Contents  on 24 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.

NEOCP Activity  on 24 November '09

The MPC's NEO Confirmation Page has 10 listings: 2 new, 8 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and eight updated listings. Of these, six were "one nighters." So far The Tracking News has counted a total of eighteen 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 24 November '09

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been eighteen MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2009-W103 - "19:42 UT" - Comet C/2009 W2 (Boattini)


MPEC 2009-W102 - "17:57 UT" - Observations of Comets


MPEC 2009-W101 - "17:45 UT" - Comet P/2009 W1 (Hill)


MPEC 2009-W100 - "17:37 UT" - Comet P/2009 U6 (LINEAR)


MPEC 2009-W99 - "17:32 UT" - Comet P/2009 U4 (McNaught)


MPEC 2009-W98 - "17:27 UT" - Comet C/2009 U3 (Hill)


MPEC 2009-W97 - "17:22 UT" - Comet C/2009 T3 (LINEAR)


MPEC 2009-W96 - "17:17 UT" - Comet P/2009 T2 (La Sagra)


MPEC 2009-W95 - "17:12 UT" - Comet P/2009 SK280 (Spacewatch-Hill)


MPEC 2009-W94 - "17:07 UT" - Comet P/2009 S1 (Gibbs)


MPEC 2009-W93 - "16:30 UT" - 2009 WG54


MPEC 2009-W92 - "16:24 UT" - 2009 WF54


MPEC 2009-W91 - "12:29 UT" - 2009 WD54


MPEC 2009-W90 - "12:26 UT" - 2009 WC54


MPEC 2009-W89 - "12:24 UT" - 2009 WB54


MPEC 2009-W88 - "12:20 UT" - 2009 WA54


MPEC 2009-W87 - "12:17 UT" - 2009 WZ53


<< DOU on 24 Nov. '09 >>  MPEC 2009-W86 - "07:12 UT" - Daily Orbit Update

Observers  on 24 November '09

A total of 62 observing facilities appear in today's MPECs.

