Earth's Busy Neighborhood
ACC's Small Object Report for 5-11 March 2007
A semi-automated report compiled on 11 March 2007 at 2359 UTC
Nineteen small asteroids* were reported in the last 168 hours, during which seven were newly discovered.
*One almost-small asteroid is also included in this week's reporting.
Currently 1,263 NEAs are listed with H>22.0 by JPL and/or the MPC (1,081 are listed as such by both).
[ news | objects by size | object index alpha/cross-ref | 48 Hours | viewing | weekly ]
Editor's note: As asteroids go, "small" is defined as having an
absolute magnitude (brightness) calculated at greater than H=22.0, which
converts very roughly to a diameter under 135 meters.
No matter how close they come to the Earth, the astronomical community
does not classify such objects as "potentially hazardous." However, as
demonstrated by the mile wide (1.6 km.) Barringer Crater in Arizona, blasted
out by a "small" asteroid some 50,000 years ago, there are asteroids too small
to be labeled "potentially hazardous" that actually could cause severe local
damage. These are sometimes called "Tunguska-class objects" (TCOs), after the
1908 event probably caused by a comet fragment or asteroid too small to be
classified today as hazardous but packing enough wallop to flatten a Siberian
forest area the size of a large city.
NEODyS in December 2005 changed its main Risk page to classify "Objects too
small to result in heavy damage on the ground" as having "absolute
magnitude > 25," which corresponds to perhaps 35 meters wide.
And JPL two months earlier started flagging (with a blue background) risk-listed
objects of "Estimated diameter 50 meters or less" as "not likely to
cause significant damage in the event of an impact, although impact damage
does depend heavily upon the specific (and usually unknown) physical
properties of the object in question."
Small asteroids that come close enough to Earth to be seen have significant
potential for scientific study today, and for exploration and
exploitation in the future. They present a sampling of distant asteroid
populations and a few may be remnants of the event that created the
Earth-Moon system.
Some of these objects are discovered while close to Earth moving across the sky
quite quickly, when they are called "FMOs" or "VFMOs" (very fast moving objects).
The discovery and follow-up tracking of asteroids with H>22.0 represents
some of the most difficult and very best observing work being done today by
amateur and professional astronomers around the world, and the page you are
reading is dedicated to recognizing their ongoing successes.
Small Object News (newest items first) [ object listings |
index |
48 Hours |
viewing |
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- March 11 #2: Daily Orbit Update (DOU) MPEC 2007-E50 on Sunday reports observations of seven small asteroids. Of the intruders 2007 EH and 2007 EK, both were observed by Great Shefford Observatory in England, and 2007 EH was also reported from the Siding Spring Survey (SSS) in Australia, CEAMIG-REA in Brazil, and Golden Hill Observatory in southern California. 2007 EH has now gone out of view for all ground-based telescopes. It passed Earth at one-half lunar distance this morning while Great Shefford was on its fourth observing run for this object overnight, taking thirteen positions for almost an hour leading up through the time of closest passage. Meanwhile, 2007 EK is on its way into the Earth-Moon system. It was listed today with one far-off and very low-rated impact solution and is calculated to be in view for only a couple more days.
Among the other latest small-asteroid discoveries, Montcabre Observatory in Spain tracked 2007 EG, the SSS added about nine hours to the short observing arc of its own discovery,
2007 EO, and Farra d'Isonzo Observatory caught little-observed 2007 EU.
Long-term follow-up, when possible, is as crucial to NEO observing as nailing down early orbit calculations, and today's DOU reports that Spacewatch in Arizona used its 1.8-meter telescope to extend 2007 BS2's arc from 37 to about 52 days and to add about eleven days to 2007 DX60's six day arc.
Small asteroid 2007 EV, the discovery of which was announced early today, has now been listed as an impact risk, with a first and highly-preliminary impact solution in September of next year.
- March 11 #1: Announced just after midnight are two small-asteroid discoveries. Both were found from Arizona by the Catalina Sky Survey yesterday morning UT and confirmed in the evening by Naef Observatory in Switzerland. Great Shefford Observatory in England also confirmed 2007 EV, which JPL initially reports will pass Earth at about 4.6 lunar distances (LD) on March 16th, while 2007 EU already passed at about 12.6 LD on March 3rd.
- March 10 #3: Two more discoveries of small asteroids have been announced. Tiny intruder 2007 EK was first spotted from Arizona by Spacewatch with its 0.9-meter telescope yesterday morning UT and was soon confirmed with Spacewatch's 1.8-meter telescope, then overnight by Great Shefford, Sabino Canyon, and Mt. John observatories in England, Arizona, and New Zealand, as well as with the Spacewatch 1.8-meter again. JPL reports that 2007 EK will pass Earth at about 0.7 lunar distance early on March 13th, and MPES indicates that it will go out of view a few hours later.
2007 EO, which will hang around until mid-June, was discovered yesterday by the Siding Spring Survey (SSS) in Australia and was confirmed this morning by CEAMIG-REA in Brazil and by Sabino Canyon and Mt. John observatories.
