Contents  on 27 January '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 27 January '08

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty. There was one listing noted earlier today.

New MPECs  on 27 January '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 27 Jan. '08 >>  MPEC 2008-B51 - "07:07 UT" - Daily Orbit Update

Observers  on 27 January '08

Eight observing facilities appear in today's MPEC.

CodeObserver / observatory
170Begues Obs. in Spain, 5 in MPEC 2008-B51 -- 1989 AZ, 90403, 68359, 153591, 5131
151Eschenberg Obs. in Switzerland, 1 in MPEC 2008-B51 -- 2007 TU24
046Klet Obs. in the Czech Republic, 3 in MPEC 2008-B51 -- 2007 YX1, 2005 XD1, 1989 AZ
B33Libbiano Obs. in Italy, 1 in MPEC 2008-B51 -- 4450
A13Naef Obs. in Switzerland, 3 in MPEC 2008-B51 -- 2008 AF4, 2007 PS9, 144922
H45Petit Jean Mtn. South Obs. in Arkansas, 1 in MPEC 2008-B51 -- 2007 TU24
A78Stia Obs. in Italy, 2 in MPEC 2008-B51 -- 2005 XD1, 138947
A48Verona Obs. in Italy, 2 in MPEC 2008-B51 -- 2008 AF4, 2005 TU45

Impact Risk Monitoring  on 27 January '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 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 AF4NEODyS16182078-209091.77e-06-3.45-3.590NEODyS: "Based on 290 optical observations (of which 3 are rejected as outliers) from 2008/01/10.397 to 2008/01/26.954."

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 27 January '08

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

1618Noted that NEODyS has updated its 2008 AF4 risk assessment - see above
Grabbed MPEC 2008-B51 - Daily Orbit Update - see above
The NEOCP has become empty