Contents  on 14 May '09


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 14 May '09

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty. There were five listings noted earlier today.

New MPECs  on 14 May '09

Minor Planet Electronic Circulars

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

MPEC 2009-J59 - "17:04 UT" - 2009 JR2

MPEC 2009-J58 - "17:01 UT" - 2009 JQ2

MPEC 2009-J57 - "16:55 UT" - 2009 JO2

<< DOU on 14 May '09 >>  MPEC 2009-J56 - "06:06 UT" - Daily Orbit Update

Observers  on 14 May '09

Twelve observing facilities appear in today's MPECs.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 1 in MPEC 2009-J56 -- 2009 JM2
A50Andrushivka Obs. in the Ukraine, 2 in MPEC 2009-J56 -- 39557, 5693
703Catalina Sky Survey (CSS) in Arizona, 7 in MPEC 2009-J56 -- 2009 DF1, 2008 JV19, 90367, 86666, 85774, 37655, 3103
448Desert Moon Obs. in New Mexico, 6 in MPEC 2009-J56 -- 2009 JL1, 2009 JK1, 2009 HD82, 2005 RD1, 54401, 175706
683Goodricke-Pigott Obs. in Arizona, 1 in MPEC 2009-J56 -- 5620
900Moriyama Obs. in Japan, 1 in MPEC 2009-J56 -- 2009 JM2
G96Mt. Lemmon Survey (MLS) in Arizona, 11 in MPECs 2009-J56, 2009-J57, 2009-J58 & 2009-J59 -- 2009 JR2, 2009 JR, 2009 JQ2, 2009 JO2, 2008 SW150, 2007 BF72, 2000 KN44, 40267, 39557, 35396, 5620
473Remanzacco Obs. in Italy, 1 in MPEC 2009-J58 -- 2009 JQ2
E12Siding Spring Survey in New South Wales, 1 in MPEC 2009-J56 -- 143947
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2009-J56 -- 65803, 31345
291Spacewatch 1.8m telescope in Arizona, 6 in MPECs 2009-J56, 2009-J57, 2009-J58 & 2009-J59 -- 2009 JR2, 2009 JQ2, 2009 JO2, 2009 JM1, 2009 JL1, 2009 HV58
926Tenagra II Obs. in Arizona, 1 in MPEC 2009-J56 -- 2009 HD82
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 14 May '09

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
2009 JL2NEODyS13212057-208548.85e-06-5.59-5.900NEODyS: "Based on 53 optical observations (of which 2 are rejected as outliers) from 2009/05/12.387 to 2009/05/13.629."

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 14 May '09

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

1742Grabbed MPEC 2009-J58 - 2009 JQ2 - see above
Grabbed MPEC 2009-J59 - 2009 JR2 - see above
1741Noted that the NEOCP has become empty
1700Grabbed MPEC 2009-J57 - 2009 JO2 - see above
1321Noted that NEODyS has posted 2009 JL2 as an impact risk - see above
Grabbed MPEC 2009-J56 - Daily Orbit Update - see above