Contents  on 10 January '11

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 10 January '11

The MPC's NEO Confirmation Page has 3 listings: 3 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of four 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 10 January '11

Minor Planet Electronic Circulars

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


MPEC 2011-A38 - "20:52 UT" - Observations and Orbits of Comets


<< DOU on 10 Jan. '11 >>  MPEC 2011-A37 - "07:11 UT" - Daily Orbit Update


MPEC 2011-A36 - "04:59 UT" - 2011 AM12

Observers  on 10 January '11

A total of 61 observers appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 12 in MPEC 2011-A38 -- P/2010 V1, C/2010 U3, P/2010 U2, C/2010 B1, C/2009 U5, C/2009 P1, C/2009 K5, C/2007 D1, 246P, 162P, 117P, 65P
J24Altamira Obs. in the Canary Islands, 13 in MPECs 2011-A37 & 2011-A38 -- P/2010 W1, P/2010 V3, P/2010 U2, C/2010 B1, C/2009 P1, C/2009 K5, C/2007 G1, 111253, 240P, 223P, 219P, 123P, 103P
H21Astronomical Research Obs. Westfield in Illinois, 23 in MPECs 2011-A36 & 2011-A37 -- 2011 AO4, 2011 AN4, 2011 AM12, 2011 AM1, 2011 AL1, 2011 AH3, 2011 AG3, 2011 AC3, 2011 AB3, 2010 YH, 2010 YC1, 2010 XX58, 2010 XW58, 2010 XL69, 2010 XG11, 2010 XC25, 2010 XB24, 2010 WQ7, 2010 WH3, 2010 UE51, 2010 TY54, 2010 TH19, 2010 SD13
J51Atlante Obs. in the Canary Islands, 2 in MPEC 2011-A38 -- P/2010 V3, C/2010 B1
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2011-A37 -- 2011 AH5
B96Brixiis Obs. in Belgium, 3 in MPEC 2011-A38 -- C/2009 K5, 240P, 123P
215Buchloe Obs. in Germany, 10 in MPEC 2011-A38 -- P/2010 WK, P/2010 W1, P/2010 V3, P/2010 U1, P/2010 R2, C/2010 B1, C/2009 Y1, C/2008 FK75, 240P, 88P
J02Busot Obs. in Spain, 2 in MPEC 2011-A38 -- 240P, 123P
235CAST Obs. in Italy, 5 in MPEC 2011-A38 -- C/2010 B1, C/2009 K5, 240P, 123P, 103P
B20Carmelita Obs. in Spain, 5 in MPEC 2011-A38 -- P/2010 WK, C/2010 B1, 240P, 123P, 103P
B66Casasco Obs. in Italy, 4 in MPEC 2011-A38 -- C/2010 B1, 123P, 103P, 10P
160Castelmartini Obs. in Italy, 14 in MPEC 2011-A38 -- C/2010 X1, P/2010 WK, P/2010 V3, P/2010 U2, C/2010 S1, C/2010 KW7, C/2010 G2, C/2009 K5, C/2007 VO53, C/2007 Q3, 240P, 31P, 29P, 10P
703Catalina Sky Survey (CSS) in Arizona, 6 in MPECs 2011-A37 & 2011-A38 -- P/2010 W1, P/2010 V3, 2008 FT6, 142781, 6569, 241P
958Dax Obs. in France, 13 in MPEC 2011-A38 -- P/2010 WK, P/2010 V3, C/2010 S1, C/2010 B1, C/2009 Y1, C/2009 K5, 240P, 223P, 162P, 123P, 103P, 29P, 10P
H20Eastern Illinois Univ. Obs. in Illinois, 9 in MPEC 2011-A37 -- 2011 AM1, 2011 AL1, 2011 AC3, 2011 AB3, 2010 PR10, 2008 VK14, 2005 WE, 2002 AV31, 2000 QN130
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 4 in MPEC 2011-A38 -- C/2010 X1, P/2010 WK, P/2010 V3, 17P
157Frasso Sabino Obs. in Italy, 5 in MPECs 2011-A37 & 2011-A38 -- 2010 YH, C/2010 X1, 2002 BN, 1997 XS2, 163081
372Geisei Obs. in Japan, 4 in MPEC 2011-A38 -- P/2010 WK, P/2010 V3, P/2010 U2, P/2010 P4
J95Great Shefford Obs. in England, 3 in MPECs 2011-A36 & 2011-A37 -- 2011 AN1, 2011 AM12, 2011 AC3
E16Grove Creek Obs. in New South Wales, 3 in MPEC 2011-A38 -- C/2010 FB87, C/2010 B1, 10P
H16HUT Obs., 6 in MPEC 2011-A38 -- P/2010 WK, P/2010 V3, C/2010 B1, C/2009 K5, 240P, 103P
355Hadano Obs. in Japan, 2 in MPEC 2011-A38 -- C/2010 X1, P/2010 V1
D88Hiratsuka Obs. in Japan, 9 in MPEC 2011-A38 -- P/2010 WK, P/2010 V3, C/2010 S1, C/2010 G2, C/2010 B1, C/2009 K5, C/2008 S3, 240P, 123P
H15ISON-NM Obs. in New Mexico, 2 in MPEC 2011-A38 -- C/2010 X1, C/2010 F3
