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Contents  on 27 August '10

Resources:

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.

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NEOCP Activity  on 27 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.

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New MPECs  on 27 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-Q36 - "22:05 UT" - Comets C/2010 A12, 2010 A13, 2010 A14, 2010 A15, 2010 A16, 2010 A17


MPEC 2010-Q35 - "21:45 UT" - Comets C/2010 A6, 2010 A7, 2010 A8, 2010 A9, 2010 A10, 2010 A11 (SOHO)


<< DOU on 27 Aug. '10 >>  MPEC 2010-Q34 - "06:05 UT" - Daily Orbit Update

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Observers  on 27 August '10

Twelve observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 10 in MPEC 2010-Q34 -- 2010 PY75, 2010 PR66, 2010 PM10, 2010 PL9, 2010 MF1, 2010 KZ117, 2007 TY18, 2007 LL, 2004 SC56, 248818
B88Bigmuskie Obs. in Italy, 1 in MPEC 2010-Q34 -- 2010 PR66
127Bornheim Obs. in Germany, 5 in MPEC 2010-Q34 -- 2009 KD5, 85989, 161998, 5786, 4055
160Castelmartini Obs. in Italy, 15 in MPEC 2010-Q34 -- 2002 OS4, 2002 EY2, 66146, 66008, 243147, 242211, 23187, 152952, 152558, 5143, 4486, 4257, 4197, 3752, 1865
448Desert Moon Obs. in New Mexico, 4 in MPEC 2010-Q34 -- 2010 PY75, 2010 PY22, 2008 AT28, 2003 YO3
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 3 in MPEC 2010-Q34 -- 2010 PY22, 2010 PM9, 2010 NW117
C494HI1-A instrument (4) aboard STEREO-A in heliocentric orbit leading Earth, 3 in MPECs 2010-Q35 & 2010-Q36 -- C/2010 A7, C/2010 A6, C/2010 A13
B38Santa Mama Obs. in Italy, 4 in MPEC 2010-Q34 -- 2010 MF1, 2009 CQ5, 237442, 4055
2492LASCO Coronagraph 2 (SOHO C2) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 4 in MPECs 2010-Q35 & 2010-Q36 -- C/2010 A6, C/2010 A17, C/2010 A11, C/2010 A10
2493LASCO Coronagraph 3 (SOHO C3) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 9 in MPECs 2010-Q35 & 2010-Q36 -- C/2010 A9, C/2010 A8, C/2010 A7, C/2010 A16, C/2010 A15, C/2010 A14, C/2010 A12, C/2010 A11, C/2010 A10
A78Stia Obs. in Italy, 2 in MPEC 2010-Q34 -- 2007 VG189, 2001 RY11
C51WISE in Earth polar orbit, 11 in MPEC 2010-Q34 -- 2009 AV, 2007 VG189, 2006 XG1, 2006 CX10, 68278, 154029, 142464, 100926, 3753, 3671, 2212
I15Wishing Star Obs. in Rhode Island, 4 in MPEC 2010-Q34 -- 2010 MF1, 2009 CQ5, 2007 LL, 53789
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

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Impact Risk Monitoring  on 27 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.
0000NNN000

Object
Risk
Monitor		When
Noted
UTC		0000T0000
Year
Range
VI
#		000NN00
Prob
Cum		T0000
PS
Cum		T0000
PS
Max
T
S

Notes for Today's Latest Risk Assessments
2010 PR66JPL Sentry1526210715.5e-10-6.72-6.720JPL: "Analysis based on 116 observations spanning 11.634 days (2010-Aug-15.2648 to 2010-Aug-26.89845)." 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.

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Chronology  on 27 August '10

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

2237Grabbed MPEC 2010-Q36 - Comets C/2010 A12, 2010 A13, 2010 A14, 2010 A15, 2010 A16, 2010 A17 - see above
2208Grabbed MPEC 2010-Q35 - Comets C/2010 A6, 2010 A7, 2010 A8, 2010 A9, 2010 A10, 2010 A11 (SOHO) - see above
1526Noted that JPL Sentry has updated its 2010 PR66 risk assessment - see above
Grabbed MPEC 2010-Q34 - Daily Orbit Update - see above