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Contents  on 10 August '09

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 10 August '09

The MPC's NEO Confirmation Page has 1 listing: 1 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one updated listing. This was a "one nighter."

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

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New MPECs  on 10 August '09

Minor Planet Electronic Circulars

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


MPEC 2009-P37 - "14:33 UT" - Observations of Comets


MPEC 2009-P36 - "14:26 UT" - Comet C/2009 O4 (Hill)


MPEC 2009-P35 - "14:20 UT" - Comet C/2009 O3 (Hill)


<< DOU on 10 Aug. '09 >>  MPEC 2009-P34 - "06:06 UT" - Daily Orbit Update

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Observers  on 10 August '09

A total of 36 observing facilities appear in today's MPECs.

CodeObserver / observatory
J24Altamira Obs. in Spain, 13 in MPECs 2009-P36 & 2009-P37 -- C/2009 O4, P/2009 L2, C/2008 Q3, C/2008 P1, C/2008 N1, C/2008 FK75, C/2006 W3, C/2006 Q1, 217P, 88P, 65P, 47P, 43P
J51Atlante Obs. in the Canary Islands, 7 in MPECs 2009-P35 & 2009-P37 -- C/2009 O3, C/2008 P1, C/2008 N1, C/2006 W3, C/2006 Q1, 217P, 22P
J05Bootes Obs., 6 in MPECs 2009-P34, 2009-P36 & 2009-P37 -- 2009 OZ4, C/2009 O4, C/2006 W3, 2005 MC, 2002 NP1, 433
160Castelmartini Obs. in Italy, 3 in MPECs 2009-P36 & 2009-P37 -- C/2009 O4, P/2009 L2, C/2009 K2
A77Chante-Perdrix Obs. in France, 2 in MPEC 2009-P37 -- 169P, 65P
850Cordell-Lorenz Obs. in Tennessee, 3 in MPECs 2009-P35, 2009-P36 & 2009-P37 -- C/2009 O4, C/2009 O3, C/2009 K2
I21El Condor Obs. in Argentina, 13 in MPECs 2009-P34 & 2009-P37 -- 2009 OG, 2009 NH, 2009 MC9, 2009 HV77, 2007 RQ17, 2002 NP1, 2002 LV, 212546, 17274, 143651, 5626, 217P, 22P
E16Grove Creek Obs. in New South Wales, 2 in MPEC 2009-P37 -- C/2009 F4, 217P
379Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2009-P37 -- C/2006 W3
585Kiev Comet Station in the Ukraine, 2 in MPEC 2009-P37 -- P/2009 L2, 22P
J87La Canada Obs. in Spain, 1 in MPEC 2009-P37 -- 43P
212La Dehesilla Obs. in Spain, 3 in MPEC 2009-P37 -- C/2008 N1, C/2006 W3, 43P
J40Malaga Obs. in Spain, 2 in MPEC 2009-P37 -- C/2006 W3, 22P
E20Marsfield Obs., 1 in MPEC 2009-P37 -- 22P
232Masquefa Obs. in Spain, 2 in MPEC 2009-P37 -- C/2006 Q1, C/2005 L3
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2009-P34 -- 2009 OW6
213Montcabre Obs. in Spain, 4 in MPEC 2009-P37 -- P/2009 L2, C/2009 K2, C/2008 N1, C/2006 W3
945Monte Deva Obs. in Spain, 4 in MPEC 2009-P37 -- C/2006 W3, C/2006 Q1, 217P, 22P
B06Montseny Obs. in Spain, 3 in MPEC 2009-P37 -- C/2006 W3, 217P, 22P
900Moriyama Obs. in Japan, 10 in MPECs 2009-P36 & 2009-P37 -- C/2009 O4, P/2009 L2, C/2008 Q3, C/2008 N1, C/2006 W3, C/2006 S3, C/2005 L3, 88P, 65P, 22P
B69Owls & Ravens Obs. in Germany, 1 in MPEC 2009-P37 -- C/2006 W3
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 2 in MPEC 2009-P37 -- P/2009 L2, C/2009 K2
473Remanzacco Obs. in Italy, 1 in MPEC 2009-P37 -- C/2009 K2
I20Rio Cuarto Obs. in Argentina, 3 in MPEC 2009-P34 -- 2009 OX5, 1996 EO, 155334
939Rodeno Obs. in Spain, 3 in MPEC 2009-P37 -- C/2006 W3, C/2006 Q1, C/2005 L3
B70Sant Celoni Obs. in Spain, 1 in MPEC 2009-P37 -- C/2006 W3
204Schiaparelli Obs. in Italy, 7 in MPECs 2009-P35, 2009-P36 & 2009-P37 -- C/2009 O4, C/2009 O3, C/2008 P1, C/2008 FK75, C/2005 L3, 169P, 47P
510Siegen Obs. in Germany, 3 in MPEC 2009-P37 -- C/2006 W3, C/2006 Q1, 22P
B40Skylive Obs. in Italy, 3 in MPEC 2009-P37 -- C/2008 N1, C/2006 W3, 217P
071Smolyan Obs. in Bulgaria, 4 in MPEC 2009-P37 -- C/2008 N1, C/2006 W3, 217P, 22P
B01Taunus Obs. in Germany, 3 in MPECs 2009-P36 & 2009-P37 -- C/2009 O4, P/2009 L2, C/2006 S3
A16Tentlingen Obs. in Switzerland, 1 in MPEC 2009-P37 -- C/2006 Q1
B18Terskol Obs. in Russia, 7 in MPECs 2009-P35, 2009-P36 & 2009-P37 -- C/2009 O4, C/2009 O3, P/2009 L2, C/2009 K2, C/2008 P1, 217P, 22P
H53Thompsonville Obs. in Illinois, 3 in MPEC 2009-P37 -- C/2006 W3, C/2006 Q1, 22P
H10Tzec Maun Obs. Mayhill in New Mexico, 3 in MPECs 2009-P36 & 2009-P37 -- C/2009 O4, C/2008 P1, C/2006 Q1
D25Tzec Maun Obs. Pingelly in Western Australia, 2 in MPEC 2009-P37 -- 217P, 22P
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 10 August '09

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. Beginning Jan. 22nd, both are also posting impact solutions beyond 100 years for a few 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
2009 OW6JPL Sentry13052080-209929.0e-06-5.50-5.520JPL: "Analysis based on 54 observations spanning 13.174 days (2009-Jul-27.36058 to 2009-Aug-09.534873)." Diameter approximately 0.029 km. from mean, weighted H=25.3.
NEODyS1305208018.82e-06-5.51-5.510NEODyS: "Based on 56 optical observations (of which 2 are rejected as outliers) from 2009/07/27.361 to 2009/08/09.536."

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 10 August '09

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

1634Grabbed MPEC 2009-P35 - Comet C/2009 O3 (Hill) - see above
Grabbed MPEC 2009-P36 - Comet C/2009 O4 (Hill) - see above
Grabbed MPEC 2009-P37 - Observations of Comets - see above
1305Noted that JPL Sentry has updated its 2009 OW6 risk assessment - see above
Noted that NEODyS has updated its 2009 OW6 risk assessment - see above
Grabbed MPEC 2009-P34 - Daily Orbit Update - see above
Noted that the NEOCP has become active