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Contents  on 18 November '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 18 November '09

The MPC's NEO Confirmation Page has 11 listings: 1 new, 10 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and ten updated listings. Of these, ten were "one nighters." So far The Tracking News has counted a total of 20 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.

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New MPECs  on 18 November '09

Minor Planet Electronic Circulars

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


MPEC 2009-W30 - "17:39 UT" - 2009 WM1


MPEC 2009-W29 - "17:34 UT" - 2009 WL1


MPEC 2009-W28 - "17:26 UT" - 2009 WK1


MPEC 2009-W27 - "17:23 UT" - 2009 WJ1


MPEC 2009-W26 - "16:44 UT" - Observations of Comets


MPEC 2009-W25 - "16:17 UT" - Comet P/2009 U6 (LINEAR)


MPEC 2009-W24 - "16:13 UT" - Comet C/2009 U5 (Grauer)


MPEC 2009-W23 - "16:06 UT" - Comet P/2009 U4 (McNaught)


MPEC 2009-W22 - "16:02 UT" - Comet C/2009 U3 (Hill)


MPEC 2009-W21 - "15:48 UT" - Comet C/2009 T3 (LINEAR)


MPEC 2009-W20 - "15:42 UT" - Comet P/2009 T2 (La Sagra)


MPEC 2009-W19 - "15:37 UT" - Comet P/2009 SK280 (Spacewatch-Hill)


MPEC 2009-W18 - "15:32 UT" - Comet P/2009 S1 (Gibbs)


<< DOU on 18 Nov. '09 >>  MPEC 2009-W17 - "07:10 UT" - Daily Orbit Update


MPEC 2009-W16 - "03:18 UT" - 2007 XC10

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Observers  on 18 November '09

