Contents on 7 May '12
- Traffic Report -- no objects
- IAU Minor Planet Center
- Observers -- three observers
- Impact Risk Monitoring -- three objects
Asteroid/Comet Connection (A/CC) Resources:
- Consolidated Risk Tables - the CRT page (archive)
Of 454 risk-listed objects, 28 have had news in the last 31 days. Updated at 1555 UTC on 7 May.
- Ephemerides for risk-rated & nearby objects + potential mission destinations
- News image catalog
- News old archive & Small Objects Archive
- Object Links - mainly for radar targets & close passers - updated 5 May
- Observing Campaigns
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.
Traffic Report on 7 May '12
No objects reported inside ten LD
No asteroids are reported traveling within ten lunar distances (LD) of our planet today. Next up, 2010 KK37 arrives inside ten LD on May 15th.
This report was generated at 1558 UTC with follow-up in today's DOU MPEC for 2012 HD25.
Notes: Ten times the distance to the Moon (ten LD) has no astronomical significance but is a useful reporting boundary. Object distances are interpreted by A/CC from JPL Horizons data. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.
NEOCP Activity on 7 May '12
The MPC's NEO Confirmation Page is currently empty
The NEOCP is currently empty and hasn't been noted by The Tracking News as being active yet today (checked at 2322 UTC). It was last noted active on May 4th.
New MPECs on 7 May '12
Minor Planet Electronic Circulars
As of last check at 2322 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- Observations of recently (no longer) risk-listed objects
- K12H08M 2012 HM8 (small asteroid, Q=4.722 AU, arc=14 days, H=24.0 ~54m) from Schiaparelli Obs. (May 2.92-93p3)
- K12H08G 2012 HG8 (Q=4.244 AU, arc=17 days, H=19.8 ~371m) from Schiaparelli Obs. (May 6.97-99p2)
- Observations of close-passing objects
- K12H25D 2012 HD25 (arc=6 days, H=23.5 ~68m) from Schiaparelli Obs. (May 2.95-97p2)
- Observations of almost-small asteroids (21.7<H<=22.0)
- K10K07X 2010 KX7 (arc=3 opp, H=21.8 ~148m) from New Millennium Obs. (May 3.08-09p3)
- K03WG6H 2003 WH166 (arc=2 opp, H=22.0 ~135m) from Schiaparelli Obs. (May 2.88-89p3 & 7.03-04p3)
- Observations of other asteroidal objects
- K12H31G 2012 HG31 (arc=20 days, H=18.9 ~562m) from Schiaparelli Obs. (May 3.06-08p2)
- K12H02N 2012 HN2 (arc=15 days, H=19.8 ~371m) from Schiaparelli Obs. (May 2.99-01p3)
- K12G11X 2012 GX11 (arc=21 days, H=21.1 ~204m) from Schiaparelli Obs. (May 4.01-04p3)
- K12F23Y 2012 FY23 (arc=41 days, H=20.0 ~339m) from New Millennium Obs. (May 3.10p3)
- K11WD4V 2011 WV134 (Q=4.676 AU, arc=3 opp, H=17.1 ~1.29 km) from New Millennium Obs. (May 3.10p3) and Schiaparelli Obs. (May 7.11p5)
- K09H58U 2009 HU58 (q=0.187 AU, arc=2 opp, H=19.1 ~513m) from Schiaparelli Obs. (May 3.90-95p3)
- K04V00B 2004 VB (arc=4 opp, H=20.8 ~234m) from Schiaparelli Obs. (May 3.03-04p3)
- K02J09C 2002 JC9 (q=0.381 AU, Q=4.120 AU, arc=3 opp, H=18.4 ~708m) from Schiaparelli Obs. (May 2.86-87p3)
- K00J06B 2000 JB6 (arc=5 opp, H=18.9 ~562m) from Schiaparelli Obs. (May 7.06-07p2)
- W2966 322966 2002 KF4 from New Millennium Obs. (May 3.10p2)
- I6823 186823 2004 FN32 from New Millennium Obs. (May 3.08-11p4)
- G3000 163000 2001 SW169 from Schiaparelli Obs. (May 6.93-95p2)
- 66272 66272 1999 JW6 from New Millennium Obs. (May 3.09-13p4)
- 53110 53110 1999 AR7 from New Millennium Obs. (May 3.09p2)
- 35670 35670 1998 SU27 from NEAT's Mt. Palomar telescope (2002 Feb. 7.12-14p3)
Observers on 7 May '12
Three observers appear in today's MPEC.
|Code||Observer / observatory|
|644||NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2012-J20 -- 35670|
|A24||New Millennium Obs. in Italy, 7 in MPEC 2012-J20 -- 2012 FY23, 2011 WV134, 2010 KX7, 66272, 53110, 322966, 186823|
|204||Schiaparelli Obs. in Italy, 13 in MPEC 2012-J20 -- 2012 HN2, 2012 HM8, 2012 HG8, 2012 HG31, 2012 HD25, 2012 GX11, 2011 WV134, 2009 HU58, 2004 VB, 2003 WH166, 2002 JC9, 2000 JB6, 163000|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 7 May '12
Notes for Today's Latest Risk Assessments
|2012 HP13||NEODyS||1555||2077-2090||6||1.18e-07||-6.69||-7.2||0||NEODyS: "Based on 195 optical observations (of which 17 are rejected as outliers) from 2012-04-22.461 to 2012-04-27.837."|
|2012 HG2||NEODyS||1555||2053-2090||262||1.3e-03||-4.08||-4.88||0||NEODyS: "Based on 152 optical observations (of which 9 are rejected as outliers) from 2012-04-20.372 to 2012-05-04.279."|
|2009 VZ39||JPL Sentry||0512||2012-2110||792||7.0e-06||-6.11||-6.90||0||JPL: "Analysis based on 8 observations spanning .04342 days (2009-Nov-10.27204 to 2009-Nov-10.31546)." Diameter approximately 0.009 km. from mean, weighted H=27.9.|
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 7 May '12
Times are UTC for when items were noted or added by The Tracking News.
|1558||Generated Traffic Report|
|1555||Noted that NEODyS has updated its 2012 HG2 risk assessment - see above|
Noted that NEODyS has reposted 2012 HP13 as an impact risk - see above
Grabbed MPEC 2012-J20 - Daily Orbit Update - see above
|0512||Noted that JPL Sentry has updated its 2009 VZ39 risk assessment - see above|