2008-06-03 Tracking News

Contents on 3 June '08

IAU Minor Planet Center
- NEOCP Activity -- three listings: 3 updated
- New MPECs -- one MPEC
Observers -- thirteen observing facilities
Impact Risk Monitoring -- nine objects
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Earth's Busy Neighborhood Traffic Report
Ephemerides for risk-rated and nearby objects
Old & new CRT Archive
Old News Archive & Small Objects Archive

NOTE: These news page will update less often and at sometimes irregular intervals from May 31st through approximately June 7th.

The latest A/CC news is available via framed access, RSS news feed, or redirection. - Note: A/CC has a main Web site and also a backup site with its own duplicate RSS news feed.

Navigation tips: Use the << and >> arrows on the menus for each regular section (Observers, Risks, etc.) to move to the previous and next day's news for that section. Use the Index menu item to access specific days through a calendar interface. And use the all-up news archive to access news from any time since A/CC began in early 2002. To keep track of what's new each day, watch the Chronology section.

NEOCP Activity on 3 June '08

The MPC's NEO Confirmation Page has 3 listings: 3 updated

When last checked at 2356 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had three updated listings. All of these were "one nighters." So far The Tracking News has counted a total of five objects listed on the NEOCP at some point today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object by Birtwhistle et al. at Suno Observatory.

New MPECs on 3 June '08

Minor Planet Electronic Circulars

As of last check at 2356 UTC, there has been one MPEC issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 3 June '08 >> MPEC 2008-L14 - "06:08 UT" - Daily Orbit Update

Observations of risk-listed objects
K08L00D 2008 LD (small asteroid, arc=0 days, H=28.9 ~6m) from Alter Satzberg Obs. (June 2.87p1 & 2.91-92p2)
K08K11N 2008 KN11 (small asteroid, arc=3 days, H=23.1 ~81m) from Astronomical Research Obs. (ARO) (June 2.22-25p5) and Jim Bedient via Faulkes Telescope North (June 2.32-34p3)
K08K06D 2008 KD6 (arc=4 days, H=19.5 ~426m) from ARO (June 2.36-38p3)
K08K05Z 2008 KZ5 (arc=4 days, H=19.9 ~355m) from ARO (June 2.20-21p3) and the Spacewatch 1.8m telescope (June 2.40-41p3)
K08K00T 2008 KT (small asteroid, arc=5 days, H=28.2 ~8m) from ARO (June 2.09p3)
K08H04U 2008 HU4 (small asteroid, arc=33 days, H=28.4 ~7m) from Spacewatch 1.8m (June 2.38-39p2)
Observations of recently (no longer) risk-listed objects
K08K06F 2008 KF6 (small asteroid, arc=3 days, H=23.5 ~68m) from Tiki Obs. (June 1.26p1, 1.35p1 & 2.36-40p2)
K08K02X 2008 KX2 (small asteroid, arc=4 days, H=24.7 ~39m) from ARO (June 2.26p3)
K08J19V 2008 JV19 (arc=25 days, H=20.7 ~245m) from ARO (June 2.10-11p3)
K08J00P 2008 JP (arc=31 days, H=20.8 ~234m) from Spacewatch 1.8m (June 2.16-17p2)
K08H38B 2008 HB38 (arc=32 days, H=21.1 ~204m) from David Tholen's team on Mauna Kea (May 20.50p2)
K08H03E 2008 HE3 (Q=4.479 AU, arc=35 days, H=19.0 ~537m) from Spacewatch 1.8m (June 2.24-25p3)
Observations of small asteroids (H>22.0)
K08L00C 2008 LC (arc=1 day, H=24.4 ~45m) from Jim Young via Table Mtn. Obs. (June 2.38-39p2)
K08K06C 2008 KC6 (arc=4 days, H=25.1 ~32m) from Tiki Obs. (June 2.25p1 & 2.33p1)
K08J26S 2008 JS26 (arc=19 days, H=23.7 ~62m) from ARO (June 2.24p3)
Observations of almost-small asteroids (21.7<H<=22.0)
K07S06Q 2007 SQ6 (arc=2 opp, H=21.9 ~141m) from Spacewatch 1.8m (June 2.27-28p3)
Observations of other objects
K08K12B 2008 KB12 (Q=4.506 AU, arc=4 days, H=21.4 ~178m) from ARO (June 2.22-23p3) and Tiki Obs. (June 2.42-46p2)
K08K00Q 2008 KQ (arc=6 days, H=20.5 ~269m) from ARO (June 2.27-29p3) and Bedient/Faulkes North (June 2.31-34p3)
K08J26R 2008 JR26 (arc=20 days, H=20.0 ~339m) from the Spacewatch 0.9m telescope (June 2.23-27p3)
K08J19W 2008 JW19 (arc=26 days, H=20.8 ~234m) from Spacewatch 1.8m (June 3.15-16p3)
K08J14O 2008 JO14 (arc=22 days, H=21.1 ~204m) from Tholen et al. (May 20.50-51p2)
K08J08A 2008 JA8 (arc=28 days, H=18.1 ~812m) from Tiki Obs. (June 2.60-63p2)
K08H37Y 2008 HY37 (arc=35 days, H=18.2 ~776m) from Spacewatch 1.8m (June 3.17-19p3)
K08H03S 2008 HS3 (arc=33 days, H=21.7 ~155m) from Stonegate Obs. (June 2.09-17p4)
K08H01Z 2008 HZ1 (arc=37 days, H=19.3 ~467m) from Spacewatch 1.8m (June 2.18p3)
K08G01E 2008 GE1 (arc=59 days, H=19.2 ~490m) from ARO (June 2.11-13p3 at V=22.1-2)
K08E69C 2008 EC69 (Q=4.458 AU, arc=2 opp, H=17.2 ~1.23 km) from LINEAR (June 2.37-41p5)
K07VI3R 2007 VR183 (Q=4.353 AU, arc=262 days, H=17.5 ~1.07 km) from LINEAR (June 2.21-25p5)
K07V85A 2007 VA85 (i=132.5°, Q=7.308 AU, arc=2 opp, H=15.1 ~3.23 km, q=1.104 AU) from Spacewatch 1.8m (June 2.43p3)
K07V04Q 2007 VQ4 (arc=3 opp, H=16.1 ~2.04 km, q=1.271 AU) from LINEAR (June 2.21-25p5)
K07L15B 2007 LB15 (arc=2 opp, H=19.5 ~426m) from Spacewatch 1.8m (June 2.42p3)
K07L00L 2007 LL (arc=2 opp, H=20.4 ~282m) from LINEAR (June 2.32-35p4)
K06H29R 2006 HR29 (arc=3 opp, H=20.7 ~245m) from LINEAR (June 2.23-26p4)
K05C00A 2005 CA (Q=4.338 AU, arc=6 opp, H=15.4 ~2.82 km, q=1.123 AU) from ARO (June 2.30p1)
K04B58W 2004 BW58 (arc=3 opp, H=18.6 ~645m) from ARO (June 2.32-33p2)
K00AK5D 2000 AD205 (arc=2 opp, H=18.7 ~616m) from Capannoli Obs. (June 2.92-95p4)
J94A01W 1994 AW1 (arc=3 opp, H=17.5 ~1.07 km) from Boambee Obs. (May 31.34-36p2)
G3335 163335 2002 LJ from LINEAR (June 2.26-31p5)
86667 86667 2000 FO10 from LINEAR (June 2.16-20p4)
11398 11398 1998 YP11 from LINEAR (June 2.32-36p4)
07092 7092 Cadmus (1992 LC) from Gualba Obs. (June 1.85p2) and LINEAR (June 2.16-20p5)