Two discoveries announced earlier today also appear in today's DOU MPEC 2007-E36, which reports observations of seven small asteroids. Farra d'Isonzo Observatory in Italy extended 2007 EG's discovery arc by about half an hour. And around an hour and a half was added to intruder 2007 EH's arc by Great Shefford and Farra d'Isonzo observatories plus Remanzacco Observatory in Italy and CEAMIG-REA, and the SSS filled in astrometry midway through the discovery arc.
Observation of 2007 BD is reported from Pulkovo Observatory in Russia, with 153 positions spanning two hours from the evening of January 17th during this intruder's four-day observational arc. The Mt. Lemmon Survey in Arizona added about sixteen days to 2007 CX50's six-day arc and twelve days to 2007 DA's nine-day arc. Desert Moon Observatory in New Mexico extended 2007 DX's arc from eight to twenty days. And the Spacewatch 1.8-meter was used to add a dozen days to 2007 DH8's four-day arc.
Also reported in the DOU is almost-small
2006 UQ17, which was tracked by NEAT with its Mt. Palomar telescope in southern California.
- March 10 #2: Number two discovery for the day is an intruder. 2007 EH was caught yesterday morning from Arizona by the Catalina Sky Survey (CSS) and confirmed early today by Great Shefford Observatory. JPL reports that this object will pass Earth at 0.5 lunar distance early tomorrow [not today, as first reported].
- March 10 #1: Saturday has started off with the announcement of the discovery of a small asteroid. 2007 EG was found yesterday morning by the CSS and confirmed in the evening by Farra d'Isonzo and Remanzacco observatories in Italy and North Observatory in England. JPL reports that this object will pass Earth at about 8.5 lunar distances tomorrow.
Get ready for a wild ride with many more discoveries of interesting objects. As this one popped off it, the NEO Confirmation Page had a dozen more objects listed, and the southwestern U.S., from where most discoveries are made, is forecast now to have a long clear stretch of weather under a waning Moon.
- March 9: Friday DOU MPEC 2007-E25 reports observation of one small asteroid and one not so small. Spacewatch with its 1.8-meter telescope in Arizona doubled risk-listed 2007 CT26's observing arc to about 24 days. And NEAT used its Mt. Palomar telescope to extend almost-small
2006 UQ17's arc from 145 to 161 days.
When checked from 1500 to 1800 UTC today, JPL had its NEO Program and Solar System Dynamics Group Web pages off line. Update: JPL has delisted 2007 CT26 as an impact risk.
- March 8 #2: Although initially announced much earlier, the MPEC with details of the discovery of small asteroid 2007 EC was not successfully E-mailed or posted online until late today. This object was first noticed by JPL's NEAT program from its Mt. Palomar telescope in southern California on the morning of March 2nd. It was picked up eighteen hours later by CEAMIG-REA in Brazil but then not observed again until this morning when it was caught by Farpoint, Table Mountain, and Mt. John observatories in Kansas, southern California and New Zealand.
- March 8 #1: Thursday's DOU MPEC 2007-E23 reports observations of two small asteroids. The Mt. Lemmon Survey in Arizona added about eight days to 2007 DQ40's five-day observing arc and the SZTE Asteroid Program in Hungary tracked 2007 CQ5.
When checked at 1547, 1652, 1726, and 1830 UTC today, MPC Web services for NEO observers and JPL's NEO Program and Solar System Dynamics Group Web pages were all off line. At 2014 UTC MPC Web services are back up (see Status Page), and so are the JPL NEO and SSD Web sites.
See news stories yesterday about the "YORP effect" on asteroid spin. The two studied objects are a large near-Earth asteroid, 1862 Apollo, and the only asteroid classified as small that has been numbered, 54509 2000 PH5.
- March 7: DOU MPEC 2007-E22 on Wednesday carries astrometry for one small asteroid. Verona Observatory in Italy reported 2007 DJ from Saturday night during the lunar eclipse.
- March 6: Tuesday DOU MPEC 2007-E14 reports observations of two small asteroids. Wildberg Observatory in Germany observed 2007 DJ and the SZTE Asteroid Program in Hungary added about five days to 2007 DB61's three-day observing arc.
The MPC Status Page reports an outage this morning in Web services for NEO observers.
- March 5: Monday's DOU MPEC 2007-E13 reports observation of one small asteroid. 2007 DJ was observed early today by Modra Observatory in Slovakia.
- See news from the week of 26 February to 4 March and from previous weeks. You also can look up reports on individual small asteroids.
Object Listings -- smallest objects first [ Alpha Index | 48 Hours | top ]
2007 EK (K07E00K) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 4 meters per JPL H=29.55, MPC H=29.6
This object has been listed as an impact risk since 11 March 2007.
JPL classifies 2007 EK as an Apollo and calculates an Earth MOID of 0.001331 AU (0.52 LD),
and reports this object will pass Earth at 0.7 lunar distances (LD) on 13 March 2007 at 0530 UT.
