Contents  on 11 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 11 July '09

The MPC's NEO Confirmation Page has 1 listing: 1 new

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new listing. This 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 11 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 11 July '09 >>  MPEC 2009-N35 - "06:06 UT" - Daily Orbit Update

Observers  on 11 July '09

Eight observing facilities appear in today's MPEC.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 24 in MPEC 2009-N35 -- 2009 NE, 2009 NA, 2009 MZ6, 2009 MX6, 2009 LS, 2009 KL2, 2009 KJ22, 2009 KD5, 2009 KC7, 2009 HB82, 2009 ED1, 2009 DN1, 2008 CM, 2007 YK, 2006 MD12, 2006 LF, 2005 MC, 2002 NW16, 2002 LV, 2001 AA50, 2000 OB22, 52750, 162483, 4034
E16Grove Creek Obs. in New South Wales, 2 in MPEC 2009-N35 -- 2009 MA, 4015
511Haute Provence Obs. in Germany, 2 in MPEC 2009-N35 -- 2009 MZ6, 2009 MN8
204Schiaparelli Obs. in Italy, 4 in MPEC 2009-N35 -- 2009 MX6, 2009 KD5, 2004 LC2, 216523
B76Schonfeld Obs. in Germany, 1 in MPEC 2009-N35 -- 15745
B40Skylive Obs. in Italy, 1 in MPEC 2009-N35 -- 2009 NE
I19Tanti Obs. in Argentina, 1 in MPEC 2009-N35 -- 2009 MB9
D25Tzec Maun Obs. Pingelly in Western Australia, 1 in MPEC 2009-N35 -- 2001 FE90
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 11 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 MB9NEODyS1441R E M O V E D-
JPL Sentry1441R E M O V E DJPL: Risk listing removed at 0850 UTC.

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 11 July '09

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

2201Noted that the NEOCP has become active
1636Grabbed MPEC 2009-N35 - Daily Orbit Update - see above
1441Noted that JPL Sentry has removed 2009 MB9 as an impact risk - see above
Noted that NEODyS has removed 2009 MB9 as an impact risk - see above