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Contents  on 30 November '07

Resources:

The latest news: framed access (best), RSS news feed RSS news feed (flags updates), or redirection - Note: A/CC has a main Web site and a backup site, which now has its own backup 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.

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NEOCP Activity  on 30 November '07

The MPC's NEO Confirmation Page has 4 listings: 2 new, 2 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two new and two updated listings. Of these, three were "one nighters."

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object by Birtwhistle et al. at Suno Observatory.

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New MPECs  on 30 November '07

Minor Planet Electronic Circulars

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


<< DOU on 30 Nov. '07 >>  MPEC 2007-W80 - "07:10 UT" - Daily Orbit Update

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Observers  on 30 November '07

Ten observing facilities appear in today's MPEC.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 2 in MPEC 2007-W80 -- 2007 VQ4, 136793
J95Great Shefford Obs. in England, 1 in MPEC 2007-W80 -- 2007 WX4
951Highworth Obs. in England, 1 in MPEC 2007-W80 -- 162142
704LINEAR in New Mexico, 3 in MPEC 2007-W80 -- 2007 US6, 2007 RT147, 99907
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2007-W80 -- 2007 VY7
A24New Millennium Obs. in Italy, 25 in MPEC 2007-W80 -- 2007 US6, 2007 TG8, 2007 TG15, 2007 TB23, 2007 SP6, 2007 SE11, 2007 RU12, 2007 LR32, 2004 RD252, 1993 TQ2, 99907, 86324, 85804, 30997, 20826, 18736, 170891, 170502, 168044, 143678, 138893, 137084, 11500, 3553, 2212
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 8 in MPEC 2007-W80 -- 2007 VR183, 2007 VQ4, 2007 SP6, 1993 TQ2, 68359, 66251, 170891, 1580
A78Stia Obs. in Italy, 3 in MPEC 2007-W80 -- 2007 WZ4, 2007 VX7, 2007 VQ4
H53Thompsonville Obs. in Illinois, 1 in MPEC 2007-W80 -- 2007 TG8
A82Trieste Obs. in Italy, 2 in MPEC 2007-W80 -- 2007 US6, 2007 RU12

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Impact Risk Monitoring  on 30 November '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2354 UTC)
See the CRT page for a list of all objects rated recently as risks.
Note that the time horizon for JPL is 100 years from today and for NEODyS is now 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
2007 WP3JPL Sentry01162098-2106115.8e-06-4.79-5.290JPL: "Analysis based on 44 observations spanning 9.0005 days (2007-Nov-18.26457 to 2007-Nov-27.265045)." Diameter approximately 0.066 km. from mean, weighted H=23.6.

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.

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Chronology  on 30 November '07

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

1445Grabbed MPEC 2007-W80 - Daily Orbit Update - see above
0116Noted that JPL Sentry has updated its 2007 WP3 risk assessment - see above