Contents  on 13 November '09

Note: These A/CC news pages will probably not update again until sometime on Saturday, November 14th UTC.


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 13 November '09

The MPC's NEO Confirmation Page has 2 listings: 1 new, 1 updated

When last checked at 1435 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and one updated listing. Both of these 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 13 November '09

Minor Planet Electronic Circulars

As of last check at 1435 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 13 Nov. '09 >>  MPEC 2009-V66 - "07:09 UT" - Daily Orbit Update

Observers  on 13 November '09

Sixteen observing facilities appear in today's MPEC.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 10 in MPEC 2009-V66 -- 2009 VX, 2009 VW, 2009 VS25, 2009 VS, 2009 VP, 2009 VA1, 2009 UY19, 2009 UP5, 2009 UE19, 2009 RM
J51Atlante Obs. in the Canary Islands, 1 in MPEC 2009-V66 -- 2005 RQ6
A81Balzaretto Obs. in Italy, 1 in MPEC 2009-V66 -- 217796
160Castelmartini Obs. in Italy, 4 in MPEC 2009-V66 -- 2009 VP, 2009 UK28, 2009 TM10, 2009 MX6
850Cordell-Lorenz Obs. in Tennessee, 3 in MPEC 2009-V66 -- 2009 VZ, 2009 UV18, 85818
B23Fiamene Obs. in Italy, 5 in MPEC 2009-V66 -- 2009 VP, 2009 TK12, 2009 SM103, 2009 ML1, 16834
704LINEAR in New Mexico, 3 in MPEC 2009-V66 -- 2009 VZ, 162273, 136617
J75La Sagra Obs. in Spain, 4 in MPEC 2009-V66 -- 2009 VP, 2009 UK28, 224926, 154244
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2009-V66 -- 2009 KK8
568[program code "[" (25) on Mauna Kea in Hawaii, 1 in MPEC 2009-V66 -- 2003 WO151
B74Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2009-V66 -- 2009 VW
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2009-V66 -- 217807
I19Tanti Obs. in Argentina, 2 in MPEC 2009-V66 -- 2009 UW2, 1998 SE36
926Tenagra II Obs. in Arizona, 1 in MPEC 2009-V66 -- 2009 VZ
H53Thompsonville Obs. in Illinois, 3 in MPEC 2009-V66 -- 2009 UK28, 2009 TK12, 2005 RQ6
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2009-V66 -- 162273
H47Vicksburg Obs. in Mississippi, 3 in MPEC 2009-V66 -- 5626, 3552, 3361
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 13 November '09

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 1435 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 VA26NEODyS13232023-2089443.61e-09-5.92-6.550NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2009/11/11.381 to 2009/11/12.326."
2009 VZ25NEODyS1323201711.53e-09-8.57-8.570NEODyS: "Based on 12 optical observations (of which 0 are rejected as outliers) from 2009/11/11.357 to 2009/11/12.284."
2009 VR25NEODyS13232013-2087841.79e-07-5.36-6.500NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2009/11/11.186 to 2009/11/12.117."

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 13 November '09

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

1323Noted that NEODyS has posted 2009 VA26 as an impact risk - see above
Noted that NEODyS has posted 2009 VR25 as an impact risk - see above
Noted that NEODyS has posted 2009 VZ25 as an impact risk - see above
Grabbed MPEC 2009-V66 - Daily Orbit Update - see above