Contents  on 12 July '10

Note: A/CC news pages will update infrequently for much of the remainder of July.


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 12 July '10

The MPC's NEO Confirmation Page has 6 listings: 3 new, 3 updated

When last checked at 1435 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new and three updated listings. Of these, two were "one nighters."

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 12 July '10

Minor Planet Electronic Circulars

As of last check at 1435 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 12 July '10 >>  MPEC 2010-N52 - "06:10 UT" - Daily Orbit Update

Observers  on 12 July '10

Ten observing facilities appear in today's MPEC.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 9 in MPEC 2010-N52 -- 2010 NL, 2010 NK1, 2010 NH, 2010 MW1, 2010 MU112, 2010 MN51, 2010 MH1, 2010 MF1, 2010 CL18
160Castelmartini Obs. in Italy, 4 in MPEC 2010-N52 -- 2006 KL21, 19764, 153842, 111253
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2010-N52 -- 100926
157Frasso Sabino Obs. in Italy, 4 in MPEC 2010-N52 -- 2010 LE15, 2010 EH20, 2006 KL21, 100926
J95Great Shefford Obs. in England, 1 in MPEC 2010-N52 -- 2010 NG
J75La Sagra Obs. in Spain, 1 in MPEC 2010-N52 -- 9202
A06Mataro Obs. in Spain, 1 in MPEC 2010-N52 -- 2010 EH20
932McCarthy Obs. in Connecticut, 2 in MPEC 2010-N52 -- 2009 KD5, 164400
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-N52 -- 153814
B38Santa Mama Obs. in Italy, 2 in MPEC 2010-N52 -- 241370, 152889
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 12 July '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 1435 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 NHJPL Sentry12232077-210741.7e-06-6.29-6.640JPL: "Analysis based on 45 observations spanning 6.8919 days (2010-Jul-04.42235 to 2010-Jul-11.31428)." Diameter approximately 0.026 km. from mean, weighted H=25.6.
NEODyS12232077-208929.08e-07-6.50-6.550NEODyS: "Based on 45 optical observations (of which 0 are rejected as outliers) from 2010/07/04.423 to 2010/07/11.315."
2010 MU112JPL Sentry12232033-207253.9e-08-4.90-5.070JPL: "Analysis based on 23 observations spanning 11.300 days (2010-Jun-30.07214 to 2010-Jul-11.371741)." Diameter approximately 0.220 km. from mean, weighted H=21.0.
NEODyS12232033-209085.03e-08-4.79-4.950NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2010/06/30.073 to 2010/07/11.373."
153814 2001 WN5NEODyS12232106-210837.76e-11-7.18-7.480NEODyS: "Based on 229 optical observations (of which 4 are rejected as outliers) from 1996/02/10.397 to 2010/07/11.414."

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 12 July '10

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

1223Noted that NEODyS has updated its 153814 2001 WN5 risk assessment - see above
Noted that JPL Sentry has updated its 2010 MU112 risk assessment - see above
Noted that NEODyS has updated its 2010 MU112 risk assessment - see above
Noted that JPL Sentry has updated its 2010 NH risk assessment - see above
Noted that NEODyS has updated its 2010 NH risk assessment - see above
Grabbed MPEC 2010-N52 - Daily Orbit Update - see above