Contents  on 26 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 26 August '10

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty and hasn't been noted by The Tracking News as being active yet today (checked at 2358 UTC). It was last noted active on August 22nd.

New MPECs  on 26 August '10

Minor Planet Electronic Circulars

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

MPEC 2010-Q33 - "18:32 UT" - 2008 TQ2

MPEC 2010-Q32 - "13:51 UT" - PHAs

MPEC 2010-Q31 - "13:51 UT" - Unusual Minor Planets

MPEC 2010-Q30 - "13:51 UT" - Amors

MPEC 2010-Q29 - "13:51 UT" - Atens and Apollos

MPEC 2010-Q28 - "13:47 UT" - Distant Minor Planets

MPEC 2010-Q27 - "13:46 UT" - Observable Comets

<< DOU on 26 Aug. '10 >>  MPEC 2010-Q26 - "06:08 UT" - Daily Orbit Update

Observers  on 26 August '10

Thirteen observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 7 in MPEC 2010-Q26 -- 2010 PY75, 2010 PM9, 2010 PM10, 2010 OC, 2010 MF1, 2005 GE59, 2004 BW58
B88Bigmuskie Obs. in Italy, 1 in MPEC 2010-Q26 -- 2010 PR66
599CINEOS in Italy, 1 in MPEC 2010-Q26 -- 2007 XT58
160Castelmartini Obs. in Italy, 17 in MPEC 2010-Q26 -- 2010 PM9, 2010 OC, 2010 MF1, 2010 KZ117, 2010 FO92, 2007 VG189, 2005 GE59, 2002 OS4, 2002 NE71, 23187, 19764, 152558, 143381, 7336, 5786, 4257, 3752
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 4 in MPEC 2010-Q26 -- 2010 PR66, 2010 PR10, 2010 PM9, 2010 MF1
J75La Sagra Obs. in Spain, 1 in MPEC 2010-Q26 -- 4954
5682David Tholen's team on Mauna Kea in Hawaii, 2 in MPECs 2010-Q26 & 2010-Q33 -- 2008 TQ2, 2007 GG
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPEC 2010-Q26 -- 2010 LY63, 2007 XT58
B38Santa Mama Obs. in Italy, 4 in MPEC 2010-Q26 -- 2010 MF1, 2007 VG189, 243025, 3752
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2010-Q26 -- 2010 LY63
291Spacewatch 1.8m telescope in Arizona, 2 in MPEC 2010-Q26 -- 2010 LY63, 2007 XT58
A78Stia Obs. in Italy, 3 in MPEC 2010-Q26 -- 2010 PM9, 53789, 100926
147Suno Obs. in Italy, 1 in MPEC 2010-Q26 -- 2010 PR66
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 26 August '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2358 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. 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 PR66JPL Sentry1431210711.1e-08-5.42-5.420JPL: "Analysis based on 109 observations spanning 10.899 days (2010-Aug-15.2648 to 2010-Aug-26.16416)." Diameter approximately 0.450 km. from mean, weighted H=19.4.

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 26 August '10

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

1921Grabbed MPEC 2010-Q33 - 2008 TQ2 - see above
1431Noted that JPL Sentry has updated its 2010 PR66 risk assessment - see above
Grabbed MPEC 2010-Q26 - Daily Orbit Update - see above
Grabbed MPEC 2010-Q27 - Observable Comets - see above
Grabbed MPEC 2010-Q28 - Distant Minor Planets - see above
Grabbed MPEC 2010-Q29 - Atens and Apollos - see above
Grabbed MPEC 2010-Q30 - Amors - see above
Grabbed MPEC 2010-Q31 - Unusual Minor Planets - see above
Grabbed MPEC 2010-Q32 - PHAs - see above