Contents  on 9 January '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 9 January '09

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

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one updated listing. So far The Tracking News has counted a total of two 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 9 January '09

Minor Planet Electronic Circulars

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


MPEC 2009-A55 - "16:04 UT" - Observations of Comets


MPEC 2009-A54 - "15:57 UT" - Comet P/2008 Y3 (McNaught)


MPEC 2009-A53 - "15:50 UT" - Comet P/2008 Y2 (Gibbs)


MPEC 2009-A52 - "15:46 UT" - Comet C/2008 Y1 (Boattini)


MPEC 2009-A51 - "15:41 UT" - Comet C/2008 X3 (LINEAR)


MPEC 2009-A50 - "13:08 UT" - 2005 UF1


<< DOU on 9 Jan. '09 >>  MPEC 2009-A49 - "07:12 UT" - Daily Orbit Update

Observers  on 9 January '09

A total of 46 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 6 in MPECs 2009-A51 & 2009-A55 -- C/2008 X3, C/2006 W3, C/2006 U6, 67P, 47P, 6P
J97Alginet Obs. in Spain, 1 in MPEC 2009-A55 -- 29P
J24Altamira Obs. in Spain, 3 in MPEC 2009-A55 -- 47P, 22P, 19P
J20Aravaca Obs., 3 in MPEC 2009-A55 -- C/2008 T2, C/2006 OF2, 29P
H55Astronomical Research Obs. in Illinois, 1 in MPEC 2009-A49 -- 2009 AL15
467Auckland Obs. in New Zealand, 2 in MPEC 2009-A55 -- C/2007 Q3, 67P
235CAST Obs. in Italy, 6 in MPEC 2009-A55 -- C/2008 T2, C/2006 W3, C/2006 OF2, 144P, 67P, 29P
B20Carmelita Obs. in Spain, 1 in MPEC 2009-A55 -- C/2006 OF2
703Catalina Sky Survey in Arizona, 1 in MPEC 2009-A55 -- C/2008 S3
448Desert Moon Obs. in New Mexico, 6 in MPEC 2009-A49 -- 2009 AT, 2009 AN, 2008 YU30, 2008 CH116, 2006 UC63, 68350
J27El Guijo Obs. in Spain, 1 in MPEC 2009-A55 -- 29P
E85Farm Cove Obs. in New Zealand, 3 in MPEC 2009-A55 -- C/2008 E1, C/2007 Q3, C/2006 K4
B83Gieres Obs., 3 in MPEC 2009-A55 -- C/2006 OF2, 144P, 29P
458Guadarrama Obs. in Spain, 2 in MPEC 2009-A55 -- C/2006 OF2, 29P
379Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2009-A55 -- C/2006 W3, C/2006 OF2
415Kambah Obs. in the Australian Capital Territory, 4 in MPEC 2009-A55 -- C/2007 S2, C/2007 Q3, 195P, 116P
585Kiev Comet Station in the Ukraine, 3 in MPECs 2009-A53 & 2009-A55 -- P/2008 Y2, P/2008 X1, 29P
704LINEAR in New Mexico, 4 in MPECs 2009-A49, 2009-A51 & 2009-A55 -- C/2008 X3, 152931, 209P, 205P
212La Dehesilla Obs. in Spain, 15 in MPECs 2009-A51 & 2009-A55 -- C/2008 X3, C/2007 N3, C/2006 Q1, C/2006 OF2, C/2005 L3, 209P, 204P, 116P, 77P, 74P, 65P, 29P, 22P, 19P, 17P
J55Los Altos de Arguineguin Obs. in the Canary Islands, 5 in MPEC 2009-A55 -- C/2006 W3, C/2006 OF2, 144P, 29P, 17P
D35Lulin Minor Bodies Tracking (LIMIT) in Taiwan, 2 in MPECs 2009-A54 & 2009-A55 -- P/2008 Y3, C/2007 N3
130Lumezzane Obs. in Italy, 2 in MPEC 2009-A55 -- C/2008 T2, C/2008 E1
J40Malaga Obs. in Spain, 2 in MPEC 2009-A55 -- 209P, 29P
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2009-A50 -- 2005 UF1
213Montcabre Obs. in Spain, 2 in MPEC 2009-A55 -- C/2006 OF2, 29P
900Moriyama Obs. in Japan, 3 in MPECs 2009-A53 & 2009-A55 -- P/2008 Y2, C/2008 E1, 195P
474Mt. John Obs. in New Zealand, 5 in MPEC 2009-A55 -- P/2008 S1, C/2007 Q3, C/2006 U6, C/2006 E1, 206P
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2009-A54 -- P/2008 Y3
J47Nazaret Obs. in Spain, 3 in MPEC 2009-A55 -- 205P, 67P, 29P
423North Ryde Obs. in New South Wales, 3 in MPEC 2009-A55 -- C/2007 Q3, C/2007 M2, C/2006 K4
B49Paus Obs. in Spain, 1 in MPEC 2009-A55 -- 17P
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 8 in MPECs 2009-A51, 2009-A52, 2009-A53 & 2009-A55 -- P/2008 Y2, C/2008 Y1, C/2008 X3, 209P, 77P, 74P, 65P, 19P
H06RAS Obs. Mayhill in New Mexico, 2 in MPEC 2009-A55 -- P/2008 X4, C/2007 N3
H06\program code "\" (26) via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-A49 -- 142348
473Remanzacco Obs. in Italy, 1 in MPEC 2009-A55 -- 29P
H36Sandlot Obs. in Kansas, 1 in MPEC 2009-A55 -- C/2007 S2
204Schiaparelli Obs. in Italy, 6 in MPEC 2009-A55 -- P/2008 S1, 205P, 193P, 94P, 67P, 6P
E12Siding Spring Survey (SSS) in New South Wales, 3 in MPEC 2009-A49 -- 2009 AK15, 161989, 4957
691Spacewatch 0.9m telescope in Arizona, 7 in MPECs 2009-A49 & 2009-A55 -- 2009 AN, 1998 WT30, 19764, 159923, 159368, 155334, 204P
291Spacewatch 1.8m telescope in Arizona, 9 in MPECs 2009-A49 & 2009-A55 -- 2009 AV, 2008 YS27, 2008 YF29, 2008 YE30, 2008 YA29, C/2007 S2, 2001 PD1, 2000 EL26, 175706
611Starkenburg Obs. in Germany, 2 in MPEC 2009-A49 -- 35107, 4179
A71Stixendorf Obs. in Austria, 4 in MPEC 2009-A55 -- 204P, 116P, 74P, 29P
673Table Mtn. Obs. in southern California, 4 in MPECs 2009-A51, 2009-A53, 2009-A54 & 2009-A55 -- P/2008 Y3, P/2008 Y2, C/2008 X3, P/2008 X1
H53Thompsonville Obs. in Illinois, 5 in MPEC 2009-A49 -- 194386, 162900, 5332, 1980, 1627
B51Vallauris Obs. in France, 1 in MPEC 2009-A55 -- 29P
A11Wormhout Obs. in France, 2 in MPEC 2009-A55 -- 29P, 19P
367Yatsuka Obs. in Japan, 4 in MPEC 2009-A55 -- P/2008 X4, C/2007 N3, C/2006 Q1, C/2005 L3
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 9 January '09

