Contents  on 12 August '07


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

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.

Minor-Object News  on 12 August '07

Minor-Object Science  on 12 August '07

No science papers are known or prepared yet today.

NEOCP Activity  on 12 August '07

The MPC's NEO Confirmation Page has 7 listings: 1 new, 6 updated

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

To learn how observers use the NEOCP, see Suno Observatory's Practical guide on how to observe NEOCP object.

New MPECs  on 12 August '07

Minor Planet Electronic Circulars

As of last check at 2353 UTC, there has been one MPEC issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 12 Aug. '07 >>  MPEC 2007-P40 - "06:06 UT" - Daily Orbit Update

Observers  on 12 August '07

Eighteen observing facilities appear in today's MPECs.

H55Astronomical Research Obs. in Illinois, 7 in MPEC 2007-P40 -- 2007 PA8, 2007 PF2, 2007 JG16, 2007 MB24, 2007 JE40, 2002 FC, 1999 RK45
J51Atlante Obs. in the Canary Islands, 2 in MPEC 2007-P40 -- 2007 LR32, 2007 DT103
432Boambee Obs. in New South Wales, 1 in MPEC 2007-P40 -- 1685
0952program code 2 via Crimean Astrophysical Obs. in the Ukraine, 2 in MPEC 2007-P40 -- 2007 PA8, 2007 PB8
151Eschenberg Obs. in Switzerland, 7 in MPEC 2007-P40 -- 2005 GE59, 2003 EF54, 2002 NN4, 2001 QC34, 1999 JU3, 1999 DB7, 1994 AW1
J95Great Shefford Obs. in England, 3 in MPEC 2007-P40 -- 2007 PF6, 2007 OR9, 2007 PB8
A17Guidestar Obs. in Germany, 3 in MPEC 2007-P40 -- 2007 JZ20, 2002 NN4, 1997 PN
B19Iluro Obs. in Spain, 2 in MPEC 2007-P40 -- 2007 LR32, 2007 DT103
704LINEAR in New Mexico, 10 in MPEC 2007-P40 -- 2007 PA8, 2007 HE15, 2007 DT103, 2005 GO22, 2004 BE11, 2003 BB43, 2000 QT7, 54686, 24443, 2100
E17Leura Obs. in New South Wales, 1 in MPEC 2007-P40 -- 140158
J59Linceo Obs. in Spain, 1 in MPEC 2007-P40 -- 2007 DT103
A24New Millennium Obs. in Italy, 4 in MPEC 2007-P40 -- 145656, 136818, 86324, 85275
J69North Obs. in England, 1 in MPEC 2007-P40 -- 2007 PE8
D29Purple Mtn. Obs. XuYi Station in China, 1 in MPEC 2007-P40 -- 2007 FK1
204Schiaparelli Obs. in Italy, 1 in MPEC 2007-P40 -- 2007 NC5
D21Shenton Park Obs., 2 in MPEC 2007-P40 -- 2007 PF6, 2007 PP6
E12Siding Spring Survey in New South Wales, 3 in MPEC 2007-P40 -- 2007 ML6, 2003 CG11, 2002 AV31
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2007-P40 -- 2007 PB8

Impact Risk Monitoring  on 12 August '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.





Notes for Today's Latest Risk Assessments
2007 PF6JPL1432R E M O V E DJPL: Risk listing removed at 1021 UTC.
2007 PA8JPL14322019-2104346.4e-08-2.38-3.020JPL: "Analysis based on 29 observations spanning 2.7216 days (2007-Aug-09.21035 to 2007-Aug-11.93195)." Diameter approximately 2.681 km. from mean, weighted H=15.5.
NEODyS14322019-2090233.32e-08-2.44-3.090NEODyS: "Based on 29 optical observations (of which 0 are rejected as outliers) from 2007/08/09.211 to 2007/08/11.933."

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 an 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" for more about this.

Chronology  on 12 August '07

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

1800Added link to news story, "Names and colors changed as school districts combined"
1432Noted that JPL has updated its 2007 PA8 risk assessment - see above
Noted that NEODyS has posted 2007 PA8 as an impact risk - see above
Noted that JPL has removed 2007 PF6 as an impact risk - see above
Noted that NEODyS has removed 2007 PF6 as an impact risk - see above
Grabbed MPEC 2007-P40 - Daily Orbit Update - see above