Contents  on 12 October '08


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 12 October '08

The MPC's NEO Confirmation Page has 7 listings: 7 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had seven updated listings. Of these, one was a "one nighter."

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 12 October '08

Minor Planet Electronic Circulars

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

MPEC 2008-T124 - "20:56 UT" - 2007 JJ35

<< DOU on 12 Oct. '08 >>  MPEC 2008-T123 - "06:10 UT" - Daily Orbit Update

Observers  on 12 October '08

Fourteen observing facilities appear in today's MPECs.

CodeObserver / observatory
B37Ametlla del Valles Obs. in Spain, 1 in MPEC 2008-T123 -- 16960
H55Astronomical Research Obs. (ARO) in Illinois, 32 in MPECs 2008-T123 & 2008-T124 -- 2008 TY9, 2008 TX3, 2008 TL, 2008 TK9, 2008 TJ, 2008 TH, 2008 TF, 2008 TE4, 2008 TD4, 2008 TC4, 2008 TC, 2008 SY148, 2008 SW1, 2008 SV7, 2008 SU1, 2008 SQ, 2008 SP7, 2008 SO1, 2008 SG148, 2008 SE, 2008 RZ24, 2008 RX24, 2008 RV, 2008 RT26, 2008 RJ1, 2008 RG1, 2008 RE80, 2008 QZ, 2008 QC, 2008 OX8, 2008 NB, 2007 JJ35
J51Atlante Obs. in the Canary Islands, 2 in MPEC 2008-T123 -- 2008 SQ, 2008 SE
113Drebach Obs. in Germany, 2 in MPEC 2008-T123 -- 2001 UZ16, 1994 AW1
683Goodricke-Pigott Obs. in Arizona, 2 in MPEC 2008-T123 -- 2008 QC, 190491
379Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2008-T123 -- 2008 SE, 16960
B15Inastars Obs. in Germany, 2 in MPEC 2008-T123 -- 2001 UZ16, 90403
J59Linceo Obs. in Spain, 1 in MPEC 2008-T123 -- 8567
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2008-T123 -- 2006 GW2
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2008-T123 -- 2008 MR1
A13Naef Obs. in Switzerland, 1 in MPEC 2008-T123 -- 105140
204Schiaparelli Obs. in Italy, 1 in MPEC 2008-T123 -- 2008 TT26
A78Stia Obs. in Italy, 1 in MPEC 2008-T123 -- 2008 SN1
A16Tentlingen Obs. in Switzerland, 1 in MPEC 2008-T123 -- 2008 SQ1
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 12 October '08

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.





Notes for Today's Latest Risk Assessments
2003 UM3JPL Sentry03592022-21071102.7e-06-7.00-7.880JPL: "Analysis based on 12 observations spanning 1.0106 days (2003-Oct-17.30722 to 2003-Oct-18.3178)." Diameter approximately 0.008 km. from mean, weighted H=28.1.

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 12 October '08

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

2115Grabbed MPEC 2008-T124 - 2007 JJ35 - see above
1505Grabbed MPEC 2008-T123 - Daily Orbit Update - see above
0359Noted that JPL Sentry has updated its 2003 UM3 risk assessment - see above