Contents  on 11 February '08

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 11 February '08

The MPC's NEO Confirmation Page has 19 listings: 6 new, 13 updated

When last checked at 2338 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had six new and thirteen updated listings. Of these, nine were "one nighters." So far The Tracking News has counted a total of 44 objects listed on the NEOCP at some point today.

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

New MPECs  on 11 February '08

Minor Planet Electronic Circulars

As of last check at 2354 UTC, there have been fifteen MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2008-C74 - "16:55 UT" - 2008 CD71


MPEC 2008-C73 - "16:45 UT" - 2008 CC71


<< DOU on 11 Feb. '08 >>  MPEC 2008-C72 - "07:08 UT" - Daily Orbit Update


MPEC 2008-C71 - "04:49 UT" - 2008 CN70


MPEC 2008-C70 - "04:43 UT" - 2008 CL70


MPEC 2008-C69 - "04:41 UT" - 2008 CK70


MPEC 2008-C68 - "04:37 UT" - 2008 CJ70


MPEC 2008-C67 - "04:35 UT" - 2008 CH70


MPEC 2008-C66 - "04:32 UT" - 2008 CE70


MPEC 2008-C65 - "03:34 UT" - 2008 CD70


MPEC 2008-C64 - "00:59 UT" - Observations of Comets


MPEC 2008-C63 - "00:38 UT" - Comet C/2008 C1 (Chen-Gao)


MPEC 2008-C62 - "00:33 UT" - Comet P/2008 A2 (LINEAR)


MPEC 2008-C61 - "00:30 UT" - Comet C/2008 A1 (McNaught)


MPEC 2008-C60 - "00:27 UT" - Comet C/2007 Y1 (LINEAR)

