Contents  on 1 July '10


The latest A/CC news is available via framed access, RSS news feed 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 1 July '10

The MPC's NEO Confirmation Page has 6 listings: 3 new, 3 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new and three updated listings. So far The Tracking News has counted a total of seven 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 1 July '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-N02 - "11:39 UT" - 2010 MR87

<< DOU on 1 July '10 >>  MPEC 2010-N01 - "06:08 UT" - Daily Orbit Update

Observers  on 1 July '10

Nine observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 12 in MPECs 2010-N01 & 2010-N02 -- 2010 MY1, 2010 MW1, 2010 MR87, 2010 MQ, 2010 MP1, 2010 MH1, 2010 MF1, 2010 LM68, 2010 LL34, 2010 LK61, 2010 EV45, 2009 WC26
B75Betelgeuse Station in Italy, 5 in MPEC 2010-N01 -- 2009 ST19, 2009 SM103, 2009 NA, 2009 KC3, 3200
B09Capannoli Obs. in Italy, 3 in MPEC 2010-N01 -- 2010 CJ171, 54789, 3752
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-N01 -- 2010 EH20
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 1 in MPEC 2010-N01 -- 2010 MJ1
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2010-N01 -- 2002 NE71
H36Sandlot Obs. in Kansas, 1 in MPEC 2010-N02 -- 2010 MR87
6735Jim Young via Table Mtn. Obs. in southern California, 6 in MPECs 2010-N01 & 2010-N02 -- 2010 MY1, 2010 MR87, 2010 MQ, 2010 MG1, 2010 EH20, 2010 CJ171
C51WISE in Earth polar orbit, 43 in MPECs 2010-N01 & 2010-N02 -- 2010 MR87, 2010 GA7, 2010 FG81, 2010 EX119, 2010 EH43, 2010 DW1, 2010 DJ56, 2010 CD19, 2010 AH30, 2010 AE, 2010 AB78, 2009 XE11, 2009 WN, 2009 WC26, 2009 UX17, 2009 UV18, 2009 KD5, 2008 EY5, 2008 CN1, 2007 RM133, 2007 FE1, 2007 BM8, 2005 YY93, 2004 YR32, 2002 YF4, 2002 XG4, 2001 HA4, 1996 GQ, 1995 SA, 90367, 68350, 68216, 230111, 19764, 17182, 163243, 153814, 152941, 137924, 5646, 5645, 3691, 887
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 1 July '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2358 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.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) risk pages.





Notes for Today's Latest Risk Assessments
153814 2001 WN5NEODyS14292106-211541.51e-10-6.89-7.200NEODyS: "Based on 225 optical observations (of which 4 are rejected as outliers) from 1996/02/10.397 to 2010/06/26.811."

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 1 July '10

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

1429Noted that NEODyS has updated its 153814 2001 WN5 risk assessment - see above
Grabbed MPEC 2010-N01 - Daily Orbit Update - see above
Grabbed MPEC 2010-N02 - 2010 MR87 - see above