Observers on 3 June '08

Thirteen observing facilities appear in today's MPEC.

Code	Observer / observatory
`B03`	Alter Satzberg Obs. in Austria, 1 in MPEC 2008-L14 -- 2008 LD
`H55`	Astronomical Research Obs. (ARO) in Illinois, 12 in MPEC 2008-L14 -- 2008 KZ5, 2008 KX2, 2008 KT, 2008 KQ, 2008 KN11, 2008 KD6, 2008 KB12, 2008 JV19, 2008 JS26, 2008 GE1, 2005 CA, 2004 BW58
`432`	Boambee Obs. in New South Wales, 1 in MPEC 2008-L14 -- 1994 AW1
`B09`	Capannoli Obs. in Italy, 1 in MPEC 2008-L14 -- 2000 AD205
`F654`	Jim Bedient in Hawaii via Faulkes Telescope North in Hawaii, 2 in MPEC 2008-L14 -- 2008 KQ, 2008 KN11
`442`	Gualba Obs. in Spain, 1 in MPEC 2008-L14 -- 7092
`704`	LINEAR in New Mexico, 9 in MPEC 2008-L14 -- 2008 EC69, 2007 VR183, 2007 VQ4, 2007 LL, 2006 HR29, 86667, 163335, 11398, 7092
`5682`	David Tholen's team on Mauna Kea in Hawaii, 2 in MPEC 2008-L14 -- 2008 JO14, 2008 HB38
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2008-L14 -- 2008 JR26
`291`	Spacewatch 1.8m telescope in Arizona, 10 in MPEC 2008-L14 -- 2008 KZ5, 2008 JW19, 2008 JP, 2008 HZ1, 2008 HY37, 2008 HU4, 2008 HE3, 2007 VA85, 2007 SQ6, 2007 LB15
`H67`	Stonegate Obs. in Michigan, 1 in MPEC 2008-L14 -- 2008 HS3
`6735`	Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2008-L14 -- 2008 LC
`F85`	Tiki Obs. in Tahiti, 4 in MPEC 2008-L14 -- 2008 KF6, 2008 KC6, 2008 KB12, 2008 JA8

For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring on 3 June '08

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2356 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) risk pages.
0000NNN000 Object	Risk Monitor	When Noted UTC	0000T0000 Year Range	VI #	000NN00 Prob Cum	T0000 PS Cum	T0000 PS Max	T S	Notes for Today's Latest Risk Assessments

2008 LE	NEODyS	1340	2035-2090	5	2.14e-08	-7.95	-7.99	0	NEODyS: "Based on 12 optical observations (of which 0 are rejected as outliers) from 2008/06/02.295 to 2008/06/02.439."

