Contents  on 30 September '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 30 September '09

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

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one updated listing. This was a "one nighter." So far The Tracking News has counted a total of six 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 30 September '09

Minor Planet Electronic Circulars

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


MPEC 2009-S155 - "18:55 UT" - Observations of Comets


MPEC 2009-S154 - "18:36 UT" - Comet P/2009 S2 (McNaught)


MPEC 2009-S153 - "17:05 UT" - Comet P/2009 S1 (Gibbs)


MPEC 2009-S152 - "16:57 UT" - Comet C/2009 R1 (McNaught)


MPEC 2009-S151 - "16:53 UT" - Comet P/2009 QG31


MPEC 2009-S150 - "16:49 UT" - Comet P/2009 Q5 (McNaught)


MPEC 2009-S149 - "16:44 UT" - Comet P/2009 Q4 (Boattini)


MPEC 2009-S148 - "16:33 UT" - Comet P/2009 Q1 (Hill)


MPEC 2009-S147 - "16:27 UT" - Comet C/2009 P1 (Garradd)


MPEC 2009-S146 - "16:21 UT" - Comet C/2009 O4 (Hill)


MPEC 2009-S145 - "16:15 UT" - Comet P/2009 O3 (Hill)


MPEC 2009-S144 - "13:15 UT" - 2009 SD229


MPEC 2009-S143 - "13:08 UT" - 2009 SC229


<< DOU on 30 Sept. '09 >>  MPEC 2009-S142 - "06:12 UT" - Daily Orbit Update

Observers  on 30 September '09

A total of 80 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 5 in MPECs 2009-S145, 2009-S149, 2009-S150, 2009-S153 & 2009-S155 -- P/2009 S1, P/2009 R2, P/2009 Q5, P/2009 Q4, P/2009 O3
J24Altamira Obs. in Spain, 5 in MPECs 2009-S152 & 2009-S155 -- C/2009 R1, C/2008 N1, C/2006 W3, C/2006 Q1, 29P
B37Ametlla del Valles Obs. in Spain, 3 in MPEC 2009-S155 -- P/2008 O2, C/2007 U1, 167P
A50Andrushivka Obs. in the Ukraine, 2 in MPEC 2009-S142 -- 2009 QG34, 30825
J20Aravaca Obs. in Spain, 2 in MPEC 2009-S155 -- C/2008 P1, C/2006 W3
I37Astrodomi Obs. in Argentina, 1 in MPEC 2009-S142 -- 212546
J51Atlante Obs. in the Canary Islands, 5 in MPECs 2009-S142 & 2009-S155 -- C/2006 W3, 2000 CO101, 217796, 157P, 118P
B87Banyoles Obs. in Spain, 2 in MPEC 2009-S155 -- C/2008 P1, 157P
300Bisei Spaceguard Center in Japan, 1 in MPEC 2009-S150 -- P/2009 Q5
B96Brixiis Obs. in Belgium, 1 in MPEC 2009-S155 -- C/2006 W3
215Buchloe Obs. in Germany, 4 in MPECs 2009-S146 & 2009-S155 -- C/2009 O4, 68P, 54P, 22P
160Castelmartini Obs. in Italy, 25 in MPECs 2009-S142 & 2009-S155 -- 2009 SM103, 2009 SG, 2009 QZ34, 2009 NA, 2009 ML1, 2009 MC9, 2009 KC3, C/2008 P1, 2002 NP1, 2000 CO101, 1998 SV4, 54401, 22771, 218863, 17511, 17274, 16834, 154244, 143487, 138883, 136617, 6455, 3200, 127P, 43P
703Catalina Sky Survey in Arizona, 1 in MPEC 2009-S155 -- C/2009 K2
A77Chante-Perdrix Obs. in France, 15 in MPECs 2009-S146, 2009-S148, 2009-S150, 2009-S152, 2009-S153 & 2009-S155 -- P/2009 S1, P/2009 R2, C/2009 R1, P/2009 Q5, P/2009 Q1, C/2009 P2, C/2009 O4, C/2008 S3, C/2007 U1, C/2007 N3, 222P, 217P, 157P, 68P, 29P
970Chelmsford Obs. in England, 4 in MPEC 2009-S155 -- C/2008 P1, C/2006 S3, 157P, 43P