Observers  on 11 February '08

A total of 86 observing facilities appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 3 in MPEC 2008-C64 -- C/2007 T1, C/2006 S5, C/2006 Q1
349Ageo Obs. in Japan, 10 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, C/2007 W1, P/2007 VQ11, P/2007 T6, P/2007 C2, C/2007 B2, C/2002 VQ94, 143P, 128P, 65P
B37Ametlla del Valles Obs. in Spain, 6 in MPEC 2008-C64 -- C/2007 T5, 172P, 110P, 74P, 65P, 50P
A50Andrushivka Obs. in the Ukraine, 1 in MPEC 2008-C72 -- 2008 BT18
H55Astronomical Research Obs. (ARO) in Illinois, 2 in MPEC 2008-C72 -- 2008 CE6, 2007 XA23
467Auckland Obs. in New Zealand, 12 in MPECs 2008-C61 & 2008-C64 -- C/2008 A1, C/2007 W1, C/2007 T1, P/2007 H1, C/2006 U6, C/2006 S5, C/2006 Q1, C/2006 K4, 110P, 46P, 29P, 8P
A81Balzaretto Obs. in Italy, 6 in MPECs 2008-C64 & 2008-C72 -- 2008 AF4, C/2007 W1, 68359, 110P, 93P, 46P
B48Bocholt Obs. in Germany, 4 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, 180P, 173P, 124P
215Buchloe Obs. in Germany, 11 in MPECs 2008-C63 & 2008-C64 -- P/2008 C2, C/2008 C1, C/2007 VO53, C/2006 M1, 195P, 179P, 156P, 148P, 143P, 116P, 77P
235CAST Obs. in Italy, 13 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, C/2007 T5, C/2006 W3, C/2006 S5, 173P, 110P, 93P, 74P, 65P, 50P, 46P, 29P, 17P
670Camarillo Obs. in southern California, 1 in MPEC 2008-C65 -- 2008 CD70
J96Cantabria Obs. in Spain, 10 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, C/2007 U1, P/2007 H1, P/2007 C2, 110P, 93P, 50P, 46P, 29P, 17P
B20Carmelita Obs. in Spain, 6 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, C/2006 S5, 124P, 110P, 74P, 29P
B53Casal Lumbroso Obs., 3 in MPEC 2008-C64 -- 110P, 50P, 46P
703Catalina Sky Survey (CSS) in Arizona, 17 in MPECs 2008-C60, 2008-C64, 2008-C65, 2008-C68, 2008-C69 & 2008-C72 -- 2008 CY4, 2008 CN1, 2008 CK70, 2008 CJ70, 2008 CD70, 2008 BP16, 2008 AF4, C/2007 Y1, 2007 TU24, 162567, 1685, 191P, 183P, 172P, 93P, 22P, 10P
A77Chante-Perdrix Obs. in France, 13 in MPECs 2008-C63 & 2008-C64 -- P/2008 C2, C/2008 C1, P/2007 VQ11, P/2007 V1, C/2006 W3, 195P, 190P, 179P, 128P, 74P, 46P, 29P, 17P
B11Cima Rest Obs. in Italy, 3 in MPEC 2008-C72 -- 2007 YV29, 2007 SV2, 2004 KD1
B50Corner Obs. in Germany, 1 in MPEC 2008-C63 -- C/2008 C1
106Crni Vrh Obs. in Slovenia, 3 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, 172P, 124P
448Desert Moon Obs. in New Mexico, 4 in MPECs 2008-C68, 2008-C71 & 2008-C72 -- 2008 CR1, 2008 CN70, 2008 CJ70, 2008 BQ16
113Drebach Obs. in Germany, 4 in MPECs 2008-C65, 2008-C68, 2008-C69 & 2008-C71 -- 2008 CN70, 2008 CK70, 2008 CJ70, 2008 CD70
151Eschenberg Obs. in Switzerland, 5 in MPECs 2008-C60, 2008-C65, 2008-C69 & 2008-C72 -- 2008 CK70, 2008 CD70, 2008 BD15, C/2007 Y1, 2004 DC
595Farra d'Isonzo Obs. in Italy, 3 in MPECs 2008-C63, 2008-C65 & 2008-C71 -- 2008 CN70, 2008 CD70, C/2008 C1
372Geisei Obs. in Japan, 3 in MPECs 2008-C61, 2008-C63 & 2008-C64 -- C/2008 C1, C/2008 A1, 70P
143Gnosca Obs. in Switzerland, 1 in MPEC 2008-C65 -- 2008 CD70
651Grasslands Obs. in Arizona, 4 in MPECs 2008-C65, 2008-C67, 2008-C68 & 2008-C70 -- 2008 CL70, 2008 CJ70, 2008 CH70, 2008 CD70
J95Great Shefford Obs. in England, 9 in MPECs 2008-C65, 2008-C66, 2008-C67, 2008-C68, 2008-C69, 2008-C70, 2008-C72, 2008-C73 & 2008-C74 -- 2008 CL70, 2008 CK70, 2008 CJ70, 2008 CH70, 2008 CF22, 2008 CE70, 2008 CD71, 2008 CD70, 2008 CC71
A17Guidestar Obs. in Germany, 1 in MPEC 2008-C68 -- 2008 CJ70
379Hamamatsu-Yuto Obs. in Japan, 4 in MPECs 2008-C63, 2008-C64 & 2008-C72 -- C/2008 C1, 2005 TU45, 2005 EK70, 17P
B43Hennef Obs. in Germany, 2 in MPEC 2008-C72 -- 2007 TG8, 68359
D88Hiratsuka Obs., 1 in MPEC 2008-C64 -- C/2005 EL173
750Hobbs Obs. in Wisconsin, 1 in MPEC 2008-C64 -- 46P
048Hradec Kralove Obs. in the Czech Republic, 5 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, C/2006 S5, 110P, 93P, 46P
A21Irmtraut Obs. in Germany, 1 in MPEC 2008-C64 -- 93P
G92Jarnac Obs. in Arizona, 1 in MPEC 2008-C64 -- 156P
246KLENOT in the Czech Republic, 9 in MPECs 2008-C62, 2008-C64, 2008-C65, 2008-C66, 2008-C68, 2008-C69, 2008-C70, 2008-C71 & 2008-C72 -- 2008 CN70, 2008 CL70, 2008 CK70, 2008 CJ70, 2008 CE70, 2008 CD70, P/2008 C2, P/2008 A2, 2005 NB7
415Kambah Obs. in the Australian Capital Territory, 1 in MPEC 2008-C64 -- C/2007 W1
585Kiev Comet Station in the Ukraine, 6 in MPECs 2008-C60, 2008-C62, 2008-C63 & 2008-C64 -- C/2008 C1, P/2008 A2, C/2007 Y1, C/2007 W1, 29P, 17P
704LINEAR in New Mexico, 20 in MPECs 2008-C64, 2008-C65, 2008-C66, 2008-C69, 2008-C70 & 2008-C72 -- 2008 CZ4, 2008 CL70, 2008 CK70, 2008 CE70, 2008 CD70, 2008 CA5, 2008 AU26, 2008 AM33, C/2007 T5, 2007 PU11, C/2006 M1, 2003 CN17, 162038, 138013, 1685, 183P, 172P, 93P, 79P, 65P
699LONEOS in Arizona, 5 in MPEC 2008-C64 -- C/2007 S2, C/2006 S5, 173P, 65P, 46P
J87La Canada Obs. in Spain, 1 in MPEC 2008-C71 -- 2008 CN70
