Contents  on 7 November '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 7 November '09

The MPC's NEO Confirmation Page has 5 listings: 3 new, 2 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new and two updated listings. Of these, three 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 7 November '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 7 Nov. '09 >>  MPEC 2009-V23 - "07:07 UT" - Daily Orbit Update

Observers  on 7 November '09

Twelve observing facilities appear in today's MPEC.

CodeObserver / observatory
J16An Carraig Obs. in Northern Ireland, 3 in MPEC 2009-V23 -- 2009 UY19, 217807, 217796
H21Astronomical Research Obs. Westfield (ARO Westfield), 17 in MPEC 2009-V23 -- 2009 UY19, 2009 UX87, 2009 UW18, 2009 UQ, 2009 UM3, 2009 UL28, 2009 UK28, 2009 UE19, 2009 TM10, 2009 SV171, 2009 SP171, 2009 SG18, 2009 SF2, 2009 SC229, 2009 RN, 2009 NA, 2009 MX6
703Catalina Sky Survey (CSS) in Arizona, 11 in MPEC 2009-V23 -- 2009 TK8, 2009 TK12, 2009 HV44, 2009 HB, 38091, 20790, 185716, 154244, 136617, 3988, 3553
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2009-V23 -- 2009 UV18
448Desert Moon Obs. in New Mexico, 2 in MPEC 2009-V23 -- 2009 UX17, 2009 SC229
A27Eridanus Obs. in Germany, 1 in MPEC 2009-V23 -- 159402
J95Great Shefford Obs. in England, 1 in MPEC 2009-V23 -- 2009 UK20
379Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2009-V23 -- 2005 RQ6, 217796
704LINEAR in New Mexico, 4 in MPEC 2009-V23 -- 2009 TM10, 2008 JO, 218017, 3988
H06*Rolando Ligustri in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-V23 -- 2009 MX6
926Tenagra II Obs. in Arizona, 4 in MPEC 2009-V23 -- 2009 UX17, 2009 UM28, 2009 UK28, 54660
H47Vicksburg Obs. in Mississippi, 2 in MPEC 2009-V23 -- 5626, 3361
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 7 November '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 VANEODyS16232025-2047142.77e-05-5.91-5.920NEODyS: "Based on 10 optical observations (of which 0 are rejected as outliers) from 2009/11/06.259 to 2009/11/06.383."

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 7 November '09

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

1623Noted that NEODyS has posted 2009 VA as an impact risk - see above
Grabbed MPEC 2009-V23 - Daily Orbit Update - see above