Observations are reported from the following observatories in MPECs 2007-E37 and 2007-E50:
Spacewatch 0.9m telescope [691]
2007-03-09 0510-0601, 3 pos. in MPEC 2007-E37, discovery (*)
Spacewatch 1.8m telescope [291]
2007-03-09 0849-0900, 3 pos. in MPEC 2007-E37, confirmation
2007-03-10 0539-0550, 3 pos. in MPEC 2007-E37, confirmation
Great Shefford Obs. [J95]
2007-03-10 0156-0226, 2 pos. in MPEC 2007-E37, confirmation
2007-03-11 0330-0337, 2 pos. in MPEC 2007-E50, follow-up (p)
Sabino Canyon Obs. [854]
2007-03-10 0757-0823, 3 pos. in MPEC 2007-E37, confirmation
Mt. John Obs. [474]
2007-03-10 1107-1123, 4 pos. in MPEC 2007-E37, confirmation (p)
2007 EH (K07E00H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 10 meters per JPL H=27.67, MPC H=27.6
JPL classifies 2007 EH as an Apollo and calculates an Earth MOID of 0.001155 AU (0.45 LD),
and reports this object passed Earth at 0.5 LD on 11 March 2007 at 0137 UT.
Lowell Observatory reports 2007 EH has significant MOIDs with planets Venus (0.03100 AU =
12.06 LD) and Mars (0.02269 AU = 8.83 LD).
Observations are reported from the following observatories in MPECs 2007-E34, 2007-E36,
and 2007-E50:
Catalina Sky Survey (CSS) [703]
2007-03-09 0531-0606, 4 pos. in MPEC 2007-E34, discovery (*)
2007-03-09 0912-0928, 4 pos. in MPEC 2007-E34, confirmation
Siding Spring Survey (SSS) [E12]
2007-03-09 1643-1655, 2 pos. in MPEC 2007-E36, follow-up
2007-03-10 1436-1440, 2 pos. in MPEC 2007-E50, follow-up
Great Shefford Obs. [J95]
2007-03-10 0103-0133, 6 pos. in MPEC 2007-E34, confirmation
2007-03-10 0311-0315, 3 pos. in MPEC 2007-E36, follow-up
2007-03-10 1916-1921, 4 pos. in MPEC 2007-E50, follow-up
2007-03-10 2132-2135, 3 pos. in MPEC 2007-E50, follow-up
2007-03-10 2323-2323, 1 pos. in MPEC 2007-E50, follow-up
2007-03-11 0044-0139, 13 pos. in MPEC 2007-E50, follow-up
Farra d'Isonzo Obs. [595]
2007-03-10 0143-0154, 3 pos. in MPEC 2007-E36, follow-up
CEAMIG-REA [I77]
2007-03-10 0153-0155, 3 pos. in MPEC 2007-E36, follow-up
2007-03-10 0457-0504, 3 pos. in MPEC 2007-E50, follow-up
Remanzacco Obs. [473]
2007-03-10 0156-0204, 2 pos. in MPEC 2007-E36, follow-up
Golden Hill Obs. [J77]
2007-03-11 0003-0008, 4 pos. in MPEC 2007-E50, follow-up
2007 BD (K07B00D) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 26 meters per JPL H=25.58, MPC H=25.4
JPL classifies 2007 BD as an Aten and calculates an Earth MOID of 0.002570 AU (1.00 LD),
and reports this object passed Earth at 0.8 LD on 18 Jan. 2007 at 0252 UT.
Lowell Observatory reports 2007 BD has an MOID of 0.03031 AU (11.79 LD) with Mercury.
Observations are reported from the following observatories in MPEC 2007-E36:
Pulkovo Obs. [084{1}] program code {1}
2007-01-17 2016-2221, 153 pos. in MPEC 2007-E36, follow-up
See also information from the week ending 4 Feb. 2007.
2007 EV (K07E00V) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 31 meters per JPL H=25.18, MPC H=25.2
This object has been listed as an impact risk since 11 March 2007.
JPL classifies 2007 EV as an Apollo and calculates an Earth MOID of 0.005127 AU (1.99 LD),
and reports this object will pass Earth at 4.6 LD on 16 March 2007 at about 1928 UT.
Observations are reported from the following observatories in MPEC 2007-E45:
Catalina Sky Survey (CSS) [703]
2007-03-10 0618-0756, 7 pos. in MPEC 2007-E45, discovery (*)
Great Shefford Obs. [J95]
2007-03-10 2230-2238, 3 pos. in MPEC 2007-E45, confirmation
Naef Obs. [A13]
2007-03-10 2306-2310, 3 pos. in MPEC 2007-E45, confirmation
2007 DH8 (K07D08H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 35 meters per JPL H=24.92, MPC H=24.9
JPL classifies 2007 DH8 as an Amor and calculates an Earth MOID of 0.070908 AU (27.59 LD),
and reports this object passed Earth at 31.4 LD on 20 Feb. 2007.
Observations are reported from the following observatories in MPEC 2007-E36:
Spacewatch 1.8m telescope [291]
2007-03-09 1029-1040, 3 pos. in MPEC 2007-E36, follow-up (H)
See also information from the week ending 4 March 2007.
