the same day with an observing arc of 6.77 hours. This is when JPL posted this object with a single far-off and very low-rated impact solution. NEODyS posted it on Jan. 18th.

2007 BB passed Earth at one lunar distance on Jan. 19th and went out of view for all ground-based telescopes around the 23rd. It was last reported observed by Farpoint Observatory on Jan. 19th.

Packed designation:  K07B00B

NEODyS Clomon AssessmentJPL NEOPO Sentry Assessment
16 May 08

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
Prob
Cum

Diam
2076-20761-7.21-7.2101.9793.1e-060.009

Years

VI
PS
Cum
PS
Max
T
S
Arc
Days
2076-20761-7.18-7.1801.979
20 Jan. 07

2007 AS2

Current assessment:  NO impact solutions

Diameter:  150 meters (JPL 12 Jan. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-A41

Notes:  2007 AS2 was discovered on 9 Jan. 2007 by LINEAR, which alone confirmed it on the 10th and the discovery was announced the next day. JPL posted it as an impact risk on Jan. 11th and NEODyS the day after, and both removed it on Jan. 14th

After being delisted as an impact risk this object was reclassified as "small," with an absolute magnitude (brightness) greater than H=22.0 and a size on the order of 135 meters.

Packed designation:  K07A02S


2007 AG2

Current assessment:  NO impact solutions

Diameter:  1.00 km. = 0.62 mile (JPL 11 Jan. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-A38

Notes:  2007 AG2 was discovered by LINEAR on 7 Jan. 2007 and announced on the 10th. JPL and NEODyS posted it as an impact risk on the 11th and both removed it the next day.

Packed designation:  K07A02G


2007 AG

Current assessment:  NO impact solutions

Diameter:  320 meters (JPL 10 Jan. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-A19

Notes:  2007 AG was found on 8 Jan. 2007 by the Mt. Lemmon Survey, which got the discovery credit, and by the Catalina Sky Survey. It was announced that same day but it wasn't listed as an impact risk until two days later, after further observations were reported. JPL posted a single distant impact solution on Jan. 10th that it removed the next day.

Packed designation:  K07A00G


2007 AE12

Current assessment:  NO impact solutions

Diameter:  417 meters (JPL 18 Jan. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-B08

Notes:  2007 AE12 was discovered on 10 Jan. 2007 by the Mt. Lemmon Survey and announced on the 16th. The next day it was listed by JPL and NEODyS with impact solutions, and the two delisted it on Jan. 26th.

Packed designation:  K07A12E


2007 AB12

Current assessment:  NO impact solutions

Diameter:  520 meters (JPL 18 Jan. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-B06

Notes:  2007 AB12 was discovered by the Mt. Lemmon Survey on 10 Jan. 2007 and announced on the 16th. It was posted as an impact risk by JPL and NEODyS on Jan. 17th, and both removed it on Feb. 6th.

Packed designation:  K07A12B


2007 AC2

Current assessment:  NO impact solutions

Diameter:  160 meters (JPL 10 Jan. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-A36

Notes:  2007 AC2 was discovered on 10 Jan. 2007 by the Catalina Sky Survey and announced the same day with a 0.325-day observing arc. JPL posted it that same day as an impact risk and NEODyS the next day, and both risk monitors removed it on Jan. 12th.

Packed designation:  K07A02C


2007 AA2

Current assessment:  NO impact solutions

Diameter:  40 meters (JPL 10 Jan. 2007 estimate)

JPL:  Orbit Viewer     NEODyS:  object home page [backup] & observations [backup]

Circulars:  MPEC 2007-A33

Notes:  2007 AA2 passed Earth on 6 Jan. 2007 at 10.5 lunar distances and was discovered by the Catalina Sky Survey on the 9th. This was announced the next day, which is when JPL posted it with impact solutions. NEODyS posted it on the 11th and both risk monitors removed it on Jan. 12th.

Packed designation:  K07A02A


http://www.HohmannTransfer.com/news/crt07obj.htm - updated 5 July 2008
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