Contents  on 3 November '07

Resources:

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

NEOCP Activity  on 3 November '07

The MPC's NEO Confirmation Page has 41 listings: 17 new, 24 updated

When last checked at 2213 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had seventeen new and 24 updated listings. Of these, 26 were "one nighters." So far The Tracking News has counted a total of 53 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 3 November '07

Minor Planet Electronic Circulars

As of last check at 2213 UTC, there have been three MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2007-V12 - "14:18 UT" - Comet C/2007 T5 (Gibbs)


MPEC 2007-V11 - "14:13 UT" - Comet P/2007 T2 (Kowalski)


<< DOU on 3 Nov. '07 >>  MPEC 2007-V10 - "06:10 UT" - Daily Orbit Update

Observers  on 3 November '07

A total of 20 observing facilities appear in today's MPECs.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 10 in MPEC 2007-V10 -- 2007 VG, 2007 UX1, 2007 US65, 2007 UD6, 2007 TV18, 2007 TB14, 2007 SV2, 2007 RQ17, 2007 RP12, 2007 PP9
J51Atlante Obs. in the Canary Islands, 2 in MPEC 2007-V10 -- 2007 US6, 2007 PU11
703Catalina Sky Survey (CSS) in Arizona, 3 in MPEC 2007-V10 -- 2007 UH, 2002 RC118, 144900
850Cordell-Lorenz Obs. in Tennessee, 2 in MPECs 2007-V11 & 2007-V12 -- C/2007 T5, P/2007 T2
106Crni Vrh Obs. in Slovenia, 2 in MPEC 2007-V10 -- 2007 US6, 2001 RY47
151Eschenberg Obs. in Switzerland, 1 in MPEC 2007-V10 -- 2007 UK40
203GiaGa Obs. in Italy, 1 in MPEC 2007-V10 -- 162142
585Kiev Comet Station in the Ukraine, 1 in MPEC 2007-V11 -- P/2007 T2
704LINEAR in New Mexico, 7 in MPEC 2007-V10 -- 2007 TY18, 2007 KN4, 2002 UA31, 163760, 138971, 11500, 1580
J46Montana Blanca Obs. in the Canary Islands, 1 in MPEC 2007-V10 -- 53426
213Montcabre Obs. in Spain, 1 in MPEC 2007-V12 -- C/2007 T5
G96Mt. Lemmon Survey (MLS) in Arizona, 9 in MPECs 2007-V10 & 2007-V11 -- 2007 UY1, 2007 UR51, 2007 UR, 2007 UQ51, 2007 UQ13, 2007 TH72, P/2007 T2, 2007 RZ19, 2006 RJ1
J93Mt. Tuffley Obs. in England, 1 in MPEC 2007-V10 -- 4954
A13Naef Obs. in Switzerland, 2 in MPEC 2007-V10 -- 2007 UW3, 68063
A24New Millennium Obs. in Italy, 14 in MPEC 2007-V10 -- 2007 TG8, 2007 TG15, 2007 RF5, 2007 LR32, 2006 RO36, 2002 UA31, 86324, 53426, 16636, 162173, 152787, 138893, 137084, 105140
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPEC 2007-V10 -- 2007 US12, 2007 UK40, 2007 TX18, 2007 TG15, 2007 RU12, 2007 PU11, 2004 KE1
D21Shenton Park Obs. in Western Australia, 5 in MPEC 2007-V10 -- 2007 UW3, 2007 TR24, 2007 TD71, 2007 TC66, 1990 UO
691Spacewatch 0.9m telescope in Arizona, 3 in MPEC 2007-V10 -- 18736, 163051, 136617
291Spacewatch 1.8m telescope in Arizona, 16 in MPEC 2007-V10 -- 2007 UY1, 2007 US51, 2007 UR51, 2007 UR3, 2007 UN12, 2007 UL12, 2007 UH, 2007 TS68, 2007 TQ24, 2007 TK15, 2007 TH19, 2006 WR1, 2006 SP134, 2006 CV, 2003 WL25, 2003 UC5
H47Vicksburg Obs. in Mississippi, 1 in MPEC 2007-V10 -- 3200

Impact Risk Monitoring  on 3 November '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2213 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.
0000NNN000

Object

Risk
Monitor
When
Noted
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Today's Latest Risk Assessments
2007 VGJPL Sentry14072010-2105615.2e-08-4.16-4.430JPL: "Analysis based on 33 observations spanning .99564 days (2007-Nov-01.20193 to 2007-Nov-02.19757)." Diameter approximately 0.230 km. from mean, weighted H=20.8.
NEODyS11282010-2090945.27e-08-4.14-4.430NEODyS: "Based on 33 optical observations (of which 0 are rejected as outliers) from 2007/11/01.203 to 2007/11/02.198."
2007 US51JPL Sentry19262082-210364.8e-06-6.51-6.830JPL: "Analysis based on 24 observations spanning 1.9915 days (2007-Oct-31.38411 to 2007-Nov-02.37565)." Diameter approximately 0.012 km. from mean, weighted H=27.2.
NEODyS14072062-208262.15e-06-6.80-6.860NEODyS: "Based on 24 optical observations (of which 0 are rejected as outliers) from 2007/10/31.385 to 2007/11/02.376."
2007 UR51JPL Sentry1926R E M O V E DJPL: Risk listing removed at 1420 UTC.
NEODyS1407R E M O V E D
2007 UN12NEODyS14072071-2090215.59e-05-6.50-7.170NEODyS: "Based on 81 optical observations (of which 0 