Contents  on 2 July '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 2 July '08

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

When last checked at 2357 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had four updated listings. Of these, two were "one nighters." So far The Tracking News has counted a total of seven 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 2 July '08

Minor Planet Electronic Circulars

As of last check at 2357 UTC, there have been three MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-N09 - "11:43 UT" - 2008 NB

MPEC 2008-N08 - "11:39 UT" - 2008 NA

<< DOU on 2 July '08 >>  MPEC 2008-N07 - "06:06 UT" - Daily Orbit Update

Observers  on 2 July '08

A total of 21 observing facilities appear in today's MPECs.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 2 in MPECs 2008-N07 & 2008-N08 -- 2008 NA, 2008 MP1
H55Astronomical Research Obs. (ARO) in Illinois, 16 in MPEC 2008-N07 -- 2008 MR1, 2008 MQ1, 2008 MP1, 2008 MN1, 2008 LQ16, 2008 LH2, 2008 KZ5, 2008 KW2, 2008 KV28, 2008 JZ30, 2008 JR26, 2008 JO24, 2008 HS3, 2008 GR3, 2008 EQ7, 2008 EL6
432Boambee Obs. in New South Wales, 7 in MPEC 2008-N07 -- 2005 GO21, 1994 AW1, 39572, 36236, 21088, 102873, 1980
703Catalina Sky Survey (CSS) in Arizona, 9 in MPECs 2008-N07, 2008-N08 & 2008-N09 -- 2008 NB, 2008 NA, 2008 JO24, 65996, 53319, 164400, 144332, 7358, 1980
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2008-N09 -- 2008 NB
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2008-N08 -- 2008 NA
651Grasslands Obs. in Arizona, 1 in MPEC 2008-N08 -- 2008 NA
J95Great Shefford Obs. in England, 1 in MPEC 2008-N07 -- 2008 LQ16
A17Guidestar Obs. in Germany, 1 in MPEC 2008-N08 -- 2008 NA
B15Inastars Obs. in Germany, 1 in MPEC 2008-N07 -- 184990
185Jurassien-Vicques Obs. in Switzerland, 1 in MPEC 2008-N07 -- 7889
704LINEAR in New Mexico, 8 in MPEC 2008-N07 -- 2008 MQ1, 2003 OB4, 2003 NC, 2002 WP11, 88254, 153792, 5751, 1980
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2008-N08 -- 2008 NA
A53Peschiera del Garda Obs. in Italy, 1 in MPEC 2008-N07 -- 2008 JT35
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2008-N09 -- 2008 NB
649Powell Obs. in Kansas, 4 in MPEC 2008-N07 -- 2008 MQ1, 2008 LV16, 2008 KW2, 2008 JT35
204Schiaparelli Obs. in Italy, 1 in MPEC 2008-N08 -- 2008 NA
E12Siding Spring Survey (SSS) in New South Wales, 4 in MPEC 2008-N07 -- 2007 VQ4, 2005 GO21, 96189, 4503
691Spacewatch 0.9m telescope in Arizona, 6 in MPEC 2008-N07 -- 2008 MP1, 2006 WO127, 1997 NJ6, 154715, 4660, 4179
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2008-N07 -- 2008 EA9
6735Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2008-N08 -- 2008 NA
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 2 July '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2357 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 MV1NEODyS13462026-2090181.5e-07-5.05-5.490NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2008/06/30.663 to 2008/07/01.599."
2008 EA9NEODyS16302061-2090192.88e-05-6.23-6.540NEODyS: "Based on 60 optical observations (of which 1 are rejected as outliers) from 2008/03/06.406 to 2008/04/11.248."
JPL Sentry13442068-2105112.9e-05-6.22-6.530JPL: "Analysis based on 59 observations spanning 35.842 days (2008-Mar-06.40551 to 2008-Apr-11.24756)." Diameter approximately 0.010 km. from mean, weighted H=27.7.

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 2 July '08

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

1630Noted that NEODyS has updated its 2008 EA9 risk assessment - see above
1346Grabbed MPEC 2008-N07 - Daily Orbit Update - see above
1345Grabbed MPEC 2008-N08 - 2008 NA - see above
Grabbed MPEC 2008-N09 - 2008 NB - see above
1344Noted that JPL Sentry has updated its 2008 EA9 risk assessment - see above
Noted that NEODyS has posted 2008 MV1 as an impact risk - see above