J28Jaen Obs. in Spain, 1 in MPEC 2011-A38 -- C/2009 K5
046Klet Obs. in the Czech Republic, 1 in MPEC 2011-A38 -- P/2010 WK
D95Kurihara Obs. in Japan, 5 in MPEC 2011-A38 -- P/2010 WK, P/2010 V3, C/2010 B1, C/2009 Y1, C/2009 P1
704LINEAR in New Mexico, 9 in MPECs 2011-A37 & 2011-A38 -- P/2010 W1, C/2010 KW7, 2006 WY2, 2005 GW119, 2002 BN, 86324, 6569, 241P, 88P
J31La Axarquia Obs. in Spain, 2 in MPEC 2011-A38 -- P/2010 WK, 123P
J38La Vara Obs. in Spain, 4 in MPEC 2011-A38 -- C/2010 B1, C/2009 Y1, 240P, 123P
B33Libbiano Obs. in Italy, 1 in MPEC 2011-A38 -- C/2010 B1
H11LightBuckets Obs. Rodeo in New Mexico, 2 in MPEC 2011-A38 -- P/2010 WK, P/2010 V3
844Los Molinos Obs. in Uruguay, 1 in MPEC 2011-A38 -- C/2010 FB87
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2011-A38 -- 9P
B82Maidbronn Obs. in Germany, 4 in MPEC 2011-A38 -- C/2010 S1, C/2009 Y1, C/2009 K5, 123P
C10Maisoncelles Obs. in France, 1 in MPEC 2011-A38 -- C/2010 B1
232Masquefa Obs. in Spain, 1 in MPEC 2011-A38 -- 240P
A06Mataro Obs. in Spain, 1 in MPEC 2011-A38 -- 240P
213Montcabre Obs. in Spain, 7 in MPEC 2011-A38 -- P/2010 WK, P/2010 V3, C/2010 S1, C/2010 KW7, C/2010 B1, 103P, 29P
900Moriyama Obs. in Japan, 15 in MPEC 2011-A38 -- P/2010 V3, P/2010 U2, C/2010 S1, C/2010 G2, C/2010 B1, C/2009 Y1, C/2009 T1, C/2008 S3, 241P, 240P, 223P, 123P, 103P, 43P, 29P
474Mt. John Obs. in New Zealand, 6 in MPECs 2011-A36, 2011-A37 & 2011-A38 -- 2011 AM12, 2011 AG5, 2010 XT45, 2010 XP69, 2010 VW98, C/2010 A4
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPECs 2011-A37 & 2011-A38 -- 68372, 228P
J93Mt. Tuffley Obs. in England, 1 in MPEC 2011-A38 -- C/2010 B1
D81Nagano Obs. in Japan, 1 in MPEC 2011-A38 -- C/2010 G2
J47Nazaret Obs. in Spain, 1 in MPEC 2011-A38 -- 103P
C23Olmen Obs. in Belgium, 1 in MPEC 2011-A38 -- 240P
F51Pan-STARRS 1 (PS1) in Hawaii, 18 in MPEC 2011-A37 -- 2008 CZ118, 2007 FS35, 2007 DB83, 2007 BG49, 2006 VT2, 2006 TN, 2006 SP134, 2006 KZ112, 2005 YY36, 2005 VT5, 2003 HQ32, 2003 FC5, 2000 RS11, 1998 QB28, 1998 FN9, 1996 RG3, 256004, 242216
H06|H. Sato in Japan via RAS Obs. Mayhill in New Mexico, 3 in MPEC 2011-A38 -- C/2010 G2, C/2010 B1, 123P
B56Sant Pere Obs. in Spain, 1 in MPEC 2011-A38 -- C/2010 B1
204Schiaparelli Obs. in Italy, 13 in MPEC 2011-A37 -- 2010 WJ, 2010 VK188, 2010 OC101, 2010 LR68, 2010 LF86, 2006 WY2, 2006 OG15, 2005 CF41, 2004 YZ23, 2003 YO3, 2002 BN, 2000 CR101, 2000 AC6
E12Siding Spring Survey in New South Wales, 1 in MPEC 2011-A36 -- 2011 AM12
G68Sierra Stars Obs. in northern California, 1 in MPEC 2011-A38 -- 103P
C14Sky Vistas Obs. in Austria, 3 in MPEC 2011-A38 -- C/2010 B1, 223P, 123P
J26Spaceguard Centre in Wales, 2 in MPEC 2011-A38 -- C/2010 B1, C/2008 S3
291Spacewatch 1.8m telescope in Arizona, 4 in MPECs 2011-A36 & 2011-A37 -- 2011 AM12, 2010 XC15, 2010 XC11, 1998 HK49
A71Stixendorf Obs. in Austria, 2 in MPEC 2011-A38 -- P/2010 WK, P/2010 V3
C35Terrassa Obs., 1 in MPEC 2011-A38 -- C/2010 B1
H10Tzec Maun Obs. Mayhill in New Mexico, 16 in MPEC 2011-A38 -- C/2010 X1, P/2010 WK, P/2010 V3, P/2010 V1, C/2010 S1, C/2010 G2, C/2010 B1, C/2009 K5, C/2007 VO53, C/2005 L3, 241P, 123P, 103P, 88P, 43P, 29P
D96Tzec Maun Obs. Moorook in South Australia, 5 in MPEC 2011-A38 -- C/2010 FB87, C/2010 B1, 103P, 43P, 29P
H47Vicksburg Obs. in Mississippi, 5 in MPEC 2011-A38 -- C/2010 B1, C/2009 K5, 240P, 123P, 103P
I15Wishing Star Obs. in Rhode Island, 3 in MPEC 2011-A37 -- 2010 XP51, 96590, 154715
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 10 January '11

