Contents  on 25 March '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 25 March '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 (last checked at 2354 UTC).

New MPECs  on 25 March '08

Minor Planet Electronic Circulars

As of last check at 2354 UTC, there has been one MPEC issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 25 Mar. '08 >>  MPEC 2008-F31 - "06:07 UT" - Daily Orbit Update

Observers  on 25 March '08

Eight observing facilities appear in today's MPEC.

CodeObserver / observatory
H55Astronomical Research Obs. in Illinois, 1 in MPEC 2008-F31 -- 2008 FC
703Catalina Sky Survey (CSS) in Arizona, 4 in MPEC 2008-F31 -- 2008 FC, 2008 EX84, 2008 EM85, 2007 RV9
448Desert Moon Obs. in New Mexico, 4 in MPEC 2008-F31 -- 2008 EZ97, 2008 ES, 2008 EM85, 2008 EH
J95Great Shefford Obs. in England, 2 in MPEC 2008-F31 -- 2008 FC, 2008 FB
809|program code "|" via La Silla in Chile, 2 in MPEC 2008-F31 -- 2008 CE6, 2005 GE59
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2008-F31 -- 2007 UT65
291Spacewatch 1.8m telescope in Arizona, 3 in MPEC 2008-F31 -- 2008 EM7, 2008 EE5, 2002 EV11
F85Tiki Obs. in Tahiti, 2 in MPEC 2008-F31 -- 2007 YB2, 2007 EX

Impact Risk Monitoring  on 25 March '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2354 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 EZ97JPL Sentry1452R E M O V E DJPL: Risk listing removed at 0932 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 25 March '08

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

1452Noted that JPL Sentry has removed 2008 EZ97 as an impact risk - see above
Grabbed MPEC 2008-F31 - Daily Orbit Update - see above