Contents  on 9 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 9 August '07

Minor-Object Science  on 9 August '07

NEOCP Activity  on 9 August '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." So far Major News has counted a total of five objects listed on the NEOCP at some point today.

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

New MPECs  on 9 August '07

Minor Planet Electronic Circulars

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

MPEC 2007-P23 - "20:35 UT" - Comet C/2007 P1 (McNaught)

<< DOU on 9 Aug. '07 >>  MPEC 2007-P22 - "06:07 UT" - Daily Orbit Update

Observers  on 9 August '07

Ten observing facilities appear in today's MPECs.

H55Astronomical Research Obs. in Illinois, 6 in MPEC 2007-P22 -- 2007 OH3, 2007 KD2, 2007 NQ, 2007 ML13, 2007 MH, 2007 LL
235CAST Obs. in Italy, 1 in MPEC 2007-P22 -- 24443
H98Dark Roseanne Obs. in Connecticut, 1 in MPEC 2007-P22 -- 2007 LR32
704LINEAR in New Mexico, 3 in MPEC 2007-P22 -- 2004 BE11, 2000 QT7, 2100
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2007-P22 -- 2007 LR32
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2007-P22 -- 2007 ML24
A24New Millennium Obs. in Italy, 7 in MPEC 2007-P22 -- 2007 NC5, 2007 LR32, 2004 ST9, 145656, 136818, 86324, 85275
H45Petit Jean Mtn. South Obs. in Arkansas, 19 in MPEC 2007-P22 -- 2007 NC5, 2007 NQ, 2007 MM13, 2007 LR32, 2007 LB15, 2007 LA15, 2007 LV8, 2007 HX82, 2007 CK26, 2006 GB, 2004 ST9, 1999 VO6, 145656, 87309, 86324, 85275, 24443, 21277, 16636
428Reedy Creek Obs. in Queensland, 1 in MPEC 2007-P23 -- C/2007 P1
E12Siding Spring Survey in New South Wales, 3 in MPECs 2007-P22 & 2007-P23 -- C/2007 P1, 2005 GG, 2000 WG6

Impact Risk Monitoring  on 9 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 as risks in the last month.
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2080.
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 ML24JPL1431R E M O V E DJPL: Risk listing removed at 1037 UTC.

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 9 August '07

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

2209Grabbed MPEC 2007-P23 - Comet C/2007 P1 (McNaught) - see above
1848Added link to news story, "How to convert an asteroid into a rocket"
Added link to news story, "Astronomers Find New Star 'Family'"
Added link to news story, "Perseids Provide Practice for September Shower"
Added link to news story, "SEDS 'Got Vision' Space Art Contest"
1535Added MOS paper, "Ammonia Imaging of the Disks in the NGC 1333 IRAS 4A Protobinary System" - see above
Added MOS paper, "Statistics of Core Lifetimes in Numerical Simulations of Turbulent, Magnetically Supercritical Molecular Clouds" - see above
Added link to news story, "Strange Lights: The 2007 Aurigid Meteor Shower"
Added link to news story, "Can meteorites carry primitive life from one planet to another?"
Added link to news story, "An earth-shattering debate that merits gravity"
1432Grabbed MPEC 2007-P22 - Daily Orbit Update - see above
1431Noted that JPL has removed 2007 ML24 as an impact risk - see above
Noted that NEODyS has removed 2007 ML24 as an impact risk - see above
0204The NEOCP has become active