850Cordell-Lorenz Obs. in Tennessee, 5 in MPECs 2009-S143, 2009-S145, 2009-S148, 2009-S153 & 2009-S155 -- 2009 SC229, P/2009 S1, P/2009 Q1, C/2009 P2, P/2009 O3
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2009-S142 -- 2009 QZ34
I21El Condor Obs. in Argentina, 1 in MPEC 2009-S152 -- C/2009 R1
151Eschenberg Obs. in Switzerland, 1 in MPEC 2009-S142 -- 2009 KC3
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 1 in MPEC 2009-S144 -- 2009 SD229
E10Faulkes Telescope South in New South Wales, 1 in MPEC 2009-S142 -- 2009 SU171
B83Gieres Obs. in France, 1 in MPEC 2009-S155 -- C/2008 P1
J95Great Shefford Obs. in England, 2 in MPEC 2009-S142 -- 2009 SG18, 2009 SC100
442Gualba Obs. in Spain, 1 in MPEC 2009-S155 -- 29P
355Hadano Obs. in Japan, 3 in MPEC 2009-S155 -- P/2009 L2, C/2008 N1, C/2006 W3
379Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2009-S155 -- C/2006 W3
240Herrenberg Obs. in Germany, 2 in MPEC 2009-S142 -- 55408, 112221
J28Jaen Obs. in Spain, 2 in MPECs 2009-S145 & 2009-S155 -- P/2009 O3, C/2008 P1
585Kiev Comet Station in the Ukraine, 11 in MPECs 2009-S142, 2009-S145, 2009-S146, 2009-S148, 2009-S149, 2009-S150, 2009-S153, 2009-S154 & 2009-S155 -- 2009 SW17, 2009 SM103, P/2009 S2, P/2009 S1, P/2009 Q5, P/2009 Q4, P/2009 Q1, C/2009 O4, P/2009 O3, 2009 MC9, C/2008 P1
400Kitami Obs. in Japan, 4 in MPECs 2009-S146 & 2009-S155 -- C/2009 O4, C/2008 P1, C/2006 S3, 157P
352Konan Obs. in Japan, 1 in MPEC 2009-S155 -- C/2006 W3
D95Kurihara Obs., 3 in MPEC 2009-S155 -- C/2006 W3, 88P, 22P
704LINEAR in New Mexico, 19 in MPECs 2009-S142, 2009-S143 & 2009-S155 -- 2009 ST19, 2009 SC229, 2009 KN4, C/2009 K2, C/2008 S3, C/2008 P1, C/2007 U1, C/2007 N3, C/2006 Q1, 2005 EO1, 218017, 16834, 136617, 203P, 157P, 137P, 118P, 47P, 30P
J38La Vara Obs. in Spain, 8 in MPECs 2009-S146 & 2009-S155 -- C/2009 O4, C/2008 P1, C/2008 N1, C/2006 W3, C/2006 Q1, 157P, 127P, 22P
B33Libbiano Obs. in Italy, 7 in MPECs 2009-S142, 2009-S145, 2009-S151 & 2009-S155 -- 2009 SO98, P/2009 QG31, P/2009 O3, C/2008 S3, 47P, 30P, 22P
J59Linceo Obs. in Spain, 3 in MPECs 2009-S146 & 2009-S155 -- C/2009 O4, C/2006 W3, 22P
I36Los Campitos Obs. in Argentina, 1 in MPEC 2009-S152 -- C/2009 R1
130Lumezzane Obs. in Italy, 1 in MPEC 2009-S148 -- P/2009 Q1
B82Maidbronn Obs. in Germany, 9 in MPEC 2009-S155 -- C/2009 K2, C/2008 P1, P/2008 O2, C/2008 N1, C/2006 Q1, C/2005 L3, 157P, 127P, 43P
232Masquefa Obs. in Spain, 5 in MPEC 2009-S155 -- C/2008 P1, C/2007 N3, C/2006 W3, 118P, 22P
213Montcabre Obs. in Spain, 4 in MPECs 2009-S153 & 2009-S155 -- P/2009 S1, 217P, 29P, 22P
945Monte Deva Obs. in Spain, 3 in MPEC 2009-S155 -- C/2008 P1, C/2006 W3, 127P
900Moriyama Obs. in Japan, 5 in MPECs 2009-S145, 2009-S146, 2009-S150 & 2009-S155 -- P/2009 Q5, C/2009 O4, P/2009 O3, C/2006 W3, C/2006 S3
G96Mt. Lemmon Survey (MLS) in Arizona, 4 in MPECs 2009-S142, 2009-S144 & 2009-S154 -- 2009 SN98, 2009 SL104, 2009 SD229, P/2009 S2
