Contents  on 14 January '10

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.

Radar Astrometry  on 14 January '10

Radar observation of one object

The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:


Data update noted at 0527 UTC when the database was dated 13 Jan.

NEOCP Activity  on 14 January '10

The MPC's NEO Confirmation Page has 2 listings: 2 new

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new listings. Both of these were "one nighters." So far The Tracking News has counted a total of seventeen listings on the NEOCP at some point today.

New MPECs  on 14 January '10

Minor Planet Electronic Circulars

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


MPEC 2010-A76 - "17:33 UT" - Comet C/2010 A4 (Siding Spring)


MPEC 2010-A75 - "15:39 UT" - 2007 HB


<< DOU on 14 Jan. '10 >>  MPEC 2010-A74 - "07:10 UT" - Daily Orbit Update


MPEC 2010-A73 - "00:20 UT" - Observations of Comets


MPEC 2010-A72 - "00:08 UT" - Comet P/2009 Y2 (Kowalski)


MPEC 2010-A71 - "00:02 UT" - Comet C/2009 Y1 (Catalina)

Observers  on 14 January '10

A total of 61 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 15 in MPECs 2010-A72 & 2010-A73 -- P/2009 Y2, C/2009 T3, P/2009 T2, C/2008 Q3, C/2007 VO53, C/2007 N3, C/2006 OF2, 203P, 127P, 118P, 94P, 88P, 81P, 30P, 22P
J10Alicante Obs. in Spain, 1 in MPEC 2010-A73 -- 118P
H21Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 18 in MPECs 2010-A74 & 2010-A76 -- 2010 AO2, 2010 AL30, 2010 AJ30, 2010 AF30, 2010 AE30, 2010 AE, 2010 AD3, 2010 AB3, C/2010 A4, 2009 XR2, 2009 XP2, 2009 XO, 2009 XC2, 2009 WL1, 2009 WA105, 2009 UV18, 2009 SL104, 2002 SV
J51Atlante Obs. in the Canary Islands, 9 in MPECs 2010-A73 & 2010-A74 -- 2010 AL30, P/2009 Q4, C/2007 Q3, 232P, 217P, 118P, 94P, 81P, 30P
I32Beta Orionis Obs. in Argentina, 1 in MPEC 2010-A73 -- 169P
B59Borken Obs. in Germany, 1 in MPEC 2010-A73 -- C/2007 N3
215Buchloe Obs. in Germany, 1 in MPEC 2010-A73 -- 88P
160Castelmartini Obs. in Italy, 1 in MPEC 2010-A73 -- C/2009 T3
703Catalina Sky Survey (CSS) in Arizona, 6 in MPECs 2010-A73 & 2010-A74 -- 2001 BP61, 1994 CB, 86326, 3200, 232P, 203P
A77Chante-Perdrix Obs. in France, 12 in MPECs 2010-A72 & 2010-A73 -- P/2009 Y2, C/2009 U3, C/2006 S3, 232P, 203P, 157P, 127P, 88P, 47P, 43P, 29P, 22P
J01Cielo Profundo Obs. in Spain, 2 in MPEC 2010-A73 -- 81P, 30P
448Desert Moon Obs. in New Mexico, 5 in MPEC 2010-A74 -- 2010 AJ30, 2009 WF104, 2009 CQ5, 9950, 3552
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 2 in MPEC 2010-A74 -- 2010 AJ30, 2010 AE
372Geisei Obs. in Japan, 5 in MPECs 2010-A71, 2010-A72 & 2010-A73 -- P/2009 Y2, C/2009 Y1, C/2009 U3, C/2007 N3, 64P
190Gissar Obs. in Tajikistan, 1 in MPEC 2010-A74 -- 2010 AL30
252Goldstone DSS-13 34m antenna in southern California, 1 in radar -- 2010 AL30