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. Both also post impact solutions beyond 100 years for a few special 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
2011 AM12JPL Sentry16002023-2108852.1e-07-3.54-4.250JPL: "Analysis based on 24 observations spanning 1.3904 days (2011-Jan-08.60627 to 2011-Jan-09.99663)." Diameter approximately 0.441 km. from mean, weighted H=19.4.
NEODyS16002015-20901653.55e-07-3.13-3.940NEODyS: "Based on 24 optical observations (of which 0 are rejected as outliers) from 2011-01-08.607 to 2011-01-09.997."
2011 AL5NEODyS16002048-208784.16e-10-8.11-8.390NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2011-01-08.336 to 2011-01-09.355."
2011 AH5JPL Sentry16002074-210989.2e-06-5.70-6.090JPL: "Analysis based on 16 observations spanning 1.6450 days (2011-Jan-08.33953 to 2011-Jan-09.98453)." Diameter approximately 0.022 km. from mean, weighted H=26.0.
NEODyS16002066-209067.41e-06-5.78-6.120NEODyS: "Based on 16 optical observations (of which 0 are rejected as outliers) from 2011-01-08.340 to 2011-01-09.985."
2011 AG5JPL Sentry16002020-2074725.0e-05-2.79-3.470JPL: "Analysis based on 28 observations spanning 1.2357 days (2011-Jan-08.2673 to 2011-Jan-09.50295)." Diameter approximately 0.128 km. from mean, weighted H=22.1.
NEODyS16002020-2068544.44e-05-2.85-3.50NEODyS: "Based on 28 optical observations (of which 0 are rejected as outliers) from 2011-01-08.268 to 2011-01-09.504."
2010 XW58JPL Sentry16002065-2106185.0e-06-5.49-6.240JPL: "Analysis based on 41 observations spanning 28.937 days (2010-Dec-11.47391 to 2011-Jan-09.411174)." Diameter approximately 0.039 km. from mean, weighted H=24.7.
NEODyS16002063-208991.12e-06-6.06-6.280NEODyS: "Based on 41 optical observations (of which 0 are rejected as outliers) from 2010-12-11.475 to 2011-01-09.412."
2010 XC25JPL Sentry16002050-205326.0e-06-3.09-3.110JPL: "Analysis based on 87 observations spanning 32.106 days (2010-Dec-08.37716 to 2011-Jan-09.483333)." Diameter approximately 0.230 km. from mean, weighted H=20.8.
NEODyS16002050-206345.97e-06-3.09-3.120NEODyS: "Based on 89 optical observations (of which 2 are rejected as outliers) from 2010-12-08.378 to 2011-01-09.484."
2010 UE51JPL Sentry1600210212.4e-06-7.73-7.730JPL: "Analysis based on 179 observations spanning 72.154 days (2010-Oct-29.25716 to 2011-Jan-09.41067)." Diameter approximately 0.007 km. from mean, weighted H=28.3.

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 10 January '11

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

2121Grabbed MPEC 2011-A38 - Observations and Orbits of Comets - see above
1600Noted that JPL Sentry has reposted 2010 UE51 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 XC25 risk assessment - see above
Noted that NEODyS has updated its 2010 XC25 risk assessment - see above
Noted that JPL Sentry has updated its 2010 XW58 risk assessment - see above
Noted that NEODyS has updated its 2010 XW58 risk assessment - see above
Noted that JPL Sentry has updated its 2011 AG5 risk assessment - see above
Noted that NEODyS has updated its 2011 AG5 risk assessment - see above
Noted that JPL Sentry has updated its 2011 AH5 risk assessment - see above
Noted that NEODyS has updated its 2011 AH5 risk assessment - see above
Noted that NEODyS has posted 2011 AL5 as an impact risk - see above
Noted that JPL Sentry has posted 2011 AM12 as an impact risk - see above
Noted that NEODyS has posted 2011 AM12 as an impact risk - see above
Grabbed MPEC 2011-A37 - Daily Orbit Update - see above
0624Grabbed MPEC 2011-A36 - 2011 AM12 - see above