J93Mt. Tuffley Obs. in England, 2 in MPEC 2009-S155 -- C/2006 W3, 22P
D81Nagano Obs. in Japan, 2 in MPEC 2009-S155 -- C/2007 N3, 29P
J47Nazaret Obs. in Spain, 3 in MPEC 2009-S155 -- C/2008 P1, C/2006 W3, 157P
423North Ryde Obs. in New South Wales, 2 in MPECs 2009-S147 & 2009-S150 -- P/2009 Q5, C/2009 P1
583Odessa-Mayaki Obs., 2 in MPEC 2009-S155 -- C/2006 W3, 217P
A32Panker Obs. in Germany, 11 in MPECs 2009-S148 & 2009-S155 -- P/2009 Q1, P/2009 L2, P/2008 O2, C/2008 N1, C/2008 A1, C/2006 W3, 157P, 127P, 47P, 43P, 22P
B49Paus Obs. in Spain, 2 in MPEC 2009-S155 -- C/2008 P1, 217P
A53Peschiera del Garda Obs. in Italy, 4 in MPEC 2009-S142 -- 2009 SG2, 2009 SG, 2009 MC9, 2000 CO101
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 3 in MPEC 2009-S155 -- C/2008 P1, C/2006 W3, 22P
B58Polaris Obs. in Hungary, 2 in MPEC 2009-S155 -- C/2006 W3, 22P
H06RAS Obs. Mayhill in New Mexico, 12 in MPECs 2009-S149, 2009-S153, 2009-S154 & 2009-S155 -- P/2009 S2, P/2009 S1, P/2009 R2, P/2009 Q4, C/2009 K2, C/2009 F6, C/2008 P1, C/2008 N1, C/2006 Q1, 222P, 217P, 127P
H066Andrew Lowe in Alberta via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-S142 -- 159402
H06}program code "}" (33) via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-S142 -- 159402
D90RAS Obs. Moorook in South Australia, 2 in MPECs 2009-S153 & 2009-S155 -- P/2009 S1, C/2009 F6
473Remanzacco Obs. in Italy, 4 in MPECs 2009-S143, 2009-S146 & 2009-S155 -- 2009 SC229, C/2009 O4, C/2006 W3, 22P
939Rodeno Obs. in Spain, 6 in MPEC 2009-S155 -- C/2008 P1, C/2008 N1, C/2006 W3, C/2006 Q1, 127P, 22P
461SZTE Asteroid Program in Hungary, 1 in MPEC 2009-S155 -- P/2009 L2
H36Sandlot Obs. in Kansas, 2 in MPECs 2009-S143 & 2009-S144 -- 2009 SD229, 2009 SC229
B70Sant Celoni Obs. in Spain, 1 in MPEC 2009-S155 -- 127P
B74Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2009-S142 -- 2009 ST19
204Schiaparelli Obs. in Italy, 18 in MPECs 2009-S142, 2009-S143, 2009-S149, 2009-S150, 2009-S152, 2009-S154 & 2009-S155 -- 2009 SU104, 2009 SN103, 2009 SH2, 2009 SG2, 2009 SC229, 2009 SC100, P/2009 S2, C/2009 R1, P/2009 Q5, P/2009 Q4, C/2009 K2, C/2008 A1, C/2006 W3, C/2006 Q1, C/2005 L3, 167P, 127P, 68P
E12Siding Spring Survey (SSS) in New South Wales, 5 in MPEC 2009-S142 -- 2009 SU104, 2009 SG2, 2009 NH, 2009 HD21, 2062
510Siegen Obs. in Germany, 3 in MPEC 2009-S155 -- C/2008 N1, C/2006 W3, C/2006 S3
071Smolyan Obs. in Bulgaria, 2 in MPEC 2009-S155 -- 217P, 22P
587Sormano Obs. in Italy, 3 in MPEC 2009-S142 -- 2009 SU104, 2009 SP171, 2009 SH2
691Spacewatch 0.9m telescope in Arizona, 17 in MPECs 2009-S142 & 2009-S155 -- 2009 SK, 2009 SB100, C/2007 N3, 2003 TK, 2002 VV17, 2002 TE66, 1998 QQ63, 96536, 171486, 163364, 162998, 144922, 143487, 140158, 138815, 8176, 127P
291Spacewatch 1.8m telescope in Arizona, 10 in MPECs 2009-S142 & 2009-S155 -- 2009 SW19, 2009 ST, 2009 SQ104, 2009 SM98, 2009 SH2, 2009 SG18, 2009 FG19, 2004 LJ, 137P, 54P