CodeObserver / observatory
J94Abbeydale Obs. in England, 1 in MPEC 2009-W86 -- 138852
349Ageo Obs. in Japan, 12 in MPECs 2009-W95, 2009-W96, 2009-W101 & 2009-W102 -- P/2009 W1, P/2009 T2, P/2009 SK280, 228P, 225P, 217P, 169P, 145P, 127P, 118P, 68P, 43P
B54Ager Obs. in Spain, 1 in MPEC 2009-W102 -- 137P
J10Alicante Obs. in Spain, 2 in MPEC 2009-W102 -- C/2008 P1, C/2006 Q1
H21Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 6 in MPEC 2009-W86 -- 2009 WV7, 2009 WD7, 2009 WD, 2009 VS, 2009 VQ, 2009 VP
J51Atlante Obs. in the Canary Islands, 8 in MPECs 2009-W96, 2009-W98 & 2009-W102 -- C/2009 U3, P/2009 T2, C/2008 P1, 217P, 203P, 127P, 30P, 22P
215Buchloe Obs. in Germany, 24 in MPECs 2009-W95, 2009-W96, 2009-W98, 2009-W101 & 2009-W102 -- P/2009 W1, C/2009 U3, P/2009 T2, P/2009 SK280, C/2009 P2, C/2008 Q3, C/2008 P1, C/2007 U1, C/2007 Q3, C/2007 N3, C/2006 W3, C/2006 S3, C/2006 Q1, C/2006 OF2, 203P, 157P, 145P, 127P, 88P, 81P, 43P, 30P, 29P, 22P
J02Busot Obs. in Spain, 1 in MPEC 2009-W102 -- 30P
I10Campo Catino Austral Obs. (CAO) in Chile, 23 in MPECs 2009-W94, 2009-W96, 2009-W99, 2009-W100, 2009-W101 & 2009-W102 -- P/2009 W1, P/2009 U6, P/2009 U4, P/2009 T2, P/2009 S1, P/2009 Q5, P/2009 Q4, C/2009 P2, C/2009 O4, C/2008 P1, C/2007 N3, C/2007 G1, C/2006 S3, C/2006 OF2, 217P, 203P, 169P, 127P, 118P, 81P, 30P, 29P, 22P
160Castelmartini Obs. in Italy, 7 in MPECs 2009-W96, 2009-W97, 2009-W98 & 2009-W102 -- C/2009 U3, C/2009 T3, P/2009 T2, C/2008 S3, C/2008 P1, 157P, 127P
703Catalina Sky Survey (CSS) in Arizona, 26 in MPECs 2009-W86, 2009-W94, 2009-W97, 2009-W102 & 2009-W103 -- 2009 WR25, 2009 WC26, C/2009 W2, 2009 TK8, C/2009 T3, P/2009 S1, P/2009 O3, 2008 WB59, C/2008 P1, 2007 UR3, 2004 VA15, 35396, 217683, 17274, 16816, 162998, 162273, 141354, 11398, 5587, 3691, 1943, 433, 225P, 222P, 217P
A77Chante-Perdrix Obs. in France, 11 in MPECs 2009-W96, 2009-W101 & 2009-W102 -- P/2009 W1, P/2009 T2, C/2008 P1, C/2007 Q3, C/2006 W3, 169P, 127P, 94P, 81P, 59P, 29P
J01Cielo Profundo Obs. in Spain, 5 in MPECs 2009-W96, 2009-W98 & 2009-W102 -- C/2009 U3, P/2009 T2, 228P, 203P, 30P
850Cordell-Lorenz Obs. in Tennessee, 5 in MPECs 2009-W96, 2009-W97, 2009-W101 & 2009-W102 -- P/2009 W1, C/2009 T3, P/2009 T2, C/2009 P2, 81P
J27El Guijo Obs. in Spain, 1 in MPEC 2009-W97 -- C/2009 T3
114Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2009-W86 -- 2009 NA
A27Eridanus Obs. in Germany, 1 in MPEC 2009-W86 -- 159402
372Geisei Obs. in Japan, 4 in MPECs 2009-W98 & 2009-W102 -- C/2009 U3, P/2009 Q4, 217P, 29P
683Goodricke-Pigott Obs. in Arizona, 2 in MPEC 2009-W102 -- 157P, 127P
651Grasslands Obs. in Arizona, 1 in MPEC 2009-W89 -- 2009 WB54
J95Great Shefford Obs. in England, 3 in MPECs 2009-W86 & 2009-W88 -- 2009 WV51, 2009 WV25, 2009 WA54
442Gualba Obs. in Spain, 2 in MPECs 2009-W86 & 2009-W102 -- 4015, 29P
379Hamamatsu-Yuto Obs. in Japan, 6 in MPECs 2009-W86 & 2009-W102 -- 2009 WN25, 2009 NA, C/2006 W3, 2006 UR, 2005 RQ6, 22P
750Hobbs Obs. in Wisconsin, 3 in MPEC 2009-W102 -- C/2006 S3, 157P, 22P
J28Jaen Obs. in Spain, 2 in MPEC 2009-W102 -- C/2007 N3, 137P
682Kanab Obs. in Utah, 1 in MPEC 2009-W103 -- C/2009 W2
D95Kurihara Obs., 5 in MPEC 2009-W102 -- C/2007 Q3, C/2006 W3, 217P, 88P, 22P
704LINEAR in New Mexico, 26 in MPECs 2009-W86, 2009-W96, 2009-W97, 2009-W98, 2009-W99, 2009-W100 & 2009-W102 -- 2009 WP25, 2009 WL1, 2009 WB, P/2009 U6, P/2009 U4, C/2009 U3, 2009 TK8, C/2009 T3, P/2009 T2, 2009 NA, 2009 KC3, C/2008 S3, C/2007 N3, 2006 UR, C/2006 OF2, 2001 WW1, 2000 WK10, 5646, 3200, 203P, 137P, 94P, 47P, 31P, 30P, 22P
J38La Vara Obs. in Spain, 12 in MPECs 2009-W96 & 2009-W102 -- P/2009 T2, P/2009 Q4, C/2008 P1, C/2006 W3, 217P, 157P, 127P, 88P, 47P, 30P, 29P, 22P
H01Magdalena Ridge Obs. (MRO) in New Mexico, 2 in MPECs 2009-W90 & 2009-W103 -- 2009 WC54, C/2009 W2
J40Malaga Obs. in Spain, 2 in MPEC 2009-W102 -- P/2009 Q4, 118P
J45Montana Cabreja Obs. in the Canary Islands, 6 in MPEC 2009-W102 -- C/2006 W3, 217P, 157P, 118P, 88P, 22P