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.
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
2009 AM15NEODyS15352013-2089171.38e-07-2.70-3.130NEODyS: "Based on 8 optical observations (of which 0 are rejected as outliers) from 2009/01/06.619 to 2009/01/08.715."
2009 AVJPL Sentry1535R E M O V E DJPL: Risk listing removed at 1051 UTC.
NEODyS1535R E M O V E D-
2008 YF29NEODyS1535209011.87e-07-6.62-6.620NEODyS: "Based on 46 optical observations (of which 0 are rejected as outliers) from 2008/12/30.250 to 2009/01/08.344."

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 9 January '09

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

1620Grabbed MPEC 2009-A51 - Comet C/2008 X3 (LINEAR) - see above
Grabbed MPEC 2009-A52 - Comet C/2008 Y1 (Boattini) - see above
Grabbed MPEC 2009-A53 - Comet P/2008 Y2 (Gibbs) - see above
Grabbed MPEC 2009-A54 - Comet P/2008 Y3 (McNaught) - see above
Grabbed MPEC 2009-A55 - Observations of Comets - see above
1535Noted that NEODyS has updated its 2008 YF29 risk assessment - see above
Noted that NEODyS has posted 2009 AM15 as an impact risk - see above
Noted that JPL Sentry has removed 2009 AV as an impact risk - see above
Noted that NEODyS has removed 2009 AV as an impact risk - see above
Grabbed MPEC 2009-A49 - Daily Orbit Update - see above
Grabbed MPEC 2009-A50 - 2005 UF1 - see above