B01Taunus Obs. in Germany, 1 in MPEC 2009-S145 -- P/2009 O3
926Tenagra II Obs. in Arizona, 5 in MPECs 2009-S142, 2009-S143 & 2009-S144 -- 2009 SU104, 2009 SN103, 2009 SH2, 2009 SD229, 2009 SC229
B26Terres Blanches Obs. in France, 4 in MPEC 2009-S155 -- C/2008 P1, C/2006 W3, C/2006 S3, 22P
B18Terskol Obs. in Russia, 7 in MPECs 2009-S145, 2009-S146 & 2009-S155 -- C/2009 O4, P/2009 O3, C/2008 P1, C/2006 W3, C/2006 S3, 217P, 22P
H10Tzec Maun Obs. Mayhill in New Mexico, 5 in MPECs 2009-S143, 2009-S150, 2009-S151 & 2009-S155 -- 2009 SC229, P/2009 QG31, P/2009 Q5, C/2007 N3, 217P
D25Tzec Maun Obs. Pingelly in Western Australia, 2 in MPEC 2009-S155 -- C/2006 W3, 22P
A92Urseanu Obs. in Romania, 1 in MPEC 2009-S142 -- 152664
B51Vallauris Obs. in France, 1 in MPEC 2009-S142 -- 2009 QB36
A48Verona Obs. in Italy, 2 in MPEC 2009-S142 -- 2009 SM103, 2009 MC9
H47Vicksburg Obs. in Mississippi, 4 in MPECs 2009-S150 & 2009-S155 -- P/2009 Q5, C/2007 N3, 217P, 118P
B42Vitebsk Obs. in Belarus, 1 in MPEC 2009-S155 -- 68P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 30 September '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 SD229JPL Sentry17032012-21081921.9e-07-2.97-3.580JPL: "Analysis based on 23 observations spanning 1.0325 days (2009-Sep-29.43433 to 2009-Sep-30.46683)." Diameter approximately 0.608 km. from mean, weighted H=18.7.
2009 SC229JPL Sentry17032013-2106515.0e-08-4.08-4.590JPL: "Analysis based on 21 observations spanning 1.0714 days (2009-Sep-29.34888 to 2009-Sep-30.42031)." Diameter approximately 0.619 km. from mean, weighted H=18.7.
2009 SP171JPL Sentry13352029-2109901.5e-07-3.83-4.660JPL: "Analysis based on 23 observations spanning 1.0904 days (2009-Sep-28.20541 to 2009-Sep-29.29576)." Diameter approximately 0.513 km. from mean, weighted H=19.1.
NEODyS13352013-2087742.47e-07-2.97-3.170NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2009/09/28.206 to 2009/09/29.297."
2009 SQ104JPL Sentry1335R E M O V E DJPL: Risk listing removed at 0930 UTC.
NEODyS1335R E M O V E D-
2009 SM98JPL Sentry1335205513.2e-09-7.01-7.010JPL: "Analysis based on 34 observations spanning 5.9840 days (2009-Sep-24.24446 to 2009-Sep-30.22851)." Diameter approximately 0.120 km. from mean, weighted H=22.3.
NEODyS1335205512.07e-09-7.18-7.180NEODyS: "Based on 34 optical observations (of which 0 are rejected as outliers) from 2009/09/24.245 to 2009/09/30.229."
2009 SW19JPL Sentry1335R E M O V E DJPL: Risk listing removed at 0853 UTC.
2009 SG18JPL Sentry1335204421.4e-09-4.71-4.930JPL: "Analysis based on 45 observations spanning 8.9438 days (2009-Sep-21.17145 to 2009-Sep-30.11526)." Diameter approximately 0.920 km. from mean, weighted H=17.8.
NEODyS13352037-204439.94e-10-4.85-5.050NEODyS: "Based on 45 optical observations (of which 0 are rejected as outliers) from 2009/09/21.172 to 2009/09/30.116."
2009 SH2JPL Sentry1335R E M O V E DJPL: Risk listing removed at 0855 UTC.

