Contents  on 11 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 11 March '10

The MPC's NEO Confirmation Page has 6 listings: 2 new, 4 updated

When last checked at 2357 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and four updated listings. Of these, two 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 11 March '10

Minor Planet Electronic Circulars

As of last check at 2357 UTC, there have been seven MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2010-E51 - "23:46 UT" - Comet P/2010 A5 (LINEAR)

MPEC 2010-E50 - "23:42 UT" - Comet P/2010 A2 (LINEAR)

MPEC 2010-E49 - "23:34 UT" - Comet P/2010 A1 (Hill)

MPEC 2010-E48 - "20:53 UT" - 2006 QW89

MPEC 2010-E47 - "20:51 UT" - 2008 EK1

MPEC 2010-E46 - "15:45 UT" - 2010 CW180

<< DOU on 11 Mar. '10 >>  MPEC 2010-E45 - "07:07 UT" - Daily Orbit Update

Observers  on 11 March '10

A total of 21 observing facilities appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2010-E45 -- 54789
J51Atlante Obs. in the Canary Islands, 2 in MPEC 2010-E45 -- 2008 EE, 68216
467Auckland Obs. in New Zealand, 1 in MPEC 2010-E51 -- P/2010 A5
703Catalina Sky Survey in Arizona, 1 in MPEC 2010-E46 -- 2010 CW180
850Cordell-Lorenz Obs. in Tennessee, 2 in MPECs 2010-E49 & 2010-E50 -- P/2010 A2, P/2010 A1
639Dresden Obs. in Germany, 2 in MPEC 2010-E45 -- 2004 TR13, 2000 CO101
E85Farm Cove Obs. in New Zealand, 1 in MPEC 2010-E51 -- P/2010 A5
950.Ovidiu Vaduvescu via La Palma in the Canary Islands, 2 in MPEC 2010-E45 -- 2006 SS134, 2000 CO101
B82Maidbronn Obs. in Germany, 2 in MPECs 2010-E49 & 2010-E50 -- P/2010 A2, P/2010 A1
C10Maisoncelles Obs. in France, 1 in MPEC 2010-E50 -- P/2010 A2
608NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2010-E45 -- 2007 JZ20
A13Naef Obs. in Switzerland, 1 in MPEC 2010-E45 -- 5693
224Ottmarsheim Obs. in France, 1 in MPEC 2010-E49 -- P/2010 A1
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 5 in MPECs 2010-E45 & 2010-E51 -- 2010 CM44, 2010 CL18, 2010 CC180, P/2010 A5, 2006 CX10
D29Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2010-E46 -- 2010 CW180
473Remanzacco Obs. in Italy, 1 in MPEC 2010-E49 -- P/2010 A1
204Schiaparelli Obs. in Italy, 5 in MPEC 2010-E45 -- 2010 DW1, 2009 UD2, 2009 FY4, 2006 DS14, 85839
B76Schonfeld Obs. in Germany, 1 in MPEC 2010-E45 -- 54789
926Tenagra II Obs. in Arizona, 3 in MPECs 2010-E45, 2010-E47 & 2010-E48 -- 2010 CN44, 2008 EK1, 2006 QW89
D96Tzec Maun Obs. Moorook in South Australia, 3 in MPECs 2010-E45 & 2010-E51 -- P/2010 A5, 4486, 1036
I15Wishing Star Obs. in Rhode Island, 3 in MPEC 2010-E45 -- 2009 FY4, 2000 CO101, 163132
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 11 March '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2357 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 CN44JPL Sentry1500R E M O V E DJPL: Risk listing removed at 1049 UTC.

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 11 March '10

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

2357Grabbed MPEC 2010-E49 - Comet P/2010 A1 (Hill) - see above
Grabbed MPEC 2010-E50 - Comet P/2010 A2 (LINEAR) - see above
Grabbed MPEC 2010-E51 - Comet P/2010 A5 (LINEAR) - see above
2103Grabbed MPEC 2010-E47 - 2008 EK1 - see above
Grabbed MPEC 2010-E48 - 2006 QW89 - see above
1602Grabbed MPEC 2010-E46 - 2010 CW180 - see above
1500Noted that JPL Sentry has removed 2010 CN44 as an impact risk - see above
Grabbed MPEC 2010-E45 - Daily Orbit Update - see above