2007 WD5 on 8 Jan. from David Tholen's 
team on Mauna Kea, courtesy of NASA/JPL.

The NASA/JPL NEO Program Office reported very early today (still the 9th local time) that 2007 WD5's impact probability had dropped to "1 in 10,000 odds, effectively ruling out the possible collision with Mars." The report includes observing credits, such as the team in Hawaii that provided this image of the distant tiny asteroid (Tholen, Bernardi, Micheli with support from the NSF). Also see more news links yesterday.


Contents  on 10 January '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 this year 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 '08

The MPC's NEO Confirmation Page has 9 listings: 3 new, 6 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had three new and six updated listings. Of these, eight were "one nighters." So far The Tracking News has counted a total of ten 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 10 January '08

Minor Planet Electronic Circulars

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


MPEC 2008-A41 - "23:50 UT" - Comets C/2007 T7, 2007 T8, 2007 T9 (SOHO)


MPEC 2008-A40 - "23:31 UT" - Comets C/2007 S5, 2007 S6, 2007 S7, 2007 S8, 2007 S9, 2007 S10 (SOHO)


MPEC 2008-A39 - "20:45 UT" - 2008 AF3


<< DOU on 10 Jan. '08 >>  MPEC 2008-A38 - "07:08 UT" - Daily Orbit Update

Observers  on 10 January '08

Seventeen observing facilities appear in today's MPECs.

CodeObserver / observatory
726Brainerd Obs. in Minnesota, 3 in MPEC 2008-A38 -- 2007 YZ, 2005 XD1, 2005 WJ56
703Catalina Sky Survey in Arizona, 1 in MPEC 2008-A39 -- 2008 AF3
A77Chante-Perdrix Obs. in France, 1 in MPEC 2008-A38 -- 2005 WJ56
639Dresden Obs. in Germany, 3 in MPEC 2008-A38 -- 2007 PU11, 2005 XD1, 90403
114Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2008-A38 -- 68359
151Eschenberg Obs. in Switzerland, 1 in MPEC 2008-A39 -- 2008 AF3
595Farra d'Isonzo Obs. in Italy, 2 in MPEC 2008-A38 -- 2005 WJ56, 136793
143Gnosca Obs. in Switzerland, 1 in MPEC 2008-A39 -- 2008 AF3
B15Inastars Obs. in Germany, 2 in MPEC 2008-A38 -- 90403, 138947
704LINEAR in New Mexico, 8 in MPEC 2008-A38 -- 90403, 68359, 68063, 35107, 170903, 9400, 4503, 4450
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2008-A38 -- 2007 WD5
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 16 in MPEC 2008-A38 -- 2007 YZ, 2007 YF1, 2007 WF55, 2007 VH3, 2007 US6, 2007 SP6, 2005 XK8, 2005 XD1, 2005 WJ56, 2005 TU45, 1993 TQ2, 90403, 68359, 138947, 136793, 5131
D29Purple Mtn. Obs. XuYi Station in China, 1 in MPEC 2008-A38 -- 68063
204Schiaparelli Obs. in Italy, 2 in MPEC 2008-A38 -- 2005 XD1, 2005 WJ56
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2008-A38 -- 2008 AX1, 2008 AG1
2492LASCO Coronagraph 2 (SOHO C2) via the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 9 in MPECs 2008-A40 & 2008-A41 -- C/2007 T9, C/2007 T8, C/2007 T7, C/2007 S9, C/2007 S8, C/2007 S7, C/2007 S6, C/2007 S5, C/2007 S10
2493LASCO Coronagraph 3 (SOHO C3) via the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 8 in MPECs 2008-A40 & 2008-A41 -- C/2007 T9, C/2007 T8, C/2007 T7, C/2007 S9, C/2007 S8, C/2007 S6, C/2007 S5, C/2007 S10
A78Stia Obs. in Italy, 2 in MPEC 2008-A38 -- 2008 AD, 2007 VR183

Impact Risk Monitoring  on 10 January '08

At last check (NEODyS and JPL at 2354 UTC) there was no risk monitoring news to report yet today. See the CRT for activity in the last month.

Chronology  on 10 January '08

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

2354Grabbed MPEC 2008-A40 - Comets C/2007 S5, 2007 S6, 2007 S7, 2007 S8, 2007 S9, 2007 S10 (SOHO) - see above
Grabbed MPEC 2008-A41 - Comets C/2007 T7, 2007 T8, 2007 T9 (SOHO) - see above
2126Grabbed MPEC 2008-A39 - 2008 AF3 - see above
1506Grabbed MPEC 2008-A38 - Daily Orbit Update - see above