2007 EG (K07E00G) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 39 meters per JPL H=24.70, MPC H=24.7
JPL classifies 2007 EG as an Aten and calculates an Earth MOID of 0.008790 AU (3.42 LD),
and reports this object passed Earth at 8.8 LD on 11 March 2007 at 1740 UT.
Lowell Observatory reports 2007 EG has an MOID of 0.01580 AU (6.15 LD) with Venus.
Observations are reported from the following observatories in MPECs 2007-E33, 2007-E36,
and 2007-E50:
Catalina Sky Survey (CSS) [703]
2007-03-09 0912-1140, 16 pos. in MPEC 2007-E33, discovery (*)
Farra d'Isonzo Obs. [595]
2007-03-09 2248-2255, 3 pos. in MPEC 2007-E33, confirmation
2007-03-10 0118-0126, 2 pos. in MPEC 2007-E36, follow-up
North Obs. [J69]
2007-03-09 2251-2257, 5 pos. in MPEC 2007-E33, confirmation
Remanzacco Obs. [473]
2007-03-09 2341-2351, 4 pos. in MPEC 2007-E33, confirmation
Montcabre Obs. [213]
2007-03-11 0136-0142, 4 pos. in MPEC 2007-E50, follow-up
2007 EU (K07E00U) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 39 meters per JPL H=24.67, MPC H=24.6
JPL classifies 2007 EU as an Apollo and calculates an Earth MOID of 0.030627 AU (11.92 LD),
and reports this object passed Earth at 12.7 LD on 3 March 2007.
Observations are reported from the following observatories in MPECs 2007-E44 and 2007-E50:
Catalina Sky Survey (CSS) [703]
2007-03-10 0611-0812, 8 pos. in MPEC 2007-E44, discovery (*)
Farra d'Isonzo Obs. [595]
2007-03-10 2232-2312, 3 pos. in MPEC 2007-E50, follow-up
Naef Obs. [A13]
2007-03-10 2236-2304, 4 pos. in MPEC 2007-E44, confirmation
2007 CX50 (K07C50X) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 40 meters per JPL H=24.65, MPC H=24.7
JPL classifies 2007 CX50 as an Apollo and calculates an Earth MOID of 0.016044 AU (6.24 LD),
and reports this object passed Earth at 6.2 LD on 7 Feb. 2007 at 0429 UT.
Lowell Observatory reports 2007 CX50 has an MOID of 0.00605 AU (2.35 LD) with Mars.
Observations are reported from the following observatories in MPEC 2007-E36:
Mt. Lemmon Survey (MLS) [G96]
2007-03-09 0706-0732, 4 pos. in MPEC 2007-E36, follow-up
See also information from the week ending 25 Feb. 2007.
2007 DJ (K07D00J) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 47 meters per JPL H=24.31, MPC H=24.3
This object was listed from 18 until 18 Feb. 2007 as an impact risk.
JPL classifies 2007 DJ as an Apollo and calculates an Earth MOID of 0.018031 AU (7.02 LD),
and reports this object passed Earth at 7.4 LD on 3 March 2007 at 1924 UT.
Observations are reported from the following observatories in MPECs 2007-E13, 2007-E14,
and 2007-E22:
Verona Obs. [A48]
2007-03-03 2353-2357, 5 pos. in MPEC 2007-E22, follow-up
Modra Obs. [118]
2007-03-05 0135-0156, 8 pos. in MPEC 2007-E13, follow-up
Wildberg Obs. [198]
2007-03-06 0016-0024, 5 pos. in MPEC 2007-E14, follow-up
See also information from the week ending 4 March 2007.
2007 DB61 (K07D61B) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 70 meters per JPL H=23.43, MPC H=23.6
JPL classifies 2007 DB61 as an Aten and calculates an Earth MOID of 0.013587 AU (5.29 LD),
and reports this object passed Earth at 7.1 LD on 21 Feb. 2007 at 0957 UT.
Observations are reported from the following observatories in MPEC 2007-E14:
SZTE Asteroid Program [461]
2007-03-04 2327-2333, 3 pos. in MPEC 2007-E14, follow-up
See also information from the week ending 4 March 2007.
2007 CT26 (K07C26T) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 72 meters per JPL H=23.36, MPC H=23.4
This object was listed from 14 Feb. until 9 March 2007 as an impact risk.
JPL classifies 2007 CT26 as an Aten and calculates an Earth MOID of 0.002419 AU (0.94 LD),
and reports this object passed Earth at 2.4 LD on 8 Feb. 2007 at 0655 UT.
Lowell Observatory reports 2007 CT26 has an MOID of 0.01151 AU (4.48 LD) with Venus.
Observations are reported from the following observatories in MPEC 2007-E25:
Spacewatch 1.8m telescope [291]
2007-03-09 0458-0510, 3 pos. in MPEC 2007-E25, follow-up (H)
See also information from the week ending 4 March 2007.
2007 BS2 (K07B02S) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 76 meters per JPL H=23.24, MPC H=23.2
JPL classifies 2007 BS2 as an Amor and calculates an Earth MOID of 0.134863 AU (52.48 LD).