J76La Murta Obs. in Spain, 6 in MPEC 2008-C64 -- 110P, 93P, 50P, 46P, 29P, 17P
J38La Vara Obs. in Spain, 12 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, C/2006 W3, C/2006 S5, 191P, 124P, 117P, 93P, 65P, 50P, 46P, 29P, 17P
A80Lindenberg Obs. in Germany, 2 in MPECs 2008-C65 & 2008-C72 -- 2008 CD70, 2008 CD22
130Lumezzane Obs. in Italy, 13 in MPECs 2008-C63, 2008-C64 & 2008-C72 -- 2008 CP, 2008 CG, C/2008 C1, 2008 BH16, 2008 BD15, 2008 AF4, 2008 AE, 2007 YK, C/2007 W1, 96189, 68063, 154347, 195P
560Madonna di Dossobuono Obs. in Italy, 8 in MPECs 2008-C64 & 2008-C72 -- 2008 AF4, C/2006 S5, 2005 TU45, 2002 AV31, 153591, 173P, 50P, 17P
232Masquefa Obs. in Spain, 10 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, C/2006 W3, 180P, 124P, 110P, 93P, 50P, 46P, 29P, 17P
A06Mataro Obs. in Spain, 2 in MPEC 2008-C64 -- 110P, 29P
118Modra Obs. in Slovakia, 11 in MPECs 2008-C62, 2008-C63 & 2008-C64 -- C/2008 C1, P/2008 A2, P/2007 VQ11, C/2007 U1, P/2007 T6, C/2007 T5, C/2007 S2, P/2007 C2, C/2006 S5, P/2005 SB216, 29P
J46Montana Blanca Obs. in the Canary Islands, 2 in MPECs 2008-C61 & 2008-C64 -- C/2008 A1, 17P
213Montcabre Obs. in Spain, 12 in MPECs 2008-C62, 2008-C63 & 2008-C64 -- C/2008 C1, P/2008 A2, C/2007 W1, P/2007 T6, C/2007 B2, C/2006 S5, 110P, 65P, 46P, 29P, 17P, 7P
945Monte Deva Obs. in Spain, 13 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, C/2007 W1, C/2007 B2, C/2006 W3, C/2006 S5, 180P, 124P, 110P, 93P, 65P, 46P, 29P, 17P
G96Mt. Lemmon Survey (MLS) in Arizona, 20 in MPECs 2008-C64, 2008-C66, 2008-C67, 2008-C68, 2008-C69, 2008-C71, 2008-C72, 2008-C73 & 2008-C74 -- 2008 CN70, 2008 CK70, 2008 CJ70, 2008 CH70, 2008 CE70, 2008 CD71, 2008 CC71, P/2008 C2, 2008 BD15, 2008 AL33, P/2007 VQ11, P/2007 V2, C/2007 S2, P/2007 C2, C/2006 M1, 2003 AJ73, 2002 BG, 175114, 190P, 117P
J93Mt. Tuffley Obs. in England, 1 in MPEC 2008-C64 -- 93P
A13Naef Obs. in Switzerland, 1 in MPEC 2008-C72 -- 172722
224Ottmarsheim Obs. in France, 3 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, 110P, 50P
A32Panker Obs. in Germany, 4 in MPEC 2008-C64 -- C/2006 S5, 124P, 110P, 29P
B49Paus Obs. in Spain, 6 in MPEC 2008-C64 -- C/2007 T5, P/2007 C2, P/2005 SB216, 65P, 29P, 7P
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 2 in MPEC 2008-C64 -- 110P, 29P
J52Pinsoro Obs. in Spain, 4 in MPEC 2008-C64 -- C/2007 W1, C/2007 B2, C/2006 S5, 29P
B58Polaris Obs., 1 in MPEC 2008-C63 -- C/2008 C1
J53Posadas Obs. in Spain, 3 in MPEC 2008-C64 -- C/2006 S5, 124P, 29P
D29Purple Mtn. Obs. XuYi Station in China, 2 in MPEC 2008-C64 -- P/2007 T6, 183P
939Rodeno Obs. in Spain, 6 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, C/2006 S5, 93P, 46P, 29P, 17P
854Sabino Canyon Obs. in Arizona, 1 in MPEC 2008-C71 -- 2008 CN70
B04Saint-Barthelemy Obs. in Italy, 1 in MPEC 2008-C68 -- 2008 CJ70
104San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2008-C63 -- C/2008 C1
233San Vito Obs. in Italy, 3 in MPEC 2008-C64 -- C/2006 S5, 93P, 50P
204Schiaparelli Obs. in Italy, 25 in MPECs 2008-C63 & 2008-C64 -- P/2008 C2, C/2008 C1, C/2007 VO53, P/2007 V2, P/2007 V1, P/2007 T6, C/2007 T5, C/2007 B2, P/2005 SB216, C/2005 EL173, C/2003 WT42, 190P, 180P, 179P, 172P, 148P, 143P, 128P, 116P, 79P, 77P, 65P, 22P, 10P, 7P
E12Siding Spring Survey (SSS) in New South Wales, 3 in MPECs 2008-C71 & 2008-C72 -- 2008 CN70, 2102, 1036
510Siegen Obs. in Germany, 4 in MPECs 2008-C63, 2008-C64 & 2008-C72 -- C/2008 C1, 1685, 1036, 110P
691Spacewatch 0.9m telescope in Arizona, 5 in MPECs 2008-C64, 2008-C72 & 2008-C74 -- 2008 CD71, 2004 YC5, 2003 WC25, 138205, 22P
291Spacewatch 1.8m telescope in Arizona, 6 in MPECs 2008-C71, 2008-C72 & 2008-C74 -- 2008 CN70, 2008 CD71, 2008 CD6, 2008 CB6, 2008 BO16, 2007 UB6
A97Stammersdorf Obs. in Austria, 5 in MPEC 2008-C64 -- C/2006 S5, 110P, 46P, 29P, 17P
147Suno Obs. in Italy, 2 in MPECs 2008-C60 & 2008-C62 -- P/2008 A2, C/2007 Y1
B30Szamotuly-Galowo Obs. in Poland, 1 in MPEC 2008-C64 -- C/2003 WT42
673Table Mtn. Obs. in southern California, 2 in MPECs 2008-C62 & 2008-C63 -- C/2008 C1, P/2008 A2
6735Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2008-C65 & 2008-C73 -- 2008 CD70, 2008 CC71
B26Terres Blanches Obs. in France, 2 in MPEC 2008-C64 -- 29P, 17P
A82Trieste Obs. in Italy, 2 in MPEC 2008-C64 -- C/2006 S5, 110P
0125Peter De Cat via Uccle Obs. in Belgium, 1 in MPEC 2008-C72 -- 9172
A92Urseanu Obs. in Romania, 1 in MPEC 2008-C64 -- 29P
J70Vega del Thader Obs. in Spain, 1 in MPEC 2008-C63 -- C/2008 C1
A48Verona Obs. in Italy, 4 in MPEC 2008-C72 -- 2008 CL20, 2008 CD22, 2008 BD15, 2005 TU45
H47Vicksburg Obs. in Mississippi, 7 in MPEC 2008-C64 -- C/2006 S5, 191P, 173P, 110P, 93P, 74P, 29P
B42Vitebsk Obs. in Belarus, 6 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, P/2007 T6, C/2007 B2, C/2006 S5, 124P, 29P
C42Xingming Obs. in China, 3 in MPECs 2008-C63 & 2008-C64 -- C/2008 C1, 110P, 29P