945Monte Deva Obs. in Spain, 6 in MPEC 2009-W102 -- C/2008 P1, C/2007 N3, 217P, 118P, 30P, 22P
900Moriyama Obs. in Japan, 18 in MPECs 2009-W94, 2009-W97, 2009-W98, 2009-W100, 2009-W101 & 2009-W102 -- P/2009 W1, P/2009 U6, C/2009 U3, C/2009 T3, P/2009 S1, P/2009 Q4, C/2009 O4, C/2007 Q3, C/2007 G1, 203P, 157P, 137P, 127P, 88P, 81P, 47P, 29P, 22P
G96Mt. Lemmon Survey (MLS) in Arizona, 16 in MPECs 2009-W86, 2009-W87, 2009-W88, 2009-W89, 2009-W90, 2009-W91, 2009-W92, 2009-W93, 2009-W100, 2009-W102 & 2009-W103 -- 2009 WZ53, 2009 WN25, 2009 WG54, 2009 WF54, 2009 WD54, 2009 WC54, 2009 WB54, 2009 WA54, C/2009 W2, P/2009 U6, 2005 EJ, 1999 YC, 89136, 162168, 138852, 57P
J93Mt. Tuffley Obs. in England, 3 in MPEC 2009-W86 -- 217807, 159402, 433
A13Naef Obs. in Switzerland, 1 in MPEC 2009-W102 -- P/2009 O3
J47Nazaret Obs. in Spain, 16 in MPECs 2009-W96, 2009-W97, 2009-W100 & 2009-W102 -- P/2009 U6, C/2009 T3, P/2009 T2, P/2009 Q4, C/2008 P1, C/2006 W3, C/2006 S3, 217P, 169P, 157P, 137P, 127P, 88P, 43P, 29P, 22P
D92Osaki Obs. in Japan, 3 in MPEC 2009-W102 -- C/2006 W3, 169P, 22P
B49Paus Obs. in Spain, 3 in MPEC 2009-W102 -- 203P, 47P, 30P
H23Pear Tree Obs. in Florida, 1 in MPEC 2009-W96 -- P/2009 T2
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 6 in MPECs 2009-W96, 2009-W97, 2009-W98 & 2009-W102 -- C/2009 U3, C/2009 T3, P/2009 T2, C/2008 S3, C/2007 N3, 217P
J53Posadas Obs. in Spain, 9 in MPECs 2009-W86, 2009-W96, 2009-W97, 2009-W98 & 2009-W102 -- C/2009 U3, C/2009 T3, P/2009 T2, C/2008 P1, 4015, 203P, 157P, 127P, 22P
H06RAS Obs. Mayhill in New Mexico, 8 in MPECs 2009-W98, 2009-W100, 2009-W101 & 2009-W102 -- P/2009 W1, P/2009 U6, C/2009 U3, P/2009 Q4, C/2008 Q3, C/2007 Q3, C/2006 OF2, 203P
473Remanzacco Obs. in Italy, 4 in MPECs 2009-W96, 2009-W98 & 2009-W102 -- C/2009 U3, P/2009 T2, C/2006 W3, 22P
939Rodeno Obs. in Spain, 3 in MPECs 2009-W96 & 2009-W102 -- P/2009 T2, 203P, 22P
H36Sandlot Obs. in Kansas, 1 in MPEC 2009-W86 -- 2009 TG8
B56Sant Pere Obs. in Spain, 1 in MPEC 2009-W102 -- C/2006 W3
B74Santa Maria de Montmagastrell Obs. in Spain, 9 in MPEC 2009-W102 -- C/2007 Q3, C/2006 W3, 217P, 203P, 169P, 88P, 43P, 30P, 22P
204Schiaparelli Obs. in Italy, 7 in MPECs 2009-W101 & 2009-W102 -- P/2009 W1, C/2007 U1, 228P, 222P, 68P, 43P, 31P
691Spacewatch 0.9m telescope in Arizona, 7 in MPECs 2009-W86 & 2009-W102 -- 2009 KK8, 33342, 22753, 5693, 203P, 94P, 31P
291Spacewatch 1.8m telescope in Arizona, 18 in MPECs 2009-W86, 2009-W89, 2009-W92 & 2009-W93 -- 2009 WQ25, 2009 WM6, 2009 WM1, 2009 WK6, 2009 WJ1, 2009 WG7, 2009 WG54, 2009 WF54, 2009 WD11, 2009 WB54, 2009 WB11, 2009 VZ25, 2009 UQ5, 2009 UM, 2009 RB4, 2007 AH12, 2002 VD118, 223456
A71Stixendorf Obs. in Austria, 9 in MPECs 2009-W86, 2009-W96, 2009-W97, 2009-W98 & 2009-W102 -- C/2009 U3, C/2009 T3, P/2009 T2, P/2009 Q4, C/2007 Q3, 4015, 217P, 81P, 29P
673Table Mtn. Obs. in southern California, 1 in MPEC 2009-W96 -- P/2009 T2
926Tenagra II Obs. in Arizona, 8 in MPECs 2009-W87, 2009-W88, 2009-W89, 2009-W90, 2009-W91, 2009-W92, 2009-W93 & 2009-W103 -- 2009 WZ53, 2009 WG54, 2009 WF54, 2009 WD54, 2009 WC54, 2009 WB54, 2009 WA54, C/2009 W2
B18Terskol Obs. in Russia, 1 in MPEC 2009-W103 -- C/2009 W2
H10Tzec Maun Obs. Mayhill in New Mexico, 10 in MPECs 2009-W94, 2009-W96, 2009-W98, 2009-W101 & 2009-W102 -- P/2009 W1, C/2009 U3, P/2009 T2, P/2009 S1, C/2007 Q3, 225P, 217P, 203P, 118P, 30P
B51Vallauris Obs. in France, 1 in MPEC 2009-W102 -- C/2008 P1
H47Vicksburg Obs. in Mississippi, 6 in MPEC 2009-W102 -- P/2009 Q4, 217P, 118P, 81P, 30P, 29P
I15Wishing Star Obs. in Rhode Island, 1 in MPEC 2009-W86 -- 162273
367Yatsuka Obs. in Japan, 4 in MPECs 2009-W86 & 2009-W102 -- 2009 WN25, C/2008 Q3, C/2007 Q3, 81P
A79Zvezdno Obshtestvo Obs. in Bulgaria, 4 in MPECs 2009-W100, 2009-W101 & 2009-W102 -- P/2009 W1, P/2009 U6, 81P, 59P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 24 November '09

