Contents  on 26 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 26 March '10

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

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

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 26 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 26 Mar. '10 >>  MPEC 2010-F80 - "06:10 UT" - Daily Orbit Update

Observers  on 26 March '10

Fifteen observing facilities appear in today's MPEC.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 1 in MPEC 2010-F80 -- 2010 FR
H21Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 12 in MPEC 2010-F80 -- 2010 FX9, 2010 FV9, 2010 FS, 2010 FR9, 2010 FQ, 2010 FP, 2010 FL, 2010 FK, 2010 FA10, 2010 EX11, 2010 CC180, 2000 CO101
B75Betelgeuse Station in Italy, 7 in MPEC 2010-F80 -- 2007 BT2, 68350, 52768, 208565, 14402, 143651, 8566
448Desert Moon Obs. in New Mexico, 6 in MPEC 2010-F80 -- 2010 FZ9, 2010 FP, 2010 EE43, 2010 CR1, 185716, 141525
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-F80 -- 2010 CM44
704LINEAR in New Mexico, 2 in MPEC 2010-F80 -- 5653, 1036
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-F80 -- 2010 DK34
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2010-F80 -- 2010 EJ43
F51Pan-STARRS 1 (PS1) in Hawaii, 15 in MPEC 2010-F80 -- 2008 JF, 2008 GE1, 2007 FV42, 2006 UR, 2004 XK4, 96631, 88264, 68346, 39796, 190161, 162452, 16064, 144861, 136618, 2368
I20Rio Cuarto Obs. in Argentina, 6 in MPEC 2010-F80 -- 2010 FR9, 2010 CC180, 2009 UE2, 2009 UD2, 2009 SX1, 2007 EP88
691Spacewatch 0.9m telescope in Arizona, 5 in MPEC 2010-F80 -- 2010 FU, 2010 FS9, 2010 FP9, 2010 DJ56, 2005 YU55
291Spacewatch 1.8m telescope in Arizona, 12 in MPEC 2010-F80 -- 2010 FU, 2010 FT9, 2010 FE7, 2010 FD7, 2010 FD6, 2010 FA6, 2010 EX119, 2010 EG43, 2010 EF44, 2010 EA46, 2010 CC55, 2005 YU55
926Tenagra II Obs. in Arizona, 3 in MPEC 2010-F80 -- 2010 FV9, 2010 FT, 2010 EX11
D96Tzec Maun Obs. Moorook in South Australia, 1 in MPEC 2010-F80 -- 68216
C51WISE in Earth polar orbit, 2 in MPEC 2010-F80 -- 230111, 5646
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 26 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 FE7JPL Sentry14062052-2109395.7e-07-5.79-6.240JPL: "Analysis based on 21 observations spanning 6.0267 days (2010-Mar-19.33039 to 2010-Mar-25.35711)." Diameter approximately 0.062 km. from mean, weighted H=23.7.
NEODyS14062052-2089275.39e-07-5.76-6.140NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2010/03/19.331 to 2010/03/25.358."
2010 FD7JPL Sentry1406207015.9e-10-7.74-7.740JPL: "Analysis based on 36 observations spanning 6.1010 days (2010-Mar-19.29153 to 2010-Mar-25.39254)." Diameter approximately 0.120 km. from mean, weighted H=22.2.
NEODyS1406207011.4e-10-8.47-8.470NEODyS: "Based on 36 optical observations (of which 0 are rejected as outliers) from 2010/03/19.292 to 2010/03/25.393."

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 26 March '10

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

1407Grabbed MPEC 2010-F80 - Daily Orbit Update - see above
1406Noted that JPL Sentry has updated its 2010 FD7 risk assessment - see above
Noted that NEODyS has updated its 2010 FD7 risk assessment - see above
Noted that JPL Sentry has updated its 2010 FE7 risk assessment - see above
Noted that NEODyS has updated its 2010 FE7 risk assessment - see above