Contents  on 3 July '09


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 3 July '09

The MPC's NEO Confirmation Page has 4 listings: 4 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four updated listings. Of these, one was a "one nighter."

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 July '09

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 3 July '09 >>  MPEC 2009-N08 - "06:07 UT" - Daily Orbit Update

Observers  on 3 July '09

Eight observing facilities appear in today's MPEC.

CodeObserver / observatory
I21El Condor Obs. in Argentina, 2 in MPEC 2009-N08 -- 2009 MC9, 2001 FE90
F651UKAPP in Northern Ireland via Faulkes Telescope North in Hawaii, 2 in MPEC 2009-N08 -- 2009 MN8, 2009 DH39
168Kourovskaya Obs. in Russia, 12 in MPEC 2009-N08 -- 89830, 66251, 35107, 189700, 188452, 16960, 164400, 137170, 8567, 4544, 3103, 1620
704LINEAR in New Mexico, 6 in MPEC 2009-N08 -- 2002 LV, 54401, 215442, 184990, 163758, 108906
J75La Sagra Obs. in Spain, 3 in MPEC 2009-N08 -- 2009 NA, 2005 MC, 1943
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2009-N08 -- 2009 LU2
A13Naef Obs. in Switzerland, 2 in MPEC 2009-N08 -- 2009 NA, 15745
D29Purple Mtn. Obs. XuYi Station in China, 1 in MPEC 2009-N08 -- 24761
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 3 July '09

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. Beginning Jan. 22nd, both are also posting impact solutions beyond 100 years for a few 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
2009 NAJPL Sentry1442R E M O V E DJPL: Risk listing removed at 0845 UTC.
2009 LU2NEODyS1442R E M O V E D-

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 3 July '09

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

1442Noted that NEODyS has removed 2009 LU2 as an impact risk - see above
Noted that JPL Sentry has removed 2009 NA as an impact risk - see above
Grabbed MPEC 2009-N08 - Daily Orbit Update - see above