Contents  on 6 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.

NEOCP Activity  on 6 January '10

The MPC's NEO Confirmation Page has 9 listings: 2 new, 7 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and seven updated listings. Of these, eight were "one nighters." So far The Tracking News has counted a total of twelve 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 6 January '10

Minor Planet Electronic Circulars

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


MPEC 2010-A23 - "22:07 UT" - 2010 AF


MPEC 2010-A22 - "17:54 UT" - 2010 AE


MPEC 2010-A21 - "17:50 UT" - 2008 EB32


MPEC 2010-A20 - "16:01 UT" - Observations of Comets


MPEC 2010-A19 - "15:43 UT" - Comet P/2009 Y2 (Kowalski)


MPEC 2010-A18 - "15:36 UT" - Comet C/2009 Y1 (Catalina)


MPEC 2010-A17 - "15:30 UT" - Comet C/2009 W2 (Boattini)


<< DOU on 6 Jan. '10 >>  MPEC 2010-A16 - "07:09 UT" - Daily Orbit Update

Observers  on 6 January '10

A total of 45 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 13 in MPEC 2010-A20 -- C/2009 U3, C/2009 R1, P/2009 O3, C/2008 P1, C/2007 N3, C/2006 S3, C/2005 L3, 219P, 118P, 81P, 74P, 43P, 29P
J24Altamira Obs. in Spain, 4 in MPEC 2010-A20 -- C/2007 Q3, C/2007 N3, 118P, 81P
H21Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 33 in MPECs 2010-A16, 2010-A22 & 2010-A23 -- 2010 AF, 2010 AE, 2009 YG, 2009 YF, 2009 XV, 2009 XT6, 2009 XR2, 2009 XO, 2009 XF2, 2009 XC2, 2009 XB2, 2009 WW25, 2009 WM139, 2009 WF104, 2009 WF, 2009 WC26, 2009 VO24, 2009 UV18, 2009 SM103, 2009 RN, 2009 MX6, 2007 HZ, 2006 YT13, 2006 WY2, 2006 UR, 2006 KZ37, 2005 MC, 2004 XD50, 2002 YN2, 2002 XN14, 2002 LV, 2001 BE10, 1994 CB
J51Atlante Obs. in the Canary Islands, 3 in MPEC 2010-A20 -- C/2007 Q3, 203P, 81P
B96Brixiis Obs. in Belgium, 1 in MPEC 2010-A20 -- 217P
215Buchloe Obs. in Germany, 10 in MPECs 2010-A17, 2010-A19 & 2010-A20 -- P/2009 Y2, C/2009 W2, P/2009 O3, C/2006 S3, 217P, 118P, 68P, 43P, 30P, 22P
235CAST Obs. in Italy, 3 in MPEC 2010-A20 -- C/2007 N3, 137P, 118P
160Castelmartini Obs. in Italy, 3 in MPEC 2010-A20 -- C/2009 U3, P/2009 T2, C/2007 N3
703Catalina Sky Survey (CSS) in Arizona, 2 in MPECs 2010-A16 & 2010-A23 -- 2010 AF, 2003 YL118
A77Chante-Perdrix Obs. in France, 5 in MPEC 2010-A20 -- P/2009 T2, C/2007 Q3, 217P, 81P, 29P
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2010-A20 -- 203P
151Eschenberg Obs. in Switzerland, 1 in MPEC 2010-A20 -- C/2007 N3
E85Farm Cove Obs. in New Zealand, 1 in MPEC 2010-A20 -- C/2009 F6
372Geisei Obs. in Japan, 9 in MPECs 2010-A17, 2010-A18 & 2010-A20 -- C/2009 Y1, C/2009 W2, C/2007 Q3, C/2006 W3, C/2006 OF2, 232P, 217P, 29P, 22P
683Goodricke-Pigott Obs. in Arizona, 2 in MPEC 2010-A20 -- 217P, 118P
651Grasslands Obs. in Arizona, 2 in MPECs 2010-A16 & 2010-A22 -- 2010 AE, 2003 YL118
J95Great Shefford Obs. in England, 1 in MPEC 2010-A23 -- 2010 AF
415Kambah Obs. in the Australian Capital Territory, 3 in MPEC 2010-A20 -- C/2009 F6, C/2007 M2, C/2007 G1
585Kiev Comet Station in the Ukraine, 3 in MPEC 2010-A20 -- P/2009 Q4, 232P, 203P
D95Kurihara Obs., 2 in MPEC 2010-A20 -- 217P, 118P
704LINEAR in New Mexico, 2 in MPECs 2010-A16 & 2010-A20 -- C/2009 U3, 2002 WP
212La Dehesilla Obs. in Spain, 2 in MPEC 2010-A20 -- P/2009 T2, 203P
J38La Vara Obs. in Spain, 4 in MPEC 2010-A20 -- 217P, 203P, 118P, 30P
844Los Molinos Obs. in Uruguay, 1 in MPEC 2010-A20 -- C/2007 G1