253Goldstone DSS-14 70m antenna in southern California, 1 in radar -- 2010 AL30
683Goodricke-Pigott Obs. in Arizona, 1 in MPEC 2010-A73 -- 118P
442Gualba Obs. in Spain, 3 in MPEC 2010-A73 -- 157P, 81P, 29P
379Hamamatsu-Yuto Obs. in Japan, 4 in MPECs 2010-A73 & 2010-A74 -- 2007 MK13, 2005 MC, 217P, 30P
415Kambah Obs. in the Australian Capital Territory, 2 in MPEC 2010-A73 -- C/2009 T1, 169P
682Kanab Obs. in Utah, 2 in MPECs 2010-A74 & 2010-A76 -- 2010 AF40, C/2010 A4
168Kourovskaya Obs. in Russia, 3 in MPEC 2010-A74 -- 7358, 4015, 3554
D95Kurihara Obs. in Japan, 8 in MPEC 2010-A73 -- P/2009 Q4, C/2008 Q3, C/2007 Q3, 217P, 118P, 81P, 30P, 29P
704LINEAR in New Mexico, 20 in MPECs 2010-A72, 2010-A73 & 2010-A74 -- 2010 AE, P/2009 Y2, 2009 WO6, P/2009 Q4, C/2008 Q3, C/2007 Q3, C/2007 N3, 2006 XA, 99248, 24761, 162038, 138937, 137052, 10563, 10150, 5626, 137P, 64P, 31P, 29P
J31La Axarquia Obs. in Spain, 2 in MPEC 2010-A73 -- C/2007 Q3, 94P
212La Dehesilla Obs. in Spain, 7 in MPEC 2010-A73 -- C/2009 T3, C/2007 N3, 217P, 203P, 157P, 118P, 30P
J76La Murta Obs. in Spain, 2 in MPEC 2010-A73 -- 118P, 29P
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2010-A76 -- C/2010 A4
B82Maidbronn Obs. in Germany, 3 in MPECs 2010-A73 & 2010-A74 -- 2010 AL30, 232P, 47P
C10Maisoncelles Obs. in France, 6 in MPECs 2010-A72, 2010-A73 & 2010-A74 -- P/2009 Y2, 3200, 217P, 157P, 118P, 30P
J40Malaga Obs. in Spain, 2 in MPEC 2010-A73 -- 118P, 30P
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-A74 -- 2003 UL12
900Moriyama Obs. in Japan, 5 in MPECs 2010-A73 & 2010-A74 -- 2010 AG40, 2010 AE40, 217P, 94P, 29P
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPECs 2010-A73 & 2010-A74 -- 4015, 137P
D81Nagano Obs. in Japan, 1 in MPEC 2010-A73 -- C/2007 Q3
J47Nazaret Obs. in Spain, 9 in MPECs 2010-A73 & 2010-A74 -- 2010 AL30, P/2009 T2, P/2009 Q4, C/2007 Q3, 94P, 88P, 81P, 29P, 22P
423North Ryde Obs. in New South Wales, 3 in MPEC 2010-A73 -- C/2009 T1, C/2009 P1, 169P
D92Osaki Obs. in Japan, 3 in MPEC 2010-A73 -- 217P, 157P, 43P
B49Paus Obs. in Spain, 1 in MPEC 2010-A73 -- 29P
H06RAS Obs. Mayhill in New Mexico, 7 in MPECs 2010-A73 & 2010-A76 -- C/2010 A4, C/2009 U5, C/2008 Q3, C/2007 VO53, C/2007 Q3, 88P, 81P
D90RAS Obs. Moorook in South Australia, 3 in MPECs 2010-A73 & 2010-A76 -- C/2010 A4, C/2009 T1, 169P
473Remanzacco Obs. in Italy, 1 in MPEC 2010-A73 -- C/2009 U3
I20Rio Cuarto Obs. in Argentina, 4 in MPECs 2010-A74 & 2010-A76 -- 2010 AL30, C/2010 A4, 2009 XO, 2009 WE253
939Rodeno Obs. in Spain, 1 in MPEC 2010-A73 -- C/2008 Q3
C09Rouet Obs. in France, 3 in MPEC 2010-A73 -- 217P, 118P, 30P
J07SPAG Monfrague Obs. in Spain, 4 in MPEC 2010-A73 -- 217P, 118P, 30P, 29P
461SZTE Asteroid Program in Hungary, 1 in MPEC 2010-A73 -- C/2006 S3
B74Santa Maria de Montmagastrell Obs. in Spain, 4 in MPEC 2010-A73 -- 157P, 88P, 30P, 22P