A total of 56 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 8 in MPECs 2009-W21, 2009-W22 & 2009-W26 -- C/2009 U3, C/2009 T3, C/2009 R1, C/2007 N3, C/2006 W3, C/2006 OF2, 88P, 30P
J10Alicante Obs. in Spain, 2 in MPEC 2009-W26 -- C/2006 S3, 22P
B37Ametlla del Valles Obs. in Spain, 1 in MPEC 2009-W26 -- C/2008 P1
J16An Carraig Obs. in Northern Ireland, 1 in MPEC 2009-W21 -- C/2009 T3
J51Atlante Obs. in the Canary Islands, 7 in MPECs 2009-W20 & 2009-W26 -- P/2009 T2, P/2009 Q4, 217P, 203P, 81P, 30P, 29P
A81Balzaretto Obs. in Italy, 2 in MPEC 2009-W26 -- C/2006 W3, 22P
B59Borken Obs. in Germany, 1 in MPEC 2009-W26 -- 157P
B81Caimari Obs. on Mallorca, 1 in MPEC 2009-W26 -- 203P
I10Campo Catino Austral Obs. (CAO) in Chile, 2 in MPEC 2009-W26 -- C/2009 R1, 68P
160Castelmartini Obs. in Italy, 9 in MPECs 2009-W20, 2009-W21, 2009-W22 & 2009-W26 -- C/2009 U3, C/2009 T3, P/2009 T2, C/2009 P2, C/2008 S3, C/2008 P1, P/2008 O2, 157P, 127P
703Catalina Sky Survey (CSS) in Arizona, 18 in MPECs 2009-W17, 2009-W22, 2009-W25, 2009-W26 & 2009-W30 -- 2009 WM1, 2009 WB, 2009 UX17, 2009 UM3, P/2009 U6, C/2009 U3, 2009 KL2, 2009 HD21, 2001 WW1, 1998 SE36, 1993 RA, 162980, 162181, 137084, 5751, 3361, 64P, 22P
A77Chante-Perdrix Obs. in France, 6 in MPECs 2009-W18, 2009-W19 & 2009-W26 -- P/2009 SK280, P/2009 S1, C/2009 K2, 157P, 117P, 29P
850Cordell-Lorenz Obs. in Tennessee, 5 in MPECs 2009-W20, 2009-W23, 2009-W25 & 2009-W26 -- P/2009 U6, P/2009 U4, P/2009 T2, P/2009 Q4, 217P
448Desert Moon Obs. in New Mexico, 1 in MPEC 2009-W17 -- 2009 SW
114Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2009-W29 -- 2009 WL1
C08Fiby Observatory, 15 in MPEC 2009-W26 -- C/2009 K2, C/2008 P1, C/2007 VO53, C/2007 N3, C/2006 W3, C/2006 S3, C/2006 Q1, 217P, 157P, 127P, 118P, 81P, 47P, 43P, 22P
683Goodricke-Pigott Obs. in Arizona, 1 in MPEC 2009-W26 -- 127P
J95Great Shefford Obs. in England, 1 in MPEC 2009-W28 -- 2009 WK1
442Gualba Obs. in Spain, 1 in MPEC 2009-W26 -- 29P
355Hadano Obs. in Japan, 6 in MPECs 2009-W20, 2009-W21, 2009-W22 & 2009-W26 -- C/2009 U3, C/2009 T3, P/2009 T2, P/2009 Q4, C/2008 P1, 217P
379Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2009-W26 -- C/2006 W3
987Isle of Man Obs. on the Isle of Man, 4 in MPEC 2009-W26 -- C/2007 N3, 217P, 118P, 30P
J28Jaen Obs. in Spain, 2 in MPEC 2009-W26 -- 203P, 127P
585Kiev Comet Station in the Ukraine, 6 in MPECs 2009-W20, 2009-W21 & 2009-W26 -- C/2009 T3, P/2009 T2, P/2009 Q4, 157P, 127P, 22P
D95Kurihara Obs., 2 in MPEC 2009-W26 -- 217P, 29P
704LINEAR in New Mexico, 26 in MPECs 2009-W17, 2009-W20, 2009-W21, 2009-W22, 2009-W25, 2009-W26 & 2009-W29 -- 2009 WL1, 2009 VW, 2009 UV18, 2009 UK28, P/2009 U6, C/2009 U3, C/2009 T3, P/2009 T2, P/2009 Q4, C/2008 S3, C/2007 N3, 30825, 22753, 162998, 162273, 152560, 138852, 4486, 4015, 3288, 1863, 1627, 203P, 127P, 81P, 64P
J31La Axarquia Obs. in Spain, 2 in MPEC 2009-W26 -- P/2009 Q4, 30P
212La Dehesilla Obs. in Spain, 2 in MPEC 2009-W26 -- 127P, 22P
J75La Sagra Obs. in Spain, 2 in MPECs 2009-W17 & 2009-W26 -- C/2006 OF2, 136617
J38La Vara Obs. in Spain, 9 in MPECs 2009-W20 & 2009-W26 -- P/2009 T2, C/2009 P2, C/2008 P1, C/2007 N3, C/2006 W3, 217P, 157P, 127P, 22P
J59Linceo Obs. in Spain, 1 in MPEC 2009-W26 -- 22P
130Lumezzane Obs. in Italy, 1 in MPEC 2009-W26 -- 224P
H01Magdalena Ridge Obs. (MRO) in New Mexico, 4 in MPECs 2009-W27, 2009-W28, 2009-W29 & 2009-W30 -- 2009 WM1, 2009 WL1, 2009 WK1, 2009 WJ1
118Modra Obs. in Slovakia, 2 in MPECs 2009-W25 & 2009-W26 -- P/2009 U6, P/2009 Q4
213Montcabre Obs. in Spain, 15 in MPECs 2009-W20, 2009-W21, 2009-W22 & 2009-W26 -- C/2009 U3, C/2009 T3, P/2009 T2, P/2009 Q4, C/2008 S3, C/2008 P1, C/2007 N3, 217P, 127P, 81P, 68P, 47P, 30P, 29P, 22P
945Monte Deva Obs. in Spain, 4 in MPEC 2009-W26 -- C/2007 N3, C/2006 OF2, 217P, 30P
