Contents  on 15 August '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 15 August '10

The MPC's NEO Confirmation Page has 8 listings: 4 new, 4 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four new and four updated listings. Of these, two were "one nighters." So far The Tracking News has counted a total of ten 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 15 August '10

Minor Planet Electronic Circulars

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

MPEC 2010-P65 - "21:26 UT" - 2010 PS65

MPEC 2010-P64 - "17:32 UT" - 2006 OD5

<< DOU on 15 Aug. '10 >>  MPEC 2010-P63 - "06:12 UT" - Daily Orbit Update

Observers  on 15 August '10

Thirteen observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2010-P65 -- 2010 PS65
160Castelmartini Obs. in Italy, 5 in MPEC 2010-P63 -- 2010 OC, 2010 CB55, 2002 NE71, 242211, 19764
J95Great Shefford Obs. in England, 1 in MPEC 2010-P65 -- 2010 PS65
J28Jaen Obs. in Spain, 1 in MPEC 2010-P63 -- 23187
704LINEAR in New Mexico, 3 in MPECs 2010-P63 & 2010-P65 -- 2010 PS65, 168378, 5786
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-P64 -- 2006 OD5
474Mt. John Obs. in New Zealand, 3 in MPEC 2010-P63 -- 2010 PR10, 2010 PQ10, 2010 OP1
I20Rio Cuarto Obs. in Argentina, 2 in MPEC 2010-P63 -- 2010 PR10, 2010 LY63
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-P63 -- 88188
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2010-P63 -- 2010 PP2
291Spacewatch 1.8m telescope in Arizona, 4 in MPEC 2010-P63 -- 2010 ON101, 2010 OF101, 2010 OB101, 1998 HG49
I19Tanti Obs. in Argentina, 1 in MPEC 2010-P65 -- 2010 PS65
C51WISE in Earth polar orbit, 12 in MPEC 2010-P63 -- 86067, 85990, 85713, 242187, 230979, 218863, 162269, 152978, 152558, 137062, 12923, 4486
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 15 August '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 PS65JPL Sentry2358210211.6e-05-4.88-4.880JPL: "Analysis based on 19 observations spanning 2.0563 days (2010-Aug-13.29423 to 2010-Aug-15.350505)." Diameter approximately 0.043 km. from mean, weighted H=24.5.

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 15 August '10

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

2358Noted that JPL Sentry has posted 2010 PS65 as an impact risk - see above
2200Grabbed MPEC 2010-P65 - 2010 PS65 - see above
1907Grabbed MPEC 2010-P64 - 2006 OD5 - see above
1443Grabbed MPEC 2010-P63 - Daily Orbit Update - see above