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS 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. 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 WD54JPL Sentry17192048-21091442.8e-06-7.75-8.410JPL: "Analysis based on 15 observations spanning .12495 days (2009-Nov-24.29954 to 2009-Nov-24.42449)." Diameter approximately 0.006 km. from mean, weighted H=28.7.
2009 WZ53JPL Sentry15092015-2109669.8e-08-5.78-5.940JPL: "Analysis based on 18 observations spanning 1.1753 days (2009-Nov-23.28123 to 2009-Nov-24.45654)." Diameter approximately 0.051 km. from mean, weighted H=24.1.
2009 WR52NEODyS15092027-2089332.89e-06-7.16-7.430NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2009/11/23.220 to 2009/11/23.400."
2009 WQ52NEODyS15092037-208644.25e-07-7.61-7.710NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2009/11/23.200 to 2009/11/23.385."
2009 WX51NEODyS15092015-20902131.52e-07-4.06-5.250NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2009/11/22.250 to 2009/11/23.556."
2009 WQ25JPL Sentry15092090-209421.0e-07-6.53-6.800JPL: "Analysis based on 24 observations spanning 2.9289 days (2009-Nov-21.16281 to 2009-Nov-24.0917)." Diameter approximately 0.055 km. from mean, weighted H=23.9.
NEODyS15092029-209034.62e-08-6.48-6.670NEODyS: "Based on 24 optical observations (of which 0 are rejected as outliers) from 2009/11/21.164 to 2009/11/24.092."
2009 WN25JPL Sentry1509203816.6e-10-5.03-5.030JPL: "Analysis based on 54 observations spanning 1.4001 days (2009-Nov-22.1489 to 2009-Nov-23.54898)." Diameter approximately 0.760 km. from mean, weighted H=18.2.
NEODyS1509203816.23e-10-5.06-5.060NEODyS: "Based on 57 optical observations (of which 3 are rejected as outliers) from 2009/11/22.150 to 2009/11/23.550."
2009 WM1JPL Sentry20052018-21061161.9e-04-0.95-1.241JPL: "Analysis based on 49 observations spanning 6.0057 days (2009-Nov-17.4641 to 2009-Nov-23.4698)." Diameter approximately 0.280 km. from mean, weighted H=20.4.
NEODyS15092018-20901161.73e-04-0.97-1.261NEODyS: "Based on 49 optical observations (of which 0 are rejected as outliers) from 2009/11/17.465 to 2009/11/23.471. NOTE: The Virtual Impactors in 2018/11/22.954, 2027/11/23.215 and 2032/11/22.403 ... are rated as Torino Scale 1."
2009 WJ1JPL Sentry1509210918.7e-10-7.30-7.300JPL: "Analysis based on 40 observations spanning 6.9598 days (2009-Nov-17.10881 to 2009-Nov-24.06865)." Diameter approximately 0.210 km. from mean, weighted H=21.0.
NEODyS15092057-208033.03e-08-5.64-5.730NEODyS: "Based on 40 optical observations (of which 0 are rejected as outliers) from 2009/11/17.110 to 2009/11/24.069."