900Moriyama Obs. in Japan, 19 in MPECs 2009-W20, 2009-W21, 2009-W22, 2009-W24 & 2009-W26 -- C/2009 U5, C/2009 U3, C/2009 T3, P/2009 T2, P/2009 Q5, P/2009 Q4, C/2008 S3, C/2008 P1, C/2007 VO53, C/2007 Q3, C/2007 N3, C/2006 W3, 217P, 157P, 118P, 88P, 47P, 30P, 22P
G96Mt. Lemmon Survey (MLS) in Arizona, 12 in MPECs 2009-W17, 2009-W19, 2009-W24, 2009-W26, 2009-W27 & 2009-W28 -- 2009 WK1, 2009 WJ1, 2009 WE, 2009 VA26, C/2009 U5, P/2009 SK280, P/2009 QG31, 2009 HB, 2004 KD1, 2000 OG8, 64P, 57P
J47Nazaret Obs. in Spain, 19 in MPECs 2009-W20, 2009-W21 & 2009-W26 -- C/2009 T3, P/2009 T2, C/2009 R1, P/2009 QG31, P/2009 Q4, C/2009 P2, C/2008 P1, C/2006 W3, C/2006 S3, 219P, 217P, 157P, 127P, 118P, 88P, 81P, 43P, 29P, 22P
B49Paus Obs. in Spain, 3 in MPECs 2009-W20 & 2009-W26 -- P/2009 T2, 217P, 203P
H23Pear Tree Obs. in Florida, 1 in MPEC 2009-W20 -- P/2009 T2
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-W26 -- C/2007 Q3
473Remanzacco Obs. in Italy, 4 in MPECs 2009-W20, 2009-W22 & 2009-W26 -- C/2009 U3, P/2009 T2, C/2006 W3, 22P
939Rodeno Obs. in Spain, 6 in MPECs 2009-W20 & 2009-W26 -- P/2009 T2, C/2008 P1, C/2006 W3, C/2006 Q1, 203P, 22P
B74Santa Maria de Montmagastrell Obs. in Spain, 7 in MPEC 2009-W26 -- P/2009 Q4, C/2007 Q3, 217P, 203P, 118P, 81P, 30P
204Schiaparelli Obs. in Italy, 16 in MPECs 2009-W17, 2009-W18, 2009-W19, 2009-W20, 2009-W23, 2009-W25, 2009-W26 & 2009-W29 -- 2009 WL1, 2009 VX, 2009 VW, 2009 VS, P/2009 U6, P/2009 U4, P/2009 T2, P/2009 SK280, P/2009 S1, P/2009 Q5, P/2009 Q4, C/2008 P1, P/2008 O2, C/2007 N3, 224P, 64P
691Spacewatch 0.9m telescope in Arizona, 9 in MPECs 2009-W17, 2009-W20 & 2009-W26 -- P/2009 T2, 2009 QH2, 2006 XA, 2002 VT85, 2001 WT1, 2001 SG286, 2000 WS67, 1990 UA, 57P
291Spacewatch 1.8m telescope in Arizona, 17 in MPECs 2009-W17, 2009-W26, 2009-W27, 2009-W28 & 2009-W30 -- 2009 WM1, 2009 WK1, 2009 WJ1, 2009 VL24, 2009 VA26, 2009 UZ17, 2009 UL20, 2009 UD2, 2009 UD19, 2009 SX17, 2009 SB100, 2006 UG64, 2006 GY2, 2005 NP1, 2005 HD4, 2001 XU, 117P
A71Stixendorf Obs. in Austria, 2 in MPECs 2009-W25 & 2009-W26 -- P/2009 U6, P/2009 Q4
6735Jim Young via Table Mtn. Obs. in southern California, 3 in MPECs 2009-W17, 2009-W29 & 2009-W30 -- 2009 WM1, 2009 WL1, 2009 WF
926Tenagra II Obs. in Arizona, 10 in MPECs 2009-W16, 2009-W17, 2009-W27, 2009-W28, 2009-W29 & 2009-W30 -- 2009 WM1, 2009 WL1, 2009 WK1, 2009 WJ1, 2009 WB, 2009 WA, 2009 VZ, 2009 VS25, 2009 VA26, 2007 XC10
B18Terskol Obs. in Russia, 6 in MPECs 2009-W24, 2009-W25 & 2009-W26 -- P/2009 U6, C/2009 U5, P/2009 Q4, C/2007 N3, 217P, 30P
H10Tzec Maun Obs. Mayhill in New Mexico, 8 in MPECs 2009-W20, 2009-W22, 2009-W25 & 2009-W26 -- P/2009 U6, C/2009 U3, P/2009 T2, 217P, 118P, 81P, 64P, 30P
D25Tzec Maun Obs. Pingelly in Western Australia, 2 in MPECs 2009-W20 & 2009-W23 -- P/2009 U4, P/2009 T2
H47Vicksburg Obs. in Mississippi, 7 in MPEC 2009-W26 -- P/2009 Q4, C/2006 W3, 217P, 81P, 30P, 29P, 22P
A79Zvezdno Obshtestvo Obs. in Bulgaria, 5 in MPECs 2009-W20, 2009-W24, 2009-W25, 2009-W26 & 2009-W29 -- 2009 WL1, P/2009 U6, C/2009 U5, P/2009 T2, P/2009 Q4
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 18 November '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 WM1JPL Sentry21002012-21089895.1e-05-1.65-2.410JPL: "Analysis based on 25 observations spanning 1.0411 days (2009-Nov-17.4641 to 2009-Nov-18.50524)." Diameter approximately 0.280 km. from mean, weighted H=20.4.
2009 WJ1JPL Sentry19302022-2107491.5e-07-4.98-5.960JPL: "Analysis based on 22 observations spanning 1.0820 days (2009-Nov-17.10881 to 2009-Nov-18.19086)." Diameter approximately 0.190 km. from mean, weighted H=21.2.
2009 WFNEODyS1522R E M O V E D-
JPL Sentry1522R E M O V E DJPL: Risk listing removed at 0950 UTC.
2009 VA26JPL Sentry15222017-206268.5e-09-5.51-5.680JPL: "Analysis based on 34 observations spanning 6.7553 days (2009-Nov-11.38063 to 2009-Nov-18.13595)." Diameter approximately 0.210 km. from mean, weighted H=21.1.
NEODyS1522R E M O V E D-