Impact Risk Monitoring  on 11 February '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2355 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of objects under current observation.
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090.
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
2008 CC71JPL Sentry20002033-2093668.3e-05-4.01-4.480JPL: "Analysis based on 15 observations spanning 2.0543 days (2008-Feb-09.39625 to 2008-Feb-11.45056)." Diameter approximately 0.038 km. from mean, weighted H=24.7.
2008 CK70JPL Sentry15352015-203021.7e-04-3.36-3.380JPL: "Analysis based on 32 observations spanning 1.7923 days (2008-Feb-09.34106 to 2008-Feb-11.13335)." Diameter approximately 0.032 km. from mean, weighted H=25.1.
NEODyS15352015-203581.63e-04-3.36-3.400NEODyS: "Based on 32 optical observations (of which 0 are rejected as outliers) from 2008/02/09.342 to 2008/02/11.134."
2008 CF22NEODyS1535204716.73e-09-8.54-8.540NEODyS: "Based on 61 optical observations (of which 1 are rejected as outliers) from 2008/02/09.064 to 2008/02/10.217."
2008 CE6JPL Sentry1534R E M O V E DJPL: Risk listing removed at 1025 UTC.
2008 CD6JPL Sentry1534R E M O V E DJPL: Risk listing removed at 1048 UTC.
NEODyS1534R E M O V E D
2008 CB6JPL Sentry15352093-210741.8e-05-6.12-6.220JPL: "Analysis based on 26 observations spanning 3.9196 days (2008-Feb-07.29202 to 2008-Feb-11.21164)." Diameter approximately 0.014 km. from mean, weighted H=27.0.
NEODyS1535207415.29e-09-9.47-9.470NEODyS: "Based on 26 optical observations (of which 0 are rejected as outliers) from 2008/02/07.293 to 2008/02/11.212."
2008 BO16JPL Sentry1535204511.2e-06-4.40-4.400JPL: "Analysis based on 48 observations spanning 11.816 days (2008-Jan-30.38083 to 2008-Feb-11.19721)." Diameter approximately 0.089 km. from mean, weighted H=22.9.
NEODyS1535204511.59e-06-4.27-4.270NEODyS: "Based on 49 optical observations (of which 3 are rejected as outliers) from 2008/01/30.382 to 2008/02/11.198."
2008 AF4JPL Sentry15352078-2101262.3e-05-2.34-2.730JPL: "Analysis based on 455 observations spanning 30.879 days (2008-Jan-10.39652 to 2008-Feb-10.27536)." Diameter approximately 0.390 km. from mean, weighted H=19.7.
NEODyS15352078-2090201.14e-05-2.62-2.740NEODyS: "Based on 459 optical observations (of which 4 are rejected as outliers) from 2008/01/10.397 to 2008/02/10.276."