Observations are reported from the following observatories in MPEC 2007-E50:
Spacewatch 1.8m telescope [291]
2007-03-10 0955-1013, 3 pos. in MPEC 2007-E50, follow-up
See also information from the week ending 25 Feb. 2007.
2007 DQ40 (K07D40Q) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 85 meters per JPL H=22.99, MPC H=23.0
JPL classifies 2007 DQ40 as an Apollo and calculates an Earth MOID of 0.012716 AU (4.95 LD),
and reports this object passed Earth at 9.7 LD on 12 Feb. 2007 at 1838 UT.
Lowell Observatory reports 2007 DQ40 has significant MOIDs with planets Venus (0.01780 AU =
6.93 LD) and Mars (0.01600 AU = 6.23 LD).
Observations are reported from the following observatories in MPEC 2007-E23:
Mt. Lemmon Survey (MLS) [G96]
2007-03-07 0715-0722, 4 pos. in MPEC 2007-E23, follow-up
See also information from the week ending 4 March 2007.
2007 DX (K07D00X) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 87 meters per JPL H=22.95, MPC H=22.9
JPL classifies 2007 DX as an Amor and calculates an Earth MOID of 0.213683 AU (83.15 LD).
Lowell Observatory reports 2007 DX has an MOID of 0.94830 AU (369.0 LD) with Jupiter.
Observations are reported from the following observatories in MPEC 2007-E36:
Desert Moon Obs. [448]
2007-03-09 1019-1122, 2 pos. in MPEC 2007-E36, follow-up
See also information from the week ending 4 March 2007.
2007 EO (K07E00O) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 97 meters per JPL H=22.71, MPC H=22.6
JPL classifies 2007 EO as an Amor and calculates an Earth MOID of 0.039389 AU (15.33 LD),
and reports this object will pass Earth at 20.7 LD on 17 March 2007.
Observations are reported from the following observatories in MPECs 2007-E41 and 2007-E50:
Siding Spring Survey (SSS) [E12]
2007-03-09 1501-1756, 12 pos. in MPEC 2007-E41, discovery (*)
2007-03-10 1106-1111, 2 pos. in MPEC 2007-E50, follow-up
2007-03-10 1901-1901, 1 pos. in MPEC 2007-E50, follow-up
CEAMIG-REA [I77]
2007-03-10 0248-0255, 3 pos. in MPEC 2007-E41, confirmation
Sabino Canyon Obs. [854]
2007-03-10 0645-0659, 6 pos. in MPEC 2007-E41, confirmation
Mt. John Obs. [474]
2007-03-10 0943-0948, 4 pos. in MPEC 2007-E41, confirmation
2007 DA (K07D00A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 113 meters per JPL H=22.39, MPC H=22.4
JPL classifies 2007 DA as an Apollo and calculates an Earth MOID of 0.020037 AU (7.80 LD),
and reports this object will pass Earth at 9.8 LD on 12 Feb. 2008 at about 0658 UT.
Lowell Observatory reports 2007 DA has an MOID of 0.02796 AU (10.88 LD) with Venus.
Observations are reported from the following observatories in MPEC 2007-E36:
Mt. Lemmon Survey (MLS) [G96]
2007-03-09 0711-0736, 4 pos. in MPEC 2007-E36, follow-up
See also information from the week ending 4 March 2007.
2007 EC (K07E00C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 117 meters per JPL H=22.31, MPC H=22.3
JPL classifies 2007 EC as an Aten and calculates an Earth MOID of 0.024186 AU (9.41 LD).
Observations are reported from the following observatories in MPEC 2007-E24:
NEAT's Mt. Palomar telescope [644]
2007-03-02 0853-0952, 3 pos. in MPEC 2007-E24, discovery (*)
CEAMIG-REA [I77]
2007-03-03 0311-0331, 3 pos. in MPEC 2007-E24, confirmation
Farpoint Obs. [734]
2007-03-08 0643-0654, 3 pos. in MPEC 2007-E24, confirmation
Table Mountain Obs. [673{5}] coded to Jim Young
2007-03-08 0730-0748, 5 pos. in MPEC 2007-E24, confirmation
Mt. John Obs. [474]
2007-03-08 1054-1126, 5 pos. in MPEC 2007-E24, confirmation
2007 CQ5 (K07C05Q) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 124 meters per JPL H=22.18, MPC H=22.2
This object was listed from 8 until 11 Feb. 2007 as an impact risk.
JPL classifies 2007 CQ5 as an Amor and calculates an Earth MOID of 0.115350 AU (44.88 LD).
Lowell Observatory reports 2007 CQ5 has an MOID of 0.03179 AU (12.37 LD) with Mars.
Observations are reported from the following observatories in MPEC 2007-E23:
SZTE Asteroid Program [461]
2007-03-07 0228-0241, 3 pos. in MPEC 2007-E23, follow-up
See also information from the week ending 4 March 2007.