D93Sendai Obs. in Japan, 8 in MPEC 2010-A73 -- P/2009 Q4, C/2007 N3, C/2006 OF2, 217P, 94P, 64P, 30P, 29P
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-A76 -- C/2010 A4
B40Skylive Obs. in Italy, 3 in MPEC 2010-A73 -- 217P, 118P, 30P
691Spacewatch 0.9m telescope in Arizona, 5 in MPECs 2010-A73 & 2010-A74 -- C/2009 U5, P/2009 Q4, 2006 SU131, 2002 XA40, 29P
291Spacewatch 1.8m telescope in Arizona, 6 in MPEC 2010-A74 -- 2010 AL, 2010 AJ, 2010 AH3, 2010 AF40, 2010 AE, 2010 AC3
I19Tanti Obs. in Argentina, 1 in MPEC 2010-A76 -- C/2010 A4
926Tenagra II Obs. in Arizona, 2 in MPECs 2010-A75 & 2010-A76 -- C/2010 A4, 2007 HB
H53Thompsonville Obs. in Illinois, 5 in MPEC 2010-A74 -- 218863, 214088, 5626, 3552, 433
H10Tzec Maun Obs. Mayhill in New Mexico, 9 in MPECs 2010-A71, 2010-A73 & 2010-A76 -- C/2010 A4, C/2009 Y1, C/2009 U5, C/2007 Q3, 217P, 137P, 81P, 30P, 29P
H47Vicksburg Obs. in Mississippi, 4 in MPEC 2010-A73 -- 217P, 203P, 118P, 30P
B42Vitebsk Obs. in Belarus, 2 in MPEC 2010-A73 -- C/2007 N3, 31P
G56Walnut Creek Obs. in northern California, 1 in MPEC 2010-A74 -- 2010 AJ30
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 14 January '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2358 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
2010 AF40JPL Sentry1451201416.4e-09-7.03-7.030JPL: "Analysis based on 25 observations spanning 1.8170 days (2010-Jan-12.35742 to 2010-Jan-14.17437)." Diameter approximately 0.034 km. from mean, weighted H=25.0.
NEODyS14512014-207656.89e-09-7.03-7.040NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2010/01/12.358 to 2010/01/14.175."
2009 XOJPL Sentry1451203811.6e-07-4.37-4.370JPL: "Analysis based on 214 observations spanning 35.326 days (2009-Dec-09.152 to 2010-Jan-13.477805)." Diameter approximately 0.270 km. from mean, weighted H=20.5.
NEODyS14512038-208332.74e-07-4.26-4.360NEODyS: "Based on 214 optical observations (of which 0 are rejected as outliers) from 2009/12/09.153 to 2010/01/13.479."

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 14 January '10

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

1803Grabbed MPEC 2010-A76 - Comet C/2010 A4 (Siding Spring) - see above
1645Grabbed MPEC 2010-A75 - 2007 HB - see above
1451Noted that JPL Sentry has updated its 2009 XO risk assessment - see above
Noted that NEODyS has updated its 2009 XO risk assessment - see above
Noted that JPL Sentry has updated its 2010 AF40 risk assessment - see above
Noted that NEODyS has posted 2010 AF40 as an impact risk - see above
Grabbed MPEC 2010-A74 - Daily Orbit Update - see above
0527Noted Radar Astrometry database update - see above
0030Grabbed MPEC 2010-A71 - Comet C/2009 Y1 (Catalina) - see above
Grabbed MPEC 2010-A72 - Comet P/2009 Y2 (Kowalski) - see above
Grabbed MPEC 2010-A73 - Observations of Comets - see above