Contents  on 24 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 24 March '10

The MPC's NEO Confirmation Page has 4 listings: 4 new

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four new listings. Of these, one was a "one nighter."

New MPECs  on 24 March '10

Minor Planet Electronic Circulars

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

<< DOU on 24 Mar. '10 >>  MPEC 2010-F76 - "06:13 UT" - Daily Orbit Update

Observers  on 24 March '10

Seventeen observing facilities appear in today's MPEC.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 3 in MPEC 2010-F76 -- 2010 FQ, 2010 FA10, 2010 CH18
A50Andrushivka Obs. in the Ukraine, 1 in MPEC 2010-F76 -- 2010 CM44
H21Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 18 in MPEC 2010-F76 -- 2010 FX9, 2010 FV9, 2010 FS9, 2010 FS, 2010 FR9, 2010 FQ9, 2010 FQ, 2010 FL, 2010 FK, 2010 FD7, 2010 FB6, 2010 FA10, 2010 EZ45, 2010 EX11, 2010 EK44, 2010 EG21, 2010 DB34, 2010 CM44
160Castelmartini Obs. in Italy, 15 in MPEC 2010-F76 -- 2010 CL18, 2009 UD2, 2009 FY4, 2004 TB18, 86067, 85839, 68359, 68216, 27346, 218863, 162998, 162882, 159402, 11066, 7822
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 6 in MPEC 2010-F76 -- 2010 FQ, 2010 DB34, 2010 CD19, 2009 FY4, 2006 CX10, 232382
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 5 in MPEC 2010-F76 -- 2010 FS9, 2010 FP9, 2010 FF7, 2010 FE7, 2010 FC6
151Eschenberg Obs. in Switzerland, 3 in MPEC 2010-F76 -- 2010 FR, 2009 FY4, 2000 CO101
704LINEAR in New Mexico, 1 in MPEC 2010-F76 -- 2008 EE
J75La Sagra Obs. in Spain, 2 in MPEC 2010-F76 -- 85839, 1036
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-F76 -- 2010 AG79
B67Mirasteilas Obs. in Switzerland, 2 in MPEC 2010-F76 -- 2006 CX10, 11066
213Montcabre Obs. in Spain, 1 in MPEC 2010-F76 -- 2010 EK43
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 4 in MPEC 2010-F76 -- 2010 FU, 2010 EX11, 2010 CM44, 2010 CC180
H36Sandlot Obs. in Kansas, 6 in MPEC 2010-F76 -- 2010 FV9, 2010 FU9, 2010 FR9, 2010 FF7, 2010 FC6, 2010 FB6
691Spacewatch 0.9m telescope in Arizona, 7 in MPEC 2010-F76 -- 2006 FV35, 2000 SV20, 96631, 85490, 186822, 141432, 2061
291Spacewatch 1.8m telescope in Arizona, 2 in MPEC 2010-F76 -- 2010 EX119, 2010 CN1
926Tenagra II Obs. in Arizona, 5 in MPEC 2010-F76 -- 2010 FY9, 2010 FW9, 2010 FL, 2010 FA10, 2010 EX11
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 24 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. 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 FE7NEODyS15342028-2089727.06e-07-5.61-6.330NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2010/03/19.331 to 2010/03/23.176."
JPL Sentry15332034-21091211.0e-06-5.56-6.380JPL: "Analysis based on 18 observations spanning 3.8450 days (2010-Mar-19.33039 to 2010-Mar-23.17535)." Diameter approximately 0.061 km. from mean, weighted H=23.7.
2010 FD7NEODyS15352053-207942.02e-07-5.28-5.280NEODyS: "Based on 30 optical observations (of which 0 are rejected as outliers) from 2010/03/19.292 to 2010/03/23.369."
JPL Sentry15332059-209942.5e-07-5.10-5.140JPL: "Analysis based on 30 observations spanning 4.0765 days (2010-Mar-19.29153 to 2010-Mar-23.368055)." Diameter approximately 0.130 km. from mean, weighted H=22.1.
2010 EK44JPL Sentry1533R E M O V E DJPL: Risk listing removed at 1050 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 24 March '10

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

2241Noted that the NEOCP has become active
1535Noted that NEODyS has updated its 2010 FD7 risk assessment - see above
1534Noted that NEODyS has updated its 2010 FE7 risk assessment - see above
1533Noted that JPL Sentry has removed 2010 EK44 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 FD7 risk assessment - see above
Noted that JPL Sentry has updated its 2010 FE7 risk assessment - see above
Grabbed MPEC 2010-F76 - Daily Orbit Update - see above