Contents  on 23 July '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 23 July '07

Minor-Object Science  on 23 July '07

NEOCP Activity  on 23 July '07

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

When last checked at 2355 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two updated listings. So far Major News has counted a total of three 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 23 July '07

Minor Planet Electronic Circulars

As of last check at 2355 UTC, there has been one MPEC issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 23 July '07 >>  MPEC 2007-O40 - "06:07 UT" - Daily Orbit Update

Observers  on 23 July '07

Eight observing facilities appear in today's MPECs.

H55Astronomical Research Obs. in Illinois, 9 in MPEC 2007-O40 -- 2007 KD2, 2007 JG16, 2007 MG, 2007 JJ35, 2007 GC, 2007 DZ40, 2005 OU1, 2003 SW222, 1999 VG22
151Eschenberg Obs. in Switzerland, 1 in MPEC 2007-O40 -- 2003 MT9
A17Guidestar Obs. in Germany, 2 in MPEC 2007-O40 -- 2007 OH3, 2007 NC5
379Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2007-O40 -- 2007 LR32, 85275
E12Siding Spring Survey in New South Wales, 5 in MPEC 2007-O40 -- 2007 MC24, 2000 WG6, 7889, 2212, 1685
094Simeis Astrophysical Obs. in Ukraine, 1 in MPEC 2007-O40 -- 2007 DT103
A20Sogel Obs., 1 in MPEC 2007-O40 -- 2007 MB24
A78Stia Obs. in Italy, 2 in MPEC 2007-O40 -- 2007 NQ, 2007 ML13

Impact Risk Monitoring  on 23 July '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2355 UTC)
See the CRT page for a list of all objects rated as risks in the last 30 days.
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 OG3NEODyS19172028-205125.06e-09-5.64-5.640NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2007/07/19.450 to 2007/07/22.383."

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 23 July '07

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

2023Added news report, "Star Formation Newsletter"
Added link to news story, "UCI hosting world's top astronomers today"
Added link to news story, "May looks to sky to complete PhD"
Added link to news story, "Arizona Radio Observatory Team Discovers Supergiant Star Spews Molecules Needed for Life"
Added link to news story, "The threat from outer space"
Added link to news story, "Interstellar Chemistry Gets More Complex With New Charged-Molecule Discovery"
Added link to news story, "World Heritage status mooted for Tekapo sky"
1915Noted that NEODyS has posted 2007 OG3 as an impact risk - see above
1606Added MOS paper, "High Spatial Resolution Observations of Two Young Protostars in the R Corona Australis Region" - see above
Added MOS paper, "Implications of Interstellar Dust and Interstellar Magnetic Field at the Heliosphere" - see above
Added MOS paper, "Particle Stirring in Turbulent Gas Disks: Including Orbital Oscillations" - see above
1449Grabbed MPEC 2007-O40 - Daily Orbit Update - see above