2007 DX60 (K07D60X) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 125 meters per JPL H=22.16, MPC H=22.1
JPL classifies 2007 DX60 as an Amor and calculates an Earth MOID of 0.204161 AU (79.44 LD).
Observations are reported from the following observatories in MPEC 2007-E50:
Spacewatch 1.8m telescope [291]
2007-03-10 0359-0410, 3 pos. in MPEC 2007-E50, follow-up
See also information from the week ending 4 March 2007.
2006 UQ17 (K06U17Q) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 143 meters per JPL H=21.87, MPC H=21.9 -- not small
This object was listed from 21 until 22 Oct. 2006 as an impact risk.
JPL classifies 2006 UQ17 as an Apollo and calculates an Earth MOID of 0.022314 AU (8.68 LD),
and reports this object passed Earth at 11.3 LD on 2 Jan. 2007.
Lowell Observatory reports 2006 UQ17 has an MOID of 0.00852 AU (3.32 LD) with Mars.
Observations are reported from the following observatories in MPECs 2007-E25 and 2007-E36:
NEAT's Mt. Palomar telescope [644]
2007-03-08 0612-0713, 6 pos. in MPEC 2007-E25, follow-up
2007-03-09 0622-0721, 3 pos. in MPEC 2007-E36, follow-up
See also information from the week ending 25 Feb. 2007.
48+120 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]
Observations of 19 small objects were reported during the last 168 hours:
2007 BD, 2007 BS2, 2007 CQ5, 2007 CT26, 2007 CX50, 2007 DA, 2007 DB61,
2007 DH8, 2007 DJ, 2007 DQ40, 2007 DX, 2007 DX60, 2007 EC, 2007 EG, 2007 EH,
2007 EK, 2007 EO, 2007 EU & 2007 EV, as well as almost-small 2006 UQ17
in MPECs:
2007-E13 time-stamped 2007 Mar. 5, 07:09 UT - Daily Orbit Update
2007-E14 time-stamped 2007 Mar. 6, 07:06 UT - Daily Orbit Update
2007-E22 time-stamped 2007 Mar. 7, 07:05 UT - Daily Orbit Update
2007-E23 time-stamped 2007 Mar. 8, 07:05 UT - Daily Orbit Update
2007-E24 time-stamped 2007 Mar. 8, 11:57 UT - 2007 EC
2007-E25 time-stamped 2007 Mar. 9, 07:05 UT - Daily Orbit Update
2007-E33 time-stamped 2007 Mar. 10, 00:30 UT - 2007 EG
2007-E34 time-stamped 2007 Mar. 10, 02:03 UT - 2007 EH
2007-E36 time-stamped 2007 Mar. 10, 07:06 UT - Daily Orbit Update
2007-E37 time-stamped 2007 Mar. 10, 12:16 UT - 2007 EK
2007-E41 time-stamped 2007 Mar. 10, 12:26 UT - 2007 EO
2007-E44 time-stamped 2007 Mar. 11, 00:08 UT - 2007 EU
2007-E45 time-stamped 2007 Mar. 11, 00:10 UT - 2007 EV
2007-E50 time-stamped 2007 Mar. 11, 07:07 UT - Daily Orbit Update
Date & times for other sources that were parsed to compile this page:
JPL Close Approaches, downloaded at 2007 March 11, 1528 UTC
JPL NEO Orbital Elements, downloaded at 2007 March 11, 1735 UTC
Lowell Observatory Orbit intersections, time-stamped 2007 Mar 11 2100:21 UTC
MPC NEA.DAT from MPC mirror, downloaded at 2007 March 11, 1527 UTC
Risk monitoring sites, as of A/CC's check at 2007 March 11, 2359 UTC (see CRT page)
Some observation sets have MPEC codes in parentheses, such as (*) denoting discovery.
Viewing Opportunities for Small Objects [ news | size order | alpha order | top ]
This compilation shows 36 small objects as being currently in view,
including 18 not reported in the last seven days.
Viewing by date order - see this list also by designation order
Object View until MOID AU Dia H Arc Notes (calc date)