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 11 February '08

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

2000Noted that JPL Sentry has posted 2008 CC71 as an impact risk - see above
1706Grabbed MPEC 2008-C73 - 2008 CC71 - see above
Grabbed MPEC 2008-C74 - 2008 CD71 - see above
1535Noted that NEODyS has updated its 2008 AF4 risk assessment - see above
Noted that NEODyS has updated its 2008 BO16 risk assessment - see above
Noted that NEODyS has updated its 2008 CB6 risk assessment - see above
Noted that NEODyS has updated its 2008 CF22 risk assessment - see above
Grabbed MPEC 2008-C72 - Daily Orbit Update - see above
1534Noted that JPL Sentry has updated its 2008 AF4 risk assessment - see above
Noted that JPL Sentry has updated its 2008 BO16 risk assessment - see above
Noted that JPL Sentry has updated its 2008 CB6 risk assessment - see above
Noted that JPL Sentry has removed 2008 CD6 as an impact risk - see above
Noted that NEODyS has removed 2008 CD6 as an impact risk - see above
Noted that JPL Sentry has removed 2008 CE6 as an impact risk - see above
Noted that JPL Sentry has posted 2008 CK70 as an impact risk - see above
Noted that NEODyS has posted 2008 CK70 as an impact risk - see above
0527Grabbed MPEC 2008-C65 - 2008 CD70 - see above
Grabbed MPEC 2008-C66 - 2008 CE70 - see above
Grabbed MPEC 2008-C67 - 2008 CH70 - see above
Grabbed MPEC 2008-C68 - 2008 CJ70 - see above
Grabbed MPEC 2008-C69 - 2008 CK70 - see above
Grabbed MPEC 2008-C70 - 2008 CL70 - see above
Grabbed MPEC 2008-C71 - 2008 CN70 - see above
0138Grabbed MPEC 2008-C64 - Observations of Comets - see above
0059Grabbed MPEC 2008-C60 - Comet C/2007 Y1 (LINEAR) - see above
Grabbed MPEC 2008-C61 - Comet C/2008 A1 (McNaught) - see above
Grabbed MPEC 2008-C62 - Comet P/2008 A2 (LINEAR) - see above
Grabbed MPEC 2008-C63 - Comet C/2008 C1 (Chen-Gao) - see above