Contents  on 9 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 9 March '10

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

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two updated listings. So far The Tracking News has counted a total of seven 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 9 March '10

Minor Planet Electronic Circulars

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

MPEC 2010-E35 - "20:37 UT" - 2009 XR2

MPEC 2010-E34 - "18:24 UT" - Comet C/2010 D3 (WISE)

MPEC 2010-E33 - "14:08 UT" - 2007 HD70

MPEC 2010-E32 - "13:42 UT" - 2010 EK12

MPEC 2010-E31 - "12:35 UT" - 2010 DJ77

MPEC 2010-E30 - "12:33 UT" - 2010 DH77

MPEC 2010-E29 - "12:30 UT" - 2010 DG77

<< DOU on 9 Mar. '10 >>  MPEC 2010-E28 - "07:07 UT" - Daily Orbit Update

MPEC 2010-E27 - "04:56 UT" - 2010 DW1

Observers  on 9 March '10

Eighteen observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 19 in MPEC 2010-E28 -- 2010 DX1, 2010 DW1, 2010 DB34, 2010 CR1, 2010 CN, 2010 CM44, 2010 CL18, 2010 CL1, 2010 BB3, 2009 XR2, 2009 UV18, 2008 JF, 2007 FV42, 2006 DS14, 2004 HO1, 2003 HS42, 2000 WQ19, 2000 AD6, 68216
A74Bergen-Enkheim Obs. in Germany, 2 in MPEC 2010-E28 -- 2008 GE1, 152978
B84Cyclops Obs. in The Netherlands, 3 in MPEC 2010-E28 -- 90367, 54789, 162882
J19El Maestrat Obs. in Spain, 1 in MPEC 2010-E28 -- 54789
E16Grove Creek Obs. in New South Wales, 3 in MPECs 2010-E28 & 2010-E32 -- 2010 EK12, 2008 EY5, 2000 RE52
240Herrenberg Obs. in Germany, 2 in MPEC 2010-E28 -- 2002 CF26, 163132
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-E28 -- 2010 CC55
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2010-E27 -- 2010 DW1
608NEAT's USAF Haleakala telescope in Hawaii, 2 in MPECs 2010-E27 & 2010-E35 -- 2010 DW1, 2009 XR2
A53Peschiera del Garda Obs. in Italy, 4 in MPEC 2010-E28 -- 2008 EE, 2000 CO101, 54789, 218863
H45Petit Jean Mtn. South Obs. in Arkansas, 1 in MPEC 2010-E28 -- 2010 CM44
204Schiaparelli Obs. in Italy, 3 in MPEC 2010-E28 -- 2010 CM44, 2007 EF, 4486
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2010-E32 & 2010-E34 -- 2010 EK12, C/2010 D3
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2010-E33 -- 2007 HD70
926Tenagra II Obs. in Arizona, 1 in MPEC 2010-E33 -- 2007 HD70
H53Thompsonville Obs. in Illinois, 3 in MPEC 2010-E28 -- 2004 TR13, 54789, 218863
C00Velikie Luki Obs. in Russia, 1 in MPEC 2010-E28 -- 68216
C51WISE in Earth polar orbit, 4 in MPECs 2010-E29, 2010-E30, 2010-E31 & 2010-E34 -- 2010 DJ77, 2010 DH77, 2010 DG77, C/2010 D3
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 9 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 DG77JPL Sentry16012012-21088472.0e-05-4.45-5.550JPL: "Analysis based on 6 observations spanning .59543 days (2010-Feb-19.17573 to 2010-Feb-19.77116)." Diameter approximately 0.041 km. from mean, weighted H=24.6.
2010 CANEODyS1601202215.56e-06-4.30-4.300NEODyS: "Based on 60 optical observations (of which 0 are rejected as outliers) from 2010/02/05.197 to 2010/02/14.098."

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 9 March '10

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

2142Grabbed MPEC 2010-E35 - 2009 XR2 - see above
1926Grabbed MPEC 2010-E34 - Comet C/2010 D3 (WISE) - see above
1601Noted that NEODyS has updated its 2010 CA risk assessment - see above
Noted that JPL Sentry has posted 2010 DG77 as an impact risk - see above
Grabbed MPEC 2010-E28 - Daily Orbit Update - see above
Grabbed MPEC 2010-E29 - 2010 DG77 - see above
Grabbed MPEC 2010-E30 - 2010 DH77 - see above
Grabbed MPEC 2010-E31 - 2010 DJ77 - see above
Grabbed MPEC 2010-E32 - 2010 EK12 - see above
Grabbed MPEC 2010-E33 - 2007 HD70 - see above
0639Grabbed MPEC 2010-E27 - 2010 DW1 - see above