Contents  on 25 October '10

Note: These A/CC news pages will resume regular updating on Thursday, October 28th.


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 October '10

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 1728 UTC). It was last noted active on October 22nd.

New MPECs  on 25 October '10

Minor Planet Electronic Circulars

As of last check at 1728 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 25 Oct. '10 >>  MPEC 2010-U37 - "06:09 UT" - Daily Orbit Update

Observers  on 25 October '10

Six observing facilities appear in today's MPEC.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2010-U37 -- 2010 TC47
160Castelmartini Obs. in Italy, 15 in MPEC 2010-U37 -- 2010 TU149, 2010 TM3, 2010 LR68, 2010 LO97, 2004 FU4, 2003 UV11, 2002 VE68, 88959, 250706, 250697, 168378, 100926, 5869, 4954, 3200
703Catalina Sky Survey in Arizona, 1 in MPEC 2010-U37 -- 2010 TC47
J95Great Shefford Obs. in England, 1 in MPEC 2010-U37 -- 2010 UC
A17Guidestar Obs. in Germany, 2 in MPEC 2010-U37 -- 2010 TF54, 2010 TC55
J75La Sagra Obs. in Spain, 1 in MPEC 2010-U37 -- 2010 TC47
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 25 October '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 1728 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. Both also post impact solutions beyond 100 years for a few special 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 TU149JPL Sentry1728207714.4e-08-4.90-4.900JPL: "Analysis based on 62 observations spanning 8.9107 days (2010-Oct-13.37823 to 2010-Oct-22.288923)." Diameter approximately 0.270 km. from mean, weighted H=20.5.
NEODyS1728R 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 25 October '10

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

1728Noted that JPL Sentry has reposted 2010 TU149 as an impact risk - see above
Noted that NEODyS has removed 2010 TU149 as an impact risk - see above
Grabbed MPEC 2010-U37 - Daily Orbit Update - see above