Contents on 17 August '10
- IAU Minor Planet Center
- Observers -- nine observing facilities
- Impact Risk Monitoring -- two objects
- Consolidated Risk Tables - the CRT page
Of 323 risk-listed objects, 13 have had news in the last month. Updated at 1438 UTC.
- Earth's Busy Neighborhood Traffic Report
No objects are known to be within ten LD of Earth today. Updated at 0110 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 17 August '10
The MPC's NEO Confirmation Page has 4 listings: 3 new, 1 updated
When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new and one updated listings. Of these, two were "one nighters."
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 17 August '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-Q07 time-stamped "06:12 UT" - Daily Orbit Update - see below
- MPEC 2010-Q08 time-stamped "20:26 UT" - P/2003 S2 (NEAT) = P/2010 P5
MPEC 2010-Q08 - "20:26 UT" - P/2003 S2 (NEAT) = P/2010 P5
- PK10P050 P/2010 P5 (q=2.456 AU, Q=5.218 AU, TP=2011 Mar. 3.18648 TT) from RAS Obs. Mayhill (Aug. 15.31-35p3 & 17.34-36p2)
- PK03S020 P/2003 S2 (NEAT) (q=2.457 AU, Q=5.208 AU, TP=2003 Sept. 7.29180 TT)
- Observations of risk-listed objects
- K10P65S 2010 PS65 (small asteroid, Q=4.709 AU, arc=3 days, H=24.6 ~41m) from Astronomical Research Obs. Westfield (Aug. 16.26-27p4)
- Observations of small asteroids (H>22.0)
- K10C55B 2010 CB55 (arc=188 days, H=22.6 ~102m) from Castelmartini Obs. (Aug. 15.96p3)
- Observations of other objects
- K10P22Y 2010 PY22 (arc=8 days, H=19.2 ~490m) from Balzaretto Obs. (Aug. 15.83-84p4) and Castelmartini Obs. (Aug. 15.90-91p3)
- K10OA1N 2010 ON101 (arc=17 days, H=20.5 ~269m) from Bigmuskie Obs. (Aug. 16.81-84p3)
- K10N01G 2010 NG1 (arc=39 days, H=20.4 ~282m) from David Tholen's team on Mauna Kea (July 14.37p2)
- K10M87R 2010 MR87 (arc=55 days, H=19.3 ~467m) from Tholen team/Mauna Kea (July 14.38p2) and ARO Westfield (Aug. 16.11-13p3)
- K10M01F 2010 MF1 (arc=58 days, H=19.6 ~407m) from Castelmartini Obs. (Aug. 15.84-85p3)
- K10K39Y 2010 KY39 (arc=90 days, H=20.8 ~234m) from ARO Westfield (Aug. 16.32-35p4)
- K10J00E 2010 JE (Q=4.602 AU, arc=105 days, H=20.2 ~309m) from ARO Westfield (Aug. 16.08-10p4)
- K10F92O 2010 FO92 (arc=149 days, H=20.0 ~339m) from Castelmartini Obs. (Aug. 15.85-86p3)
- K09C05Q 2009 CQ5 (arc=2 opp, H=17.6 ~1.02 km) from Santa Mama Obs. (Aug. 15.83-84p3 & 16.81p3)
- K02N71E 2002 NE71 (arc=2 opp, H=19.4 ~446m) from Castelmartini Obs. (Aug. 15.93-94p3)
- K00P27Q 2000 PQ27 (arc=2 opp, H=19.7 ~389m) from Mt. John Obs. (July 14.57-59p7)
- E3381 143381 2003 BC21 from Castelmartini Obs. (Aug. 15.95-96p3)
- D8404 138404 2000 HA24 from La Sagra Obs. (Aug. 15.98-01p3)
Observers on 17 August '10
Nine observing facilities appear in today's MPECs.
|Code||Observer / observatory|
|H21||Astronomical Research Obs. Westfield in Illinois, 4 in MPEC 2010-Q07 -- 2010 PS65, 2010 MR87, 2010 KY39, 2010 JE|
|A81||Balzaretto Obs. in Italy, 1 in MPEC 2010-Q07 -- 2010 PY22|
|B88||Bigmuskie Obs. in Italy, 1 in MPEC 2010-Q07 -- 2010 ON101|
|160||Castelmartini Obs. in Italy, 6 in MPEC 2010-Q07 -- 2010 PY22, 2010 MF1, 2010 FO92, 2010 CB55, 2002 NE71, 143381|
|J75||La Sagra Obs. in Spain, 1 in MPEC 2010-Q07 -- 138404|
|5682||David Tholen's team on Mauna Kea in Hawaii, 2 in MPEC 2010-Q07 -- 2010 NG1, 2010 MR87|
|474||Mt. John Obs. in New Zealand, 1 in MPEC 2010-Q07 -- 2000 PQ27|
|H06||RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-Q08 -- P/2010 P5|
|B38||Santa Mama Obs. in Italy, 1 in MPEC 2010-Q07 -- 2009 CQ5|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 17 August '10
Notes for Today's Latest Risk Assessments
|2010 PR66||NEODyS||1438||2015-2089||8||6.43e-08||-4.13||-4.36||0||NEODyS: "Based on 40 optical observations (of which 0 are rejected as outliers) from 2010/08/15.266 to 2010/08/16.841."|
|2010 PS65||JPL Sentry||1438||2102||1||1.5e-05||-4.93||-4.93||0||JPL: "Analysis based on 23 observations spanning 2.9758 days (2010-Aug-13.29423 to 2010-Aug-16.27007)." Diameter approximately 0.042 km. from mean, weighted H=24.5.|
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 17 August '10
Times are UTC for when items were noted or added by The Tracking News.
|2104||Grabbed MPEC 2010-Q08 - P/2003 S2 (NEAT) = P/2010 P5 - see above|
|1438||Noted that NEODyS has posted 2010 PR66 as an impact risk - see above|
Noted that JPL Sentry has updated its 2010 PS65 risk assessment - see above
Grabbed MPEC 2010-Q07 - Daily Orbit Update - see above