Contents  on 28 May '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 28 May '10

The MPC's NEO Confirmation Page has 10 listings: 8 new, 2 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eight new and two updated listings. Of these, three were "one nighters."

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 28 May '10

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 28 May '10 >>  MPEC 2010-K67 - "06:10 UT" - Daily Orbit Update

Observers  on 28 May '10

Eight observing facilities appear in today's MPEC.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2010-K67 -- 2010 JV34
160Castelmartini Obs. in Italy, 2 in MPEC 2010-K67 -- 2010 JV34, 85989
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-K67 -- 2010 JV34
J95Great Shefford Obs. in England, 2 in MPEC 2010-K67 -- 2010 JO71, 2010 GA34
H36Sandlot Obs. in Kansas, 2 in MPEC 2010-K67 -- 153842, 7839
204Schiaparelli Obs. in Italy, 1 in MPEC 2010-K67 -- 2008 JV19
A48Verona Obs. in Italy, 1 in MPEC 2010-K67 -- 2004 JX20
I15Wishing Star Obs. in Rhode Island, 2 in MPEC 2010-K67 -- 2010 JV34, 2010 JF88
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 28 May '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2359 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 AU118NEODyS15022012-2086105.35e-09-3.91-4.360NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2010/01/13.896 to 2010/01/15.285."
2010 AR85NEODyS15022012-2090955.82e-08-2.55-3.380NEODyS: "Based on 12 optical observations (of which 0 are rejected as outliers) from 2010/01/07.862 to 2010/01/09.582."

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 28 May '10

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

1502Noted that NEODyS has posted 2010 AR85 as an impact risk - see above
Noted that NEODyS has posted 2010 AU118 as an impact risk - see above
Grabbed MPEC 2010-K67 - Daily Orbit Update - see above