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 24 November '09

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

2005Noted that JPL Sentry has updated its 2009 WM1 risk assessment - see above
Grabbed MPEC 2009-W103 - Comet C/2009 W2 (Boattini) - see above
1820Grabbed MPEC 2009-W101 - Comet P/2009 W1 (Hill) - see above
Grabbed MPEC 2009-W102 - Observations of Comets - see above
1748Grabbed MPEC 2009-W96 - Comet P/2009 T2 (La Sagra) - see above
Grabbed MPEC 2009-W97 - Comet C/2009 T3 (LINEAR) - see above
Grabbed MPEC 2009-W98 - Comet C/2009 U3 (Hill) - see above
Grabbed MPEC 2009-W99 - Comet P/2009 U4 (McNaught) - see above
Grabbed MPEC 2009-W100 - Comet P/2009 U6 (LINEAR) - see above
1719Noted that JPL Sentry has posted 2009 WD54 as an impact risk - see above
Grabbed MPEC 2009-W94 - Comet P/2009 S1 (Gibbs) - see above
Grabbed MPEC 2009-W95 - Comet P/2009 SK280 (Spacewatch-Hill) - see above
1639Grabbed MPEC 2009-W92 - 2009 WF54 - see above
Grabbed MPEC 2009-W93 - 2009 WG54 - see above
1509Noted that JPL Sentry has updated its 2009 WJ1 risk assessment - see above
Noted that NEODyS has updated its 2009 WJ1 risk assessment - see above
Noted that NEODyS has updated its 2009 WM1 risk assessment - see above
Noted that JPL Sentry has posted 2009 WN25 as an impact risk - see above
Noted that NEODyS has posted 2009 WN25 as an impact risk - see above
Noted that JPL Sentry has updated its 2009 WQ25 risk assessment - see above
Noted that NEODyS has updated its 2009 WQ25 risk assessment - see above
Noted that NEODyS has posted 2009 WQ52 as an impact risk - see above
Noted that NEODyS has posted 2009 WR52 as an impact risk - see above
Noted that NEODyS has posted 2009 WX51 as an impact risk - see above
Noted that JPL Sentry has posted 2009 WZ53 as an impact risk - see above
Grabbed MPEC 2009-W86 - Daily Orbit Update - see above
Grabbed MPEC 2009-W87 - 2009 WZ53 - see above
Grabbed MPEC 2009-W88 - 2009 WA54 - see above
Grabbed MPEC 2009-W89 - 2009 WB54 - see above
Grabbed MPEC 2009-W90 - 2009 WC54 - see above
Grabbed MPEC 2009-W91 - 2009 WD54 - see above