Contents  on 2 November '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 November '08

The MPC's NEO Confirmation Page has 21 listings: 5 new, 16 updated

When last checked at 2359 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had five new and sixteen updated listings. Of these, ten were "one nighters." So far The Tracking News has counted a total of 22 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 November '08

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been two MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2008-V03 - "16:19 UT" - 2007 LD

<< DOU on 2 Nov. '08 >>  MPEC 2008-V02 - "06:14 UT" - Daily Orbit Update

Observers  on 2 November '08

Fourteen observing facilities appear in today's MPECs.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 2 in MPEC 2008-V02 -- 2008 TZ3, 2008 ST7
703Catalina Sky Survey (CSS) in Arizona, 15 in MPEC 2008-V02 -- 2008 TK157, 2008 SP7, 2008 NU, 2008 MR1, 2006 GZ, 2005 YS165, 2005 TZ51, 2002 VY94, 2001 VG5, 2001 TW1, 1996 TE9, 190119, 162679, 1865, 1620
448Desert Moon Obs. in New Mexico, 3 in MPEC 2008-V02 -- 2008 TK157, 2008 SX7, 2000 FL1
704LINEAR in New Mexico, 13 in MPEC 2008-V02 -- 2008 TK157, 2008 TF4, 90075, 163000, 162900, 162004, 155110, 137799, 136923, 7358, 2368, 2201, 1865
844Los Molinos Obs. in Uruguay, 1 in MPEC 2008-V02 -- 2008 SP7
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2008-V02 -- 2008 UP100
5682David Tholen's team on Mauna Kea in Hawaii, 2 in MPECs 2008-V02 & 2008-V03 -- 2007 LD, 2005 VP118
G96Mt. Lemmon Survey (MLS) in Arizona, 5 in MPEC 2008-V02 -- 2008 US4, 2008 TD4, 2008 QC, 2007 GS3, 2005 EA60
204Schiaparelli Obs. in Italy, 3 in MPEC 2008-V02 -- 2008 UT1, 2008 MH1, 142348
691Spacewatch 0.9m telescope in Arizona, 5 in MPEC 2008-V02 -- 2008 UO90, 2008 TD2, 2008 SE, 2008 RX24, 190166
291Spacewatch 1.8m telescope in Arizona, 12 in MPEC 2008-V02 -- 2008 UW91, 2008 UV, 2008 UU99, 2008 UU95, 2008 UO90, 2008 TQ10, 2008 TJ157, 2008 TD27, 2008 SO, 2008 SF8, 2008 RM98, 2005 AT42
A98Taurus-1 Obs. in Belarus, 2 in MPEC 2008-V02 -- 2006 SZ217, 162900
H53Thompsonville Obs. in Illinois, 2 in MPEC 2008-V02 -- 2008 US4, 2008 SQ1
H83Timberlake Obs. in Virginia, 1 in MPEC 2008-V02 -- 185851
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 2 November '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2359 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 UU95NEODyS14512046-2090261.05e-07-6.16-6.620NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2008/10/30.380 to 2008/11/01.206."
JPL Sentry14502046-2107261.9e-07-5.99-6.740JPL: "Analysis based on 21 observations spanning 1.8265 days (2008-Oct-30.37925 to 2008-Nov-01.20573)." Diameter approximately 0.072 km. from mean, weighted H=23.4.
2008 ST7NEODyS14512062-208954.41e-07-6.11-6.290NEODyS: "Based on 121 optical observations (of which 6 are rejected as outliers) from 2008/09/24.301 to 2008/11/01.145."
JPL Sentry14502074-2105183.3e-05-4.36-4.670JPL: "Analysis based on 115 observations spanning 37.845 days (2008-Sep-24.29993 to 2008-Nov-01.14445)." Diameter approximately 0.052 km. from mean, weighted H=24.1.
2004 XY130NEODyS1450R E M O V E D-

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 November '08

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

1621Grabbed MPEC 2008-V03 - 2007 LD - see above
1451Noted that NEODyS has updated its 2008 ST7 risk assessment - see above
Noted that NEODyS has updated its 2008 UU95 risk assessment - see above
Grabbed MPEC 2008-V02 - Daily Orbit Update - see above
1450Noted that NEODyS has removed 2004 XY130 as an impact risk - see above
Noted that JPL Sentry has updated its 2008 ST7 risk assessment - see above
Noted that JPL Sentry has updated its 2008 UU95 risk assessment - see above