Contents  on 3 March '10


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 3 March '10

The MPC's NEO Confirmation Page has 8 listings: 2 new, 6 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and six updated listings.

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 3 March '10

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 3 Mar. '10 >>  MPEC 2010-E09 - "07:06 UT" - Daily Orbit Update

Observers  on 3 March '10

Ten observing facilities appear in today's MPEC.

CodeObserver / observatory
J95Great Shefford Obs. in England, 1 in MPEC 2010-E09 -- 2010 DM56
A17Guidestar Obs. in Germany, 1 in MPEC 2010-E09 -- 162882
B15Inastars Obs. in Germany, 1 in MPEC 2010-E09 -- 2008 CM
950.Ovidiu Vaduvescu via La Palma in the Canary Islands, 1 in MPEC 2010-E09 -- 2000 SV20
560Madonna di Dossobuono Obs. in Italy, 3 in MPEC 2010-E09 -- 2006 DS14, 2000 CO101, 54789
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-E09 -- 2010 CN44
A13Naef Obs. in Switzerland, 1 in MPEC 2010-E09 -- 85839
587Sormano Obs. in Italy, 2 in MPEC 2010-E09 -- 2010 DA, 2010 CF19
926Tenagra II Obs. in Arizona, 3 in MPEC 2010-E09 -- 2010 DX1, 2010 DA, 2007 TK8
C51WISE in Earth polar orbit, 2 in MPEC 2010-E09 -- 2010 AE, 2009 UX17
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 3 March '10

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
2010 DM56JPL Sentry15332056-2092231.6e-06-3.41-4.120JPL: "Analysis based on 38 observations spanning 10.590 days (2010-Feb-19.26983 to 2010-Mar-01.85951)." Diameter approximately 0.340 km. from mean, weighted H=20.0.
NEODyS15332053-2089241.45e-06-3.44-4.140NEODyS: "Based on 38 optical observations (of which 0 are rejected as outliers) from 2010/02/19.271 to 2010/03/01.860."
2010 CN44JPL Sentry15332059-207633.1e-07-3.86-3.880JPL: "Analysis based on 23 observations spanning 5.1966 days (2010-Feb-15.11003 to 2010-Feb-20.306593)." Diameter approximately 0.431 km. from mean, weighted H=19.5.
NEODyS15332059-207022.75e-07-3.91-3.910NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2010/02/15.111 to 2010/02/20.307."

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 3 March '10

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

1533Noted that JPL Sentry has updated its 2010 CN44 risk assessment - see above
Noted that NEODyS has updated its 2010 CN44 risk assessment - see above
Noted that JPL Sentry has updated its 2010 DM56 risk assessment - see above
Noted that NEODyS has updated its 2010 DM56 risk assessment - see above
Grabbed MPEC 2010-E09 - Daily Orbit Update - see above