Contents  on 13 November '08


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 '08

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty and hasn't been noted by The Tracking News as being active yet today (checked at 2359 UTC). It was last noted active yesterday.

New MPECs  on 13 November '08

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there has been one MPEC issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 13 Nov. '08 >>  MPEC 2008-V59 - "07:14 UT" - Daily Orbit Update

Observers  on 13 November '08

Four observing facilities appear in today's MPEC.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 18 in MPEC 2008-V59 -- 2008 VN, 2008 VK, 2008 VE, 2008 VB1, 2008 UZ94, 2008 US2, 2008 UN90, 2008 UF7, 2008 UE7, 2008 TR2, 2008 SU1, 2008 SR, 2008 SQ, 2008 SP7, 2008 SN1, 2008 SH82, 2008 SE, 2008 QT3
808El Leoncito Obs. in Argentina, 9 in MPEC 2008-V59 -- 2005 WD1, 87684, 171576, 142348, 11405, 8567, 5332, 5131, 1865
204Schiaparelli Obs. in Italy, 17 in MPEC 2008-V59 -- 2008 VZ3, 2008 VY3, 2008 VU3, 2008 VR4, 2008 VA4, 2008 UT5, 2008 US4, 2008 UP100, 2008 SP7, 2005 WS55, 2004 TL19, 2004 SB20, 2001 WJ2, 96744, 90075, 5143, 3200
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2008-V59 -- 2008 UC, 2008 HE3
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 13 November '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2359 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.
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090.
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
2008 VR4JPL Sentry14102060-2107244.3e-08-6.61-6.880JPL: "Analysis based on 13 observations spanning .84099 days (2008-Nov-07.06772 to 2008-Nov-07.90871)." Diameter approximately 0.087 km. from mean, weighted H=23.0.
NEODyS1410R 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 13 November '08

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

1410Noted that JPL Sentry has updated its 2008 VR4 risk assessment - see above
Noted that NEODyS has removed 2008 VR4 as an impact risk - see above
Grabbed MPEC 2008-V59 - Daily Orbit Update - see above