---------- ---------- -------- --- ----- --- - -----------------------
2003 DZ15 2007-03-13 0.000169 121 22.23 25 - past obs. (3 Jan.)
2007 CT26 2007-03-13 0.002419 72 23.36 24 - was risk listed (9 March)
2007 EK 2007-03-14 0.001331 4 29.55 2 - risk listed (11 March)
2006 YH14 2007-03-15 0.091095 78 23.19 56 - past obs. (22 Feb.)
2007 CX50 2007-03-15 0.016044 40 24.65 22 - (10 March)
2007 CH15 2007-03-16 0.104052 151 21.76 17 - past obs. (26 Feb.)
2007 DJ 2007-03-17 0.018031 47 24.31 17 - was risk listed (7 March)
2007 DA 2007-03-17 0.020037 113 22.39 21 - (10 March)
2007 CB27 2007-03-18 0.062822 79 23.16 10 - past obs. (26 Feb.)
2007 EV 2007-03-18 0.005127 31 25.18 1 - risk listed (11 March)
2004 FA5 2007-03-19 0.024584 37 24.83 5 - faint recov. poss. (10 Feb.)
2007 DQ40 2007-03-19 0.012716 85 22.99 13 - (8 March)
2004 BK11 2007-03-20 0.279416 106 22.52 29 - faint recov. poss. (3 Dec.)
2007 BS2 2007-03-22 0.134863 76 23.24 52 - (11 March)
2006 UQ17 2007-03-23 0.022314 143 21.87 162 - was risk listed (10 March)
2007 EG 2007-03-23 0.008790 39 24.70 2 - (11 March)
2007 DD 2007-03-25 0.005918 24 25.75 15 - was risk listed, past obs. (4 March)
2000 PN8 2007-03-26 0.079762 127 22.13 26 - bright recov. poss. (3 Dec.)
2004 FD 2007-03-26 0.015803 83 23.06 5 - (3 Jan.)
2007 DB61 2007-03-27 0.013587 70 23.43 8 - (7 March)
2007 DH8 2007-03-28 0.070908 35 24.92 16 - (10 March)
2007 EU 2007-03-28 0.030627 39 24.67 1 - (11 March)
2005 ES70 2007-03-30 0.051839 66 23.56 7 - faint recov. poss. (3 Jan.)
2006 UX1 2007-04-04 0.259858 128 22.11 6 - past obs. (10 Feb.)
2002 EW8 2007-04-14 0.042496 68 23.50 38 - faint recov. poss. (10 Feb.)
2007 DX60 2007-04-14 0.204161 125 22.16 17 - (11 March)
2005 GR33 2007-04-17 0.011936 132 22.04 12 - faint recov. poss. (10 Feb.)
2006 YD12 2007-04-19 0.044509 101 22.63 60 - past obs. (22 Feb.)
2006 BA9 2007-04-20 0.072674 91 22.86 32 - faint recov. poss., past obs. (10 Feb.)
2004 RE84 2007-04-26 0.019895 132 22.05 28 - bright recov. poss. (10 Feb.)
2007 DX 2007-04-30 0.213683 87 22.95 20 - (10 March)
1995 SB 2007-05-05 0.279024 123 22.20 12 - faint recov. poss. (3 Jan.)
2007 EC 2007-05-09 0.024186 117 22.31 6 - (7 March)
2007 BC8 2007-05-26 0.039504 120 22.25 33 - past obs. (27 Feb.)
2007 EO 2007-06-11 0.039389 97 22.71 1 - (11 March)
2007 CQ5 2007-06-21 0.115350 124 22.18 28 - was risk listed (8 March)
Coming into view soon:
2000 HO40 2007-05-20 0.039459 124 22.19 10 - >12 March, faint recov. poss. (10 Feb.)
Viewing by designation order - see also Viewing by date order
Object View until MOID AU Dia H Arc Notes (calc date)
---------- ---------- -------- --- ----- --- - -----------------------
2007 EV 2007-03-18 0.005127 31 25.18 1 - risk listed (11 March)
2007 EU 2007-03-28 0.030627 39 24.67 1 - (11 March)
2007 EO 2007-06-11 0.039389 97 22.71 1 - (11 March)
2007 EK 2007-03-14 0.001331 4 29.55 2 - risk listed (11 March)
2007 EG 2007-03-23 0.008790 39 24.70 2 - (11 March)
2007 EC 2007-05-09 0.024186 117 22.31 6 - (7 March)
2007 DB61 2007-03-27 0.013587 70 23.43 8 - (7 March)
2007 DX60 2007-04-14 0.204161 125 22.16 17 - (11 March)
2007 DQ40 2007-03-19 0.012716 85 22.99 13 - (8 March)
2007 DH8 2007-03-28 0.070908 35 24.92 16 - (10 March)
2007 DX 2007-04-30 0.213683 87 22.95 20 - (10 March)
2007 DJ 2007-03-17 0.018031 47 24.31 17 - was risk listed (7 March)
2007 DD 2007-03-25 0.005918 24 25.75 15 - was risk listed, past obs. (4 March)
2007 DA 2007-03-17 0.020037 113 22.39 21 - (10 March)
2007 CX50 2007-03-15 0.016044 40 24.65 22 - (10 March)
2007 CB27 2007-03-18 0.062822 79 23.16 10 - past obs. (26 Feb.)
2007 CT26 2007-03-13 0.002419 72 23.36 24 - was risk listed (9 March)
2007 CH15 2007-03-16 0.104052 151 21.76 17 - past obs. (26 Feb.)
2007 CQ5 2007-06-21 0.115350 124 22.18 28 - was risk listed (8 March)
2007 BC8 2007-05-26 0.039504 120 22.25 33 - past obs. (27 Feb.)
2007 BS2 2007-03-22 0.134863 76 23.24 52 - (11 March)
2006 YH14 2007-03-15 0.091095 78 23.19 56 - past obs. (22 Feb.)
2006 YD12 2007-04-19 0.044509 101 22.63 60 - past obs. (22 Feb.)
2006 UQ17 2007-03-23 0.022314 143 21.87 162 - was risk listed (10 March)
2006 UX1 2007-04-04 0.259858 128 22.11 6 - past obs. (10 Feb.)
2006 BA9 2007-04-20 0.072674 91 22.86 32 - faint recov. poss., past obs. (10 Feb.)
2005 GR33 2007-04-17 0.011936 132 22.04 12 - faint recov. poss. (10 Feb.)
2005 ES70 2007-03-30 0.051839 66 23.56 7 - faint recov. poss. (3 Jan.)
2004 RE84 2007-04-26 0.019895 132 22.05 28 - bright recov. poss. (10 Feb.)
2004 FA5 2007-03-19 0.024584 37 24.83 5 - faint recov. poss. (10 Feb.)
2004 FD 2007-03-26 0.015803 83 23.06 5 - (3 Jan.)
2004 BK11 2007-03-20 0.279416 106 22.52 29 - faint recov. poss. (3 Dec.)
2003 DZ15 2007-03-13 0.000169 121 22.23 25 - past obs. (3 Jan.)
2002 EW8 2007-04-14 0.042496 68 23.50 38 - faint recov. poss. (10 Feb.)
2000 PN8 2007-03-26 0.079762 127 22.13 26 - bright recov. poss. (3 Dec.)
2000 HO40 2007-05-20 0.039459 124 22.19 10 - >12 March, faint recov. poss. (10 Feb.)
1995 SB 2007-05-05 0.279024 123 22.20 12 - faint recov. poss. (3 Jan.)
Out-of-view date based on MPES solar elongation <40° and/or magnitude V>22.0 at 1200 UT
geocentric. (Not factored in is any lunar interference with viewing.)
Objects are linked in the left-most column only if observed in the last seven days,
while objects with earlier small-object reporting are linked under "Notes."
Diameter ("Dia") is in meters, a very rough estimate from brightness (H).
Observing "Arc" is from MPES in days or number of oppositions.
"In view" does not necessarily mean locatable for objects with short arcs in prior years
and for which a large search or accidental rediscovery are the best hopes.
Small object observation cross index [ size order | 48 Hours | viewing | top ]
| Object | Observed by MPC code |
|---|
| 2006 UQ17 | 644 |
| 2007 BD | 084 |
| 2007 BS2 | 291 |
| 2007 CQ5 | 461 |
| 2007 CT26 | 291 |
| 2007 CX50 | G96 |
| 2007 DA | G96 |
| 2007 DB61 | 461 |
| 2007 DH8 | 291 |
| 2007 DJ | 118, 198, A48 |
| 2007 DQ40 | G96 |
| 2007 DX | 448 |
| 2007 DX60 | 291 |
| 2007 EC | 474, 644, 673, 734, I77 |
| 2007 EG | 213, 473, 595, 703, J69 |
| 2007 EH | 473, 595, 703, E12, I77, J77, J95 |
| 2007 EK | 291, 474, 691, 854, J95 |
| 2007 EO | 474, 854, E12, I77 |
| 2007 EU | 595, 703, A13 |
| 2007 EV | 703, A13, J95 |
|
| Code | Observatory | Objects Observed |
|---|
| 0841 | Pulkovo Obs. - 1 | 2007 BD |
| 118 | Modra Obs. | 2007 DJ |
| 198 | Wildberg Obs. | 2007 DJ |
| 213 | Montcabre Obs. | 2007 EG |
| 291 | Spacewatch 1.8m telescope | 2007 BS2, 2007 CT26, 2007 DH8, 2007 DX60, 2007 EK |
| 448 | Desert Moon Obs. | 2007 DX |
| 461 | SZTE Asteroid Program | 2007 CQ5, 2007 DB61 |
| 473 | Remanzacco Obs. | 2007 EG, 2007 EH |
| 474 | Mt. John Obs. | 2007 EC, 2007 EK, 2007 EO |
| 595 | Farra d'Isonzo Obs. | 2007 EG, 2007 EH, 2007 EU |
| 644 | NEAT's Mt. Palomar telescope | 2006 UQ17, 2007 EC |
| 6735 | Table Mtn. Obs. - Jim Young | 2007 EC |
| 691 | Spacewatch 0.9m telescope | 2007 EK |
| 703 | Catalina Sky Survey | 2007 EG, 2007 EH, 2007 EU, 2007 EV |
| 734 | Farpoint Obs. | 2007 EC |
| 854 | Sabino Canyon Obs. | 2007 EK, 2007 EO |
| A13 | Naef Obs. | 2007 EU, 2007 EV |
| A48 | Verona Obs. | 2007 DJ |
| E12 | Siding Spring Survey | 2007 EH, 2007 EO |
| G96 | Mt. Lemmon Survey | 2007 CX50, 2007 DA, 2007 DQ40 |
| I77 | CEAMIG-REA | 2007 EC, 2007 EH, 2007 EO |
| J69 | North Obs. | 2007 EG |
| J77 | Golden Hill Obs. | 2007 EH |
| J95 | Great Shefford Obs. | 2007 EH, 2007 EK, 2007 EV |
|
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