Contents  on 22 March '10

Resources:

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 22 March '10

The MPC's NEO Confirmation Page has 3 listings: 3 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three updated listings. Of these, two were "one nighters." So far The Tracking News has counted a total of nine listings on the NEOCP at some point today.

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 22 March '10

Minor Planet Electronic Circulars

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


MPEC 2010-F66 - "11:12 UT" - 2010 FB10


MPEC 2010-F65 - "11:04 UT" - 2010 FA10


MPEC 2010-F64 - "11:01 UT" - 2010 FZ9


MPEC 2010-F63 - "10:58 UT" - 2010 FY9


MPEC 2010-F62 - "10:55 UT" - 2010 EX119


<< DOU on 22 Mar. '10 >>  MPEC 2010-F61 - "06:09 UT" - Daily Orbit Update

Observers  on 22 March '10

Nineteen observing facilities appear in today's MPECs.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 1 in MPEC 2010-F61 -- 2010 FQ
160Castelmartini Obs. in Italy, 4 in MPEC 2010-F61 -- 2010 EG21, 1999 RC32, 85839, 207945
703Catalina Sky Survey in Arizona, 1 in MPEC 2010-F61 -- 2010 EZ45
448Desert Moon Obs. in New Mexico, 5 in MPEC 2010-F61 -- 2010 EK43, 2010 DP, 2010 DB34, 2010 CW180, 2010 CV180
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 2 in MPECs 2010-F62 & 2010-F66 -- 2010 FB10, 2010 EX119
B23Fiamene Obs. in Italy, 2 in MPEC 2010-F61 -- 2002 CF26, 141495
J95Great Shefford Obs. in England, 2 in MPEC 2010-F61 -- 2010 FW9, 2010 FV9
379Hamamatsu-Yuto Obs. in Japan, 3 in MPEC 2010-F61 -- 2010 EX11, 2010 CC180, 2000 CO101
H75Indian Hill North Obs. in Ohio, 1 in MPEC 2010-F61 -- 1998 KN3
704LINEAR in New Mexico, 39 in MPECs 2010-F61, 2010-F63, 2010-F64 & 2010-F65 -- 2010 FZ9, 2010 FY9, 2010 FU9, 2010 FR9, 2010 FA10, 2010 CM44, 2009 UK, 2009 UD2, 2009 FY4, 2009 CB3, 2004 RK, 2003 UL12, 2000 CO101, 1999 RC32, 1998 KN3, 96631, 40263, 39796, 27346, 232382, 218863, 214088, 20790, 175706, 164201, 162998, 162882, 16064, 159402, 141495, 136618, 12923, 11398, 8567, 7822, 5693, 5653, 4055, 1627
H01Magdalena Ridge Obs. (MRO) in New Mexico, 4 in MPECs 2010-F62, 2010-F63, 2010-F65 & 2010-F66 -- 2010 FY9, 2010 FB10, 2010 FA10, 2010 EX119
G96Mt. Lemmon Survey (MLS) in Arizona, 4 in MPECs 2010-F61 & 2010-F66 -- 2010 FN, 2010 FB10, 2010 EJ43, 1996 GQ
A13Naef Obs. in Switzerland, 1 in MPEC 2010-F61 -- 2010 EF44
461SZTE Asteroid Program in Hungary, 1 in MPEC 2010-F64 -- 2010 FZ9
H36Sandlot Obs. in Kansas, 4 in MPECs 2010-F63, 2010-F64, 2010-F65 & 2010-F66 -- 2010 FZ9, 2010 FY9, 2010 FB10, 2010 FA10
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2010-F61 -- 2005 YU55, 39796
291Spacewatch 1.8m telescope in Arizona, 9 in MPECs 2010-F61 & 2010-F66 -- 2010 FR, 2010 FD7, 2010 FD6, 2010 FB10, 2010 EX11, 2010 EW45, 2010 EK44, 2010 ED43, 2010 EA46
926Tenagra II Obs. in Arizona, 5 in MPECs 2010-F61, 2010-F63, 2010-F65 & 2010-F66 -- 2010 FY9, 2010 FU, 2010 FT, 2010 FB10, 2010 FA10
C51WISE in Earth polar orbit, 2 in MPECs 2010-F61 & 2010-F62 -- 2010 EX119, 2002 YF4
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 22 March '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.
0000NNN000

