Contents  on 27 August '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 27 August '08

The MPC's NEO Confirmation Page has 9 listings: 1 new, 8 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one new and eight updated listings. Of these, three were "one nighters." So far The Tracking News has counted a total of twelve 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 27 August '08

Minor Planet Electronic Circulars

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

<< DOU on 27 Aug. '08 >>  MPEC 2008-Q44 - "06:06 UT" - Daily Orbit Update

Observers  on 27 August '08

Thirteen observing facilities appear in today's MPEC.

CodeObserver / observatory
A44Altschwendt Obs. in Austria, 1 in MPEC 2008-Q44 -- 2008 QT3
A50Andrushivka Obs. in the Ukraine, 1 in MPEC 2008-Q44 -- 2008 ON10
H55Astronomical Research Obs. (ARO) in Illinois, 4 in MPEC 2008-Q44 -- 2008 QF, 2008 ON13, 2008 ON, 2008 OB9
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2008-Q44 -- 2008 QM2
185Jurassien-Vicques Obs. in Switzerland, 1 in MPEC 2008-Q44 -- 2008 QT3
246KLENOT in the Czech Republic, 1 in MPEC 2008-Q44 -- 2008 QF
704LINEAR in New Mexico, 8 in MPEC 2008-Q44 -- 2008 QU3, 2008 QM2, 2001 QL153, 86666, 190135, 1917, 1916, 1620
J75La Sagra Obs. in Spain, 1 in MPEC 2008-Q44 -- 2003 RM
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2008-Q44 -- 2007 YO56
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 11 in MPEC 2008-Q44 -- 2006 WZ2, 2005 TZ51, 2004 SB56, 2003 GW, 1994 AW1, 90403, 86666, 66008, 65690, 189700, 164400
473Remanzacco Obs. in Italy, 1 in MPEC 2008-Q44 -- 2004 SB56
E12Siding Spring Survey (SSS) in New South Wales, 6 in MPEC 2008-Q44 -- 2008 QC, 2008 QB, 2008 OM8, 85839, 24475, 7482
H53Thompsonville Obs. in Illinois, 3 in MPEC 2008-Q44 -- 90403, 164400, 4179
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 27 August '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
2008 QT3JPL Sentry14452016-21072051.0e-06-2.76-3.130JPL: "Analysis based on 46 observations spanning 1.9868 days (2008-Aug-24.89792 to 2008-Aug-26.88469)." Diameter approximately 0.642 km. from mean, weighted H=18.6.
NEODyS14452016-2089773.65e-07-3.04-3.280NEODyS: "Based on 46 optical observations (of which 0 are rejected as outliers) from 2008/08/24.899 to 2008/08/26.885."

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 27 August '08

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

1445Noted that JPL Sentry has updated its 2008 QT3 risk assessment - see above
Noted that NEODyS has posted 2008 QT3 as an impact risk - see above
Grabbed MPEC 2008-Q44 - Daily Orbit Update - see above