Contents  on 5 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 5 March '10

The MPC's NEO Confirmation Page has 7 listings: 1 new, 6 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and six updated listings. 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 5 March '10

Minor Planet Electronic Circulars

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

MPEC 2010-E16 - "19:30 UT" - 2000 RE52 = 2010 EK2

MPEC 2010-E15 - "16:28 UT" - 2009 CB3

MPEC 2010-E14 - "12:00 UT" - 2010 CC180

<< DOU on 5 Mar. '10 >>  MPEC 2010-E13 - "07:06 UT" - Daily Orbit Update

MPEC 2010-E12 - "01:34 UT" - Comet C/2010 D2 (WISE)

Observers  on 5 March '10

A total of 22 observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 14 in MPECs 2010-E13 & 2010-E14 -- 2010 DA, 2010 CF19, 2010 CD19, 2010 CC180, 2010 BH2, 2010 BB3, 2008 JG, 2008 EE, 2007 UR3, 2005 ED318, 2004 TR13, 2004 RA11, 2002 CF26, 2002 AJ129
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2010-E13 -- 2010 EK2
703Catalina Sky Survey (CSS) in Arizona, 11 in MPECs 2010-E13 & 2010-E14 -- 2010 EK2, 2010 CC180, 2009 UD2, 2008 EE, 2006 DS14, 1999 RC32, 85990, 85839, 20790, 5693, 433
448Desert Moon Obs. in New Mexico, 2 in MPEC 2010-E13 -- 2010 CD19, 2009 WC26
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-E13 -- 2010 CM44
J95Great Shefford Obs. in England, 2 in MPECs 2010-E12 & 2010-E13 -- 2010 EK2, C/2010 D2
A17Guidestar Obs. in Germany, 2 in MPEC 2010-E13 -- 2010 CM44, 162882
J75La Sagra Obs. in Spain, 1 in MPEC 2010-E14 -- 2010 CC180
J93Mt. Tuffley Obs. in England, 2 in MPEC 2010-E13 -- 85839, 54789
A13Naef Obs. in Switzerland, 2 in MPEC 2010-E13 -- 2008 JG, 2002 CF26
H45Petit Jean Mtn. South Obs. in Arkansas, 1 in MPEC 2010-E13 -- 433
J52Pinsoro Obs. in Spain, 4 in MPEC 2010-E13 -- 2009 UN3, 2000 CO101, 5131, 3554
H36Sandlot Obs. in Kansas, 2 in MPEC 2010-E13 -- 2010 DF1, 2010 CF55
J26Spaceguard Centre in Wales, 1 in MPEC 2010-E13 -- 2004 RA11
691Spacewatch 0.9m telescope in Arizona, 3 in MPEC 2010-E13 -- 1996 FS1, 96631, 175706
291Spacewatch 1.8m telescope in Arizona, 10 in MPEC 2010-E13 -- 2010 DW1, 2010 DM, 2010 DJ56, 2010 DH1, 2010 DF1, 2010 CN44, 2010 CL19, 2010 CG19, 2010 CE19, 2010 BT3
611Starkenburg Obs. in Germany, 4 in MPEC 2010-E13 -- 2010 BB3, 2008 EE, 2006 DS14, 2004 RD84
I19Tanti Obs. in Argentina, 1 in MPEC 2010-E13 -- 2007 EP88
926Tenagra II Obs. in Arizona, 2 in MPECs 2010-E14 & 2010-E15 -- 2010 CC180, 2009 CB3
H53Thompsonville Obs. in Illinois, 8 in MPEC 2010-E13 -- 2008 EE, 2004 TR13, 2000 CO101, 54789, 218863, 163132, 5626, 2212
C51WISE in Earth polar orbit, 2 in MPECs 2010-E12 & 2010-E13 -- C/2010 D2, 152964
J08Zonalunar Obs. in Spain, 3 in MPEC 2010-E13 -- 2008 EE, 2006 DS14, 2000 CO101
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 5 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. 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 Sentry1519207612.4e-07-4.08-4.080JPL: "Analysis based on 26 observations spanning 18.053 days (2010-Feb-15.11003 to 2010-Mar-05.16294)." Diameter approximately 0.430 km. from mean, weighted H=19.5.
NEODyS1519R E M O V E D-
2010 CL19JPL Sentry1519R E M O V E DJPL: Risk listing removed at 1054 UTC.
NEODyS1519R E M O V E D-

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 5 March '10

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

2000Grabbed MPEC 2010-E16 - 2000 RE52 = 2010 EK2 - see above
1705Grabbed MPEC 2010-E15 - 2009 CB3 - see above
1519Noted that JPL Sentry has removed 2010 CL19 as an impact risk - see above
Noted that NEODyS has removed 2010 CL19 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 CN44 risk assessment - see above
Noted that NEODyS has removed 2010 CN44 as an impact risk - see above
Grabbed MPEC 2010-E13 - Daily Orbit Update - see above
Grabbed MPEC 2010-E14 - 2010 CC180 - see above
0611Grabbed MPEC 2010-E12 - Comet C/2010 D2 (WISE) - see above