Object

Risk
Monitor
When
Noted
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Today's Latest Risk Assessments
2010 FX9NEODyS15102033-2089136.17e-09-7.44-7.920NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2010/03/21.438 to 2010/03/21.519."
JPL Sentry02092011-21091228.4e-08-6.27-6.720JPL: "Analysis based on 19 observations spanning .08093 days (2010-Mar-21.43705 to 2010-Mar-21.51798)." Diameter approximately 0.062 km. from mean, weighted H=23.7.
2010 FW9JPL Sentry1510R E M O V E DJPL #2 for the day: Risk listing removed at 1038 UTC.
2010 FV9JPL Sentry15102050-210062.1e-08-8.19-8.550JPL #2 for the day: "Analysis based on 20 observations spanning .81803 days (2010-Mar-21.11439 to 2010-Mar-21.93242)." Diameter approximately 0.028 km. from mean, weighted H=25.4.
2010 FT9NEODyS1511206411.43e-08-7.67-7.670NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2010/03/20.360 to 2010/03/21.461."
2010 FD7JPL Sentry15102049-2106102.0e-08-6.20-6.320JPL: "Analysis based on 27 observations spanning 2.1396 days (2010-Mar-19.29153 to 2010-Mar-21.43115)." Diameter approximately 0.131 km. from mean, weighted H=22.1.
NEODyS15102039-207991.55e-08-6.35-6.480NEODyS: "Based on 27 optical observations (of which 0 are rejected as outliers) from 2010/03/19.292 to 2010/03/21.432."
2010 FD6JPL Sentry1510R E M O V E DJPL: Risk listing removed at 0953 UTC.
NEODyS1510R E M O V E D-
2010 FNJPL Sentry15102082-210362.0e-06-6.81-7.100JPL: "Analysis based on 31 observations spanning 3.8945 days (2010-Mar-17.24321 to 2010-Mar-21.13776)." Diameter approximately 0.016 km. from mean, weighted H=26.6.
NEODyS15102078-2090122.16e-06-6.77-7.130NEODyS: "Based on 32 optical observations (of which 1 are rejected as outliers) from 2010/03/17.244 to 2010/03/21.139."
2010 EW45JPL Sentry15102016-2089151.0e-07-2.80-2.880JPL: "Analysis based on 41 observations spanning 6.0682 days (2010-Mar-15.10972 to 2010-Mar-21.17795)." Diameter approximately 0.968 km. from mean, weighted H=17.7.
NEODyS15102016-2090156.88e-08-2.89-2.950NEODyS: "Based on 41 optical observations (of which 0 are rejected as outliers) from 2010/03/15.110 to 2010/03/21.179."
2010 EK44JPL Sentry1510209917.1e-10-6.76-6.760JPL: "Analysis based on 34 observations spanning 7.8898 days (2010-Mar-13.35941 to 2010-Mar-21.24919)." Diameter approximately 0.350 km. from mean, weighted H=19.9.

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 22 March '10

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

1510Noted that JPL Sentry has updated its 2010 EK44 risk assessment - see above
Noted that JPL Sentry has updated its 2010 EW45 risk assessment - see above
Noted that NEODyS has updated its 2010 EW45 risk assessment - see above
Noted that JPL Sentry has removed 2010 FD6 as an impact risk - see above
Noted that NEODyS has removed 2010 FD6 as an impact risk - see above
Noted 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 FN risk assessment - see above
Noted that NEODyS has updated its 2010 FN risk assessment - see above
Noted that NEODyS has posted 2010 FT9 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 FV9 risk assessment - see above
Noted that JPL Sentry has removed 2010 FW9 as an impact risk - see above
Noted that NEODyS has posted 2010 FX9 as an impact risk - see above
Grabbed MPEC 2010-F61 - Daily Orbit Update - see above
Grabbed MPEC 2010-F62 - 2010 EX119 - see above
Grabbed MPEC 2010-F63 - 2010 FY9 - see above
Grabbed MPEC 2010-F64 - 2010 FZ9 - see above
Grabbed MPEC 2010-F65 - 2010 FA10 - see above
Grabbed MPEC 2010-F66 - 2010 FB10 - see above
0209Noted that JPL Sentry has posted 2010 FV9 as an impact risk - see above
Noted that JPL Sentry has posted 2010 FX9 as an impact risk - see above
0028Noted that JPL Sentry has posted 2010 FW9 as an impact risk - see above