Contents  on 6 July '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 6 July '10

The MPC's NEO Confirmation Page has 6 listings: 4 new, 2 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four new and two updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of eleven 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 6 July '10

Minor Planet Electronic Circulars

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

MPEC 2010-N22 - "15:33 UT" - 2009 MS

MPEC 2010-N21 - "15:26 UT" - 2006 WF129

MPEC 2010-N20 - "15:14 UT" - 2010 NM

MPEC 2010-N19 - "15:10 UT" - 2010 NL

MPEC 2010-N18 - "15:06 UT" - 2010 NK

<< DOU on 6 July '10 >>  MPEC 2010-N17 - "06:10 UT" - Daily Orbit Update

Observers  on 6 July '10

Fifteen observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 20 in MPECs 2010-N17, 2010-N20 & 2010-N22 -- 2010 NM, 2010 NB, 2010 NA, 2010 MW1, 2010 MH1, 2010 MF1, 2010 KA8, 2010 JG87, 2010 GR75, 2010 GA34, 2010 EV45, 2010 EC135, 2009 XC2, 2009 MS, 2005 EY223, 2004 QC17, 2004 JX20, 2002 JE9, 153002, 136564
J51Atlante Obs. in the Canary Islands, 1 in MPEC 2010-N17 -- 2009 KD5
703Catalina Sky Survey in Arizona, 1 in MPEC 2010-N17 -- 230979
448Desert Moon Obs. in New Mexico, 2 in MPEC 2010-N17 -- 2004 BW58, 1995 SA
695]Mark Trueblood via Kitt Peak Natl. Obs. (KPNO) in Arizona, 2 in MPECs 2010-N19 & 2010-N20 -- 2010 NM, 2010 NL
H13Lenomiya Obs. in Arizona, 1 in MPEC 2010-N17 -- 2010 NA
932McCarthy Obs. in Connecticut, 1 in MPEC 2010-N17 -- 2010 LE15
G96Mt. Lemmon Survey (MLS) in Arizona, 4 in MPECs 2010-N17, 2010-N19 & 2010-N20 -- 2010 NM, 2010 NL, 2010 JL33, 5731
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2010-N17 -- 2002 BF25
608NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2010-N17 -- 2002 BF25
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-N18 -- 2010 NK
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2010-N17 -- 141765
291Spacewatch 1.8m telescope in Arizona, 13 in MPECs 2010-N17 & 2010-N21 -- 2010 MH1, 2010 LU108, 2010 LQ33, 2010 JG87, 2010 JF87, 2010 GX62, 2010 FY80, 2010 FC81, 2009 XD, 2009 JO2, 2006 WF129, 1995 SA, 153842
C51WISE in Earth polar orbit, 6 in MPEC 2010-N17 -- 2010 GT7, 2010 FQ, 2010 EH20, 2008 EV5, 2008 AB31, 2006 BN6
I15Wishing Star Obs. in Rhode Island, 3 in MPEC 2010-N17 -- 2010 EV45, 242191, 7977
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 6 July '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 NKJPL Sentry17302100-2110104.9e-08-7.02-7.440JPL: "Analysis based on 10 observations spanning .94103 days (2010-Jul-03.67372 to 2010-Jul-04.61475)." Diameter approximately 0.048 km. from mean, weighted H=24.2.
2010 NHNEODyS15052077-208931.28e-06-6.28-6.310NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2010/07/04.423 to 2010/07/05.383."
2010 MU112NEODyS15052019-2090251.62e-08-5.14-5.640NEODyS: "Based on 14 optical observations (of which 0 are rejected as outliers) from 2010/06/30.073 to 2010/07/04.369."

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 6 July '10

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

1730Noted that JPL Sentry has posted 2010 NK as an impact risk - see above
1614Grabbed MPEC 2010-N18 - 2010 NK - see above
Grabbed MPEC 2010-N19 - 2010 NL - see above
Grabbed MPEC 2010-N20 - 2010 NM - see above
Grabbed MPEC 2010-N21 - 2006 WF129 - see above
Grabbed MPEC 2010-N22 - 2009 MS - see above
1505Noted that NEODyS has posted 2010 MU112 as an impact risk - see above
Noted that NEODyS has posted 2010 NH as an impact risk - see above
Grabbed MPEC 2010-N17 - Daily Orbit Update - see above