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 30 September '09

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

2002Grabbed MPEC 2009-S153 - Comet P/2009 S1 (Gibbs) - see above
Grabbed MPEC 2009-S154 - Comet P/2009 S2 (McNaught) - see above
Grabbed MPEC 2009-S155 - Observations of Comets - see above
1703Noted that JPL Sentry has posted 2009 SC229 as an impact risk - see above
Noted that JPL Sentry has posted 2009 SD229 as an impact risk - see above
Grabbed MPEC 2009-S145 - Comet P/2009 O3 (Hill) - see above
Grabbed MPEC 2009-S146 - Comet C/2009 O4 (Hill) - see above
Grabbed MPEC 2009-S147 - Comet C/2009 P1 (Garradd) - see above
Grabbed MPEC 2009-S148 - Comet P/2009 Q1 (Hill) - see above
Grabbed MPEC 2009-S149 - Comet P/2009 Q4 (Boattini) - see above
Grabbed MPEC 2009-S150 - Comet P/2009 Q5 (McNaught) - see above
Grabbed MPEC 2009-S151 - Comet P/2009 QG31 - see above
Grabbed MPEC 2009-S152 - Comet C/2009 R1 (McNaught) - see above
1335Noted that JPL Sentry has updated its 2009 SG18 risk assessment - see above
Noted that NEODyS has updated its 2009 SG18 risk assessment - see above
Noted that JPL Sentry has removed 2009 SH2 as an impact risk - see above
Noted that JPL Sentry has updated its 2009 SM98 risk assessment - see above
Noted that NEODyS has updated its 2009 SM98 risk assessment - see above
Noted that JPL Sentry has updated its 2009 SP171 risk assessment - see above
Noted that NEODyS has posted 2009 SP171 as an impact risk - see above
Noted that JPL Sentry has removed 2009 SQ104 as an impact risk - see above
Noted that NEODyS has removed 2009 SQ104 as an impact risk - see above
Noted that JPL Sentry has removed 2009 SW19 as an impact risk - see above
Grabbed MPEC 2009-S142 - Daily Orbit Update - see above
Grabbed MPEC 2009-S143 - 2009 SC229 - see above
Grabbed MPEC 2009-S144 - 2009 SD229 - see above