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 18 November '09

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

2100Noted that JPL Sentry has posted 2009 WM1 as an impact risk - see above
1930Noted that JPL Sentry has posted 2009 WJ1 as an impact risk - see above
1840Grabbed MPEC 2009-W27 - 2009 WJ1 - see above
Grabbed MPEC 2009-W28 - 2009 WK1 - see above
Grabbed MPEC 2009-W29 - 2009 WL1 - see above
Grabbed MPEC 2009-W30 - 2009 WM1 - see above
1709Grabbed MPEC 2009-W26 - Observations of Comets - see above
1637Grabbed MPEC 2009-W23 - Comet P/2009 U4 (McNaught) - see above
Grabbed MPEC 2009-W24 - Comet C/2009 U5 (Grauer) - see above
Grabbed MPEC 2009-W25 - Comet P/2009 U6 (LINEAR) - see above
1605Grabbed MPEC 2009-W18 - Comet P/2009 S1 (Gibbs) - see above
Grabbed MPEC 2009-W19 - Comet P/2009 SK280 (Spacewatch-Hill) - see above
Grabbed MPEC 2009-W20 - Comet P/2009 T2 (La Sagra) - see above
Grabbed MPEC 2009-W21 - Comet C/2009 T3 (LINEAR) - see above
Grabbed MPEC 2009-W22 - Comet C/2009 U3 (Hill) - see above
1522Noted that JPL Sentry has updated its 2009 VA26 risk assessment - see above
Noted that NEODyS has removed 2009 VA26 as an impact risk - see above
Noted that JPL Sentry has removed 2009 WF as an impact risk - see above
Noted that NEODyS has removed 2009 WF as an impact risk - see above
Grabbed MPEC 2009-W17 - Daily Orbit Update - see above
0708Grabbed MPEC 2009-W16 - 2007 XC10 - see above