H01Magdalena Ridge Obs. (MRO) in New Mexico, 4 in MPECs 2010-A16 & 2010-A22 -- 2010 AE, 2009 XV, 2009 XT6, 2003 YL118
B82Maidbronn Obs. in Germany, 3 in MPEC 2010-A20 -- C/2009 U3, C/2008 P1, 232P
C10Maisoncelles Obs. in France, 1 in MPEC 2010-A20 -- 68P
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-A21 -- 2008 EB32
932McCarthy Obs. in Connecticut, 1 in MPEC 2010-A20 -- 31P
213Montcabre Obs. in Spain, 6 in MPECs 2010-A19 & 2010-A20 -- P/2009 Y2, P/2009 Q4, C/2007 Q3, 217P, 81P, 29P
945Monte Deva Obs. in Spain, 2 in MPEC 2010-A20 -- 217P, 118P
900Moriyama Obs. in Japan, 14 in MPECs 2010-A18, 2010-A20, 2010-A22 & 2010-A23 -- 2010 AF, 2010 AE, C/2009 Y1, P/2009 T2, P/2009 Q4, C/2008 P1, C/2007 Q3, C/2005 L3, 232P, 137P, 127P, 81P, 43P, 29P
J93Mt. Tuffley Obs. in England, 1 in MPEC 2010-A20 -- 30P
J47Nazaret Obs. in Spain, 3 in MPEC 2010-A20 -- 127P, 81P, 22P
583Odessa-Mayaki Obs., 2 in MPEC 2010-A20 -- C/2007 Q3, 81P
H06RAS Obs. Mayhill in New Mexico, 5 in MPEC 2010-A20 -- C/2008 N1, C/2007 D1, C/2005 L3, 203P, 22P
D90RAS Obs. Moorook in South Australia, 1 in MPEC 2010-A20 -- C/2007 M2
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 2 in MPECs 2010-A16 & 2010-A22 -- 2010 AE, 2009 QJ9
473Remanzacco Obs. in Italy, 2 in MPECs 2010-A17 & 2010-A20 -- C/2009 W2, P/2009 T2
939Rodeno Obs. in Spain, 9 in MPEC 2010-A20 -- P/2009 Q4, C/2007 Q3, C/2005 L3, 217P, 203P, 118P, 81P, 30P, 29P
461SZTE Asteroid Program in Hungary, 1 in MPEC 2010-A20 -- C/2007 D1
233San Vito Obs. in Italy, 1 in MPEC 2010-A20 -- 30P
204Schiaparelli Obs. in Italy, 1 in MPEC 2010-A20 -- 74P
691Spacewatch 0.9m telescope in Arizona, 12 in MPECs 2010-A16, 2010-A20 & 2010-A22 -- 2010 AE, 2009 WK6, 2006 KZ37, 2005 QL, 2001 RE8, 2000 OG8, 25143, 228587, 222008, 163692, 103067, 31P
291Spacewatch 1.8m telescope in Arizona, 10 in MPECs 2010-A16 & 2010-A22 -- 2010 AE, 2009 YU6, 2009 YS6, 2009 YG, 2009 XT6, 2009 XO, 2009 VT, 2009 TF10, 2004 XE6, 2003 CR1
H47Vicksburg Obs. in Mississippi, 8 in MPECs 2010-A16 & 2010-A20 -- C/2009 U3, P/2009 T2, P/2009 Q4, C/2007 Q3, 4015, 81P, 30P, 22P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 6 January '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2358 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 XOJPL Sentry1529203819.5e-08-4.52-4.520JPL: "Analysis based on 148 observations spanning 27.268 days (2009-Dec-09.152 to 2010-Jan-05.42037)." Diameter approximately 0.290 km. from mean, weighted H=20.3.
NEODyS15292038-206821.03e-07-4.49-4.510NEODyS: "Based on 148 optical observations (of which 0 are rejected as outliers) from 2009/12/09.153 to 2010/01/05.421."

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 6 January '10

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

2208Grabbed MPEC 2010-A23 - 2010 AF - see above
1834Grabbed MPEC 2010-A22 - 2010 AE - see above
1800Grabbed MPEC 2010-A21 - 2008 EB32 - see above
1731Grabbed MPEC 2010-A17 - Comet C/2009 W2 (Boattini) - see above
Grabbed MPEC 2010-A18 - Comet C/2009 Y1 (Catalina) - see above
Grabbed MPEC 2010-A19 - Comet P/2009 Y2 (Kowalski) - see above
Grabbed MPEC 2010-A20 - Observations of Comets - see above
1529Noted that JPL Sentry has updated its 2009 XO risk assessment - see above
Noted that NEODyS has updated its 2009 XO risk assessment - see above
Grabbed MPEC 2010-A16 - Daily Orbit Update - see above