2008 LD	NEODyS	1518	2049-2090	41	5.95e-05	-6.33	-6.50	0	NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2008/06/02.292 to 2008/06/02.921."
2008 LD	JPL Sentry	1339	2049-2108	54	8.1e-05	-6.25	-6.47	0	JPL: "Analysis based on 15 observations spanning .62851 days (2008-Jun-02.29145 to 2008-Jun-02.919958)." Diameter approximately 0.006 km. from mean, weighted H=28.9.

2008 LB	NEODyS	1340	2021-2084	14	3.5e-06	-5.44	-5.82	0	NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2008/06/01.274 to 2008/06/02.160."

2008 LA	NEODyS	1340	2012-2090	215	5.4e-06	-4.34	-5.26	0	NEODyS: "Based on 16 optical observations (of which 0 are rejected as outliers) from 2008/06/01.170 to 2008/06/02.299."

2008 KN11	NEODyS	1340	2037-2046	5	5.69e-07	-5.11	-5.32	0	NEODyS: "Based on 44 optical observations (of which 0 are rejected as outliers) from 2008/05/30.335 to 2008/06/02.344."
2008 KN11	JPL Sentry	1339	2037-2046	4	5.5e-07	-5.14	-5.32	0	JPL: "Analysis based on 44 observations spanning 3.0093 days (2008-May-30.33435 to 2008-Jun-02.34365)." Diameter approximately 0.081 km. from mean, weighted H=23.1.

2008 KD6	NEODyS	1340	2028-2040	7	3.37e-10	-6.17	-6.78	0	NEODyS: "Based on 14 optical observations (of which 0 are rejected as outliers) from 2008/05/29.430 to 2008/06/02.377."
2008 KD6	JPL Sentry	1339	2012-2059	7	1.5e-09	-5.02	-5.41	0	JPL: "Analysis based on 14 observations spanning 3.9478 days (2008-May-29.42877 to 2008-Jun-02.376557)." Diameter approximately 0.490 km. from mean, weighted H=19.2.

2008 KZ5	NEODyS	1340	2051	1	3.44e-09	-6.09	-6.09	0	NEODyS: "Based on 60 optical observations (of which 1 are rejected as outliers) from 2008/05/29.229 to 2008/06/02.410."
2008 KZ5	JPL Sentry	1339	2026-2087	10	5.0e-08	-4.68	-4.83	0	JPL: "Analysis based on 59 observations spanning 4.1815 days (2008-May-29.22802 to 2008-Jun-02.40948)." Diameter approximately 0.356 km. from mean, weighted H=19.9.

2008 KT	JPL Sentry	1339	2091-2107	5	4.1e-07	-8.43	-8.95	0	JPL: "Analysis based on 30 observations spanning 4.8371 days (2008-May-28.25417 to 2008-Jun-02.09124)." Diameter approximately 0.008 km. from mean, weighted H=28.2.

2008 HU4	NEODyS	1340	2064-2079	7	3.33e-06	-7.49	-7.73	0	NEODyS: "Based on 63 optical observations (of which 0 are rejected as outliers) from 2008/04/30.325 to 2008/06/02.386."
2008 HU4	JPL Sentry	1339	2054-2076	4	2.9e-06	-7.53	-7.71	0	JPL: "Analysis based on 63 observations spanning 33.061 days (2008-Apr-30.32444 to 2008-Jun-02.38511)." Diameter approximately 0.007 km. from mean, weighted H=28.4.

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" to learn more.

Chronology on 3 June '08

Times are UTC for when items were noted or added by The Tracking News.

1517	Noted that NEODyS has posted 2008 LD as an impact risk - see above
1340	Noted that NEODyS has updated its 2008 HU4 risk assessment - see above Noted that NEODyS has updated its 2008 KD6 risk assessment - see above Noted that NEODyS has updated its 2008 KN11 risk assessment - see above Noted that NEODyS has updated its 2008 KZ5 risk assessment - see above
1339	Noted that JPL Sentry has updated its 2008 HU4 risk assessment - see above Noted that JPL Sentry has posted 2008 KD6 as an impact risk - see above Noted that JPL Sentry has updated its 2008 KN11 risk assessment - see above Noted that JPL Sentry has updated its 2008 KT risk assessment - see above Noted that JPL Sentry has updated its 2008 KZ5 risk assessment - see above Noted that NEODyS has posted 2008 LA as an impact risk - see above Noted that NEODyS has posted 2008 LB as an impact risk - see above Noted that JPL Sentry has posted 2008 LD as an impact risk - see above Noted that NEODyS has posted 2008 LE as an impact risk - see above Grabbed MPEC 2008-L14 - Daily Orbit Update - see above

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