Contents on 3 June '10
- IAU Minor Planet Center
- Observers -- eleven observing facilities
- Impact Risk Monitoring -- one object
- Consolidated Risk Tables - the CRT page
Of 325 risk-listed objects, 31 have had news in the last month. Updated at 1440 UTC.
- Earth's Busy Neighborhood Traffic Report
Two objects are known to be within ten LD of Earth today. Updated at 1628 UTC.
- Ephemerides for risk-rated and nearby objects
- News image catalog
- Old & new CRT Archive
- Old News Archive & Small Objects Archive
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 '10
The MPC's NEO Confirmation Page has 15 listings: 9 new, 6 updated
When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had nine new and six updated listings. Of these, six were "one nighters." So far The Tracking News has counted a total of sixteen listings on the NEOCP at some point today.
To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.
New MPECs on 3 June '10
Minor Planet Electronic Circulars
As of last check at 2358 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2010-L10 time-stamped "06:08 UT" - Daily Orbit Update - see below
- MPEC 2010-L11 time-stamped "20:25 UT" - 2010 LF
MPEC 2010-L11 - "20:25 UT" - 2010 LF
- K10L00F 2010 LF (small asteroid, H=23.8 ~59m) was discovered at 0709 UT on 2 June by the Catalina Sky Survey (CSS), which observed it at June 2.30-34p7. The discovery was confirmed by Great Shefford Obs. (June 2.91-93p3), Sandlot Obs. (June 3.22-23p3), Sabino Canyon Obs. (June 3.23-24p3), Tenagra II Obs. (June 3.37p3), Tzec Maun Obs. Mayhill (June 3.38-40p4), and Kevin Hills via RAS Obs. Moorook (June 3.55p3).
- Observations of risk-listed objects
- K10K10R 2010 KR10 (arc=10 days, H=19.4 ~446m) from Richard Miles via Faulkes Telescope North (May 25.56p6)
- Observations of recently (no longer) risk-listed objects
- K10K00Q 2010 KQ (small asteroid, arc=17 days, H=29.6 ~4m) from Miles/Faulkes North (June 2.58p6)
- K10J88E 2010 JE88 (arc=19 days, H=21.5 ~170m) from Astronomical Research Obs. Westfield (June 2.10-12p3)
- K10J33L 2010 JL33 (Q=4.631 AU, arc=27 days, H=17.7 ~977m) from ARO Westfield (June 2.13-14p3)
- Observations of small asteroids (H>22.0)
- K10K10P 2010 KP10 (arc=13 days, H=23.4 ~71m) from the Spacewatch 1.8m telescope (June 2.35-37p3)
- K10J71O 2010 JO71 (arc=17 days, H=23.9 ~56m) from Miles/Faulkes North (May 25.56-57p2)
- Observations of almost-small asteroids (21.7<H<=22.0)
- K10K00D 2010 KD (arc=18 days, H=21.9 ~141m) from Great Shefford Obs. (June 2.97-99p3)
- Observations of other objects
- K10K61B 2010 KB61 (i=44.5°, arc=6 days, H=20.6 ~257m) from Spacewatch 1.8m (June 2.24-27p6)
- K10JF3V 2010 JV153 (arc=27 days, H=20.0 ~339m) from Spacewatch 1.8m (June 2.32-34p3)
- K10J87G 2010 JG87 (q=0.145 AU, Q=5.406 AU, arc=22 days, H=19.2 ~490m) from Great Shefford Obs. (June 3.00-02p3)
- K10J41K 2010 JK41 (Q=4.301 AU, arc=23 days, H=20.1 ~323m) from ARO Westfield (June 2.08-09p4)
- K10J00F 2010 JF (i=43.8°, arc=29 days, H=19.3 ~467m) from ARO Westfield (June 2.16-19p3)
- K10J00E 2010 JE (Q=4.607 AU, arc=30 days, H=20.1 ~323m) from ARO Westfield (June 2.12-14p3) and Spacewatch 1.8m (June 2.23p3 at V=22.2)
- K10G07T 2010 GT7 (Q=4.569 AU, arc=56 days, H=20.2 ~309m) from ARO Westfield (June 2.16-20p3 at V=21.9-22.1)
- K10CH1J 2010 CJ171 (arc=108 days, H=21.0 ~214m) from CSS (June 2.32-34p4)
- K09K05D 2009 KD5 (arc=3 opp, H=18.4 ~708m) from Doc Greiner Research Obs. (DGRO) (June 1.15-16p4)
- K07J20Z 2007 JZ20 (i=40.5°, arc=3 opp, H=18.5 ~676m) from CSS (June 2.32-34p4)
- J99M00N 1999 MN (q=0.225 AU, arc=3 opp, H=21.4 ~178m) from Great Shefford Obs. (June 3.09p3)
- F2671 152671 1998 HL3 from CSS (June 2.15-17p3)
- 66400 66400 1999 LT7 from CSS (June 2.25-29p4)
- 52750 52750 1998 KK17 from CSS (June 2.30-32p4)
- 20790 20790 2000 SE45 from CSS (June 1.15-17p4)
- 06050 6050 Miwablock (1992 AE) from CSS (June 2.24-26p4)
Observers on 3 June '10
Eleven observing facilities appear in today's MPECs.
|Code||Observer / observatory|
|H21||Astronomical Research Obs. Westfield in Illinois, 6 in MPEC 2010-L10 -- 2010 JL33, 2010 JK41, 2010 JF, 2010 JE88, 2010 JE, 2010 GT7|
|703||Catalina Sky Survey (CSS) in Arizona, 8 in MPECs 2010-L10 & 2010-L11 -- 2010 LF, 2010 CJ171, 2007 JZ20, 66400, 52750, 20790, 152671, 6050|
|H26||Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-L10 -- 2009 KD5|
|F656||Richard Miles in England via Faulkes Telescope North in Hawaii, 3 in MPEC 2010-L10 -- 2010 KR10, 2010 KQ, 2010 JO71|
|J95||Great Shefford Obs. in England, 4 in MPECs 2010-L10 & 2010-L11 -- 2010 LF, 2010 KD, 2010 JG87, 1999 MN|
|D90`||Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-L11 -- 2010 LF|
|854||Sabino Canyon Obs. in Arizona, 1 in MPEC 2010-L11 -- 2010 LF|
|H36||Sandlot Obs. in Kansas, 1 in MPEC 2010-L11 -- 2010 LF|
|291||Spacewatch 1.8m telescope in Arizona, 4 in MPEC 2010-L10 -- 2010 KP10, 2010 KB61, 2010 JV153, 2010 JE|
|926||Tenagra II Obs. in Arizona, 1 in MPEC 2010-L11 -- 2010 LF|
|H10||Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2010-L11 -- 2010 LF|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 3 June '10
Notes for Today's Latest Risk Assessments
|2010 KR10||JPL Sentry||1439||R E M O V E D||JPL: Risk listing removed at 0952 UTC.|
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.