Contents  on 8 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 8 March '10

The MPC's NEO Confirmation Page has 6 listings: 6 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had six updated listings. So far The Tracking News has counted a total of nine listings on the NEOCP at some point today.

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 8 March '10

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been three MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2010-E26 - "12:55 UT" - 2007 UB6

<< DOU on 8 Mar. '10 >>  MPEC 2010-E25 - "07:07 UT" - Daily Orbit Update

MPEC 2010-E24 - "02:02 UT" - 2007 PF6

Observers  on 8 March '10

Ten observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 15 in MPECs 2010-E25 & 2010-E26 -- 2010 DX1, 2010 DW1, 2010 DP, 2010 CR1, 2010 CM44, 2010 CL18, 2010 CB55, 2010 BC3, 2010 AJ, 2009 XC2, 2009 UV18, 2007 UB6, 2004 FG11, 2001 VC76, 1996 BA1
J51Atlante Obs. in the Canary Islands, 3 in MPEC 2010-E25 -- 2009 UD2, 2000 CO101, 54789
G58Chabot Obs. in northern California, 2 in MPEC 2010-E25 -- 2010 CF55, 162882
J95Great Shefford Obs. in England, 1 in MPEC 2010-E25 -- 2010 EX11
240Herrenberg Obs. in Germany, 4 in MPEC 2010-E25 -- 2002 AJ129, 162882, 7822, 1862
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-E24 -- 2007 PF6
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2010-E25 -- 2002 CF26
A13Naef Obs. in Switzerland, 3 in MPEC 2010-E25 -- 1999 RC32, 35432, 175706
J26Spaceguard Centre in Wales, 1 in MPEC 2010-E25 -- 11066
C51WISE in Earth polar orbit, 5 in MPEC 2010-E25 -- 2009 KD5, 2008 EV5, 2007 BM8, 2004 VC, 2002 XG4
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 8 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 CS19JPL Sentry2108210443.7e-05-6.29-6.320JPL: "Analysis based on 43 observations spanning 4.0065 days (2010-Feb-15.32692 to 2010-Feb-19.333453)." Diameter approximately 0.009 km. from mean, weighted H=28.0.
2010 CAJPL Sentry2108202215.3e-06-4.32-4.320JPL: "Analysis based on 60 observations spanning 8.9008 days (2010-Feb-05.19638 to 2010-Feb-14.097229)." Diameter approximately 0.043 km. from mean, weighted H=24.5.

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 8 March '10

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

2108Noted that JPL Sentry has updated its 2010 CA risk assessment - see above
Noted that JPL Sentry has updated its 2010 CS19 risk assessment - see above
1531Grabbed MPEC 2010-E25 - Daily Orbit Update - see above
Grabbed MPEC 2010-E26 - 2007 UB6 - see above
0621Grabbed MPEC 2010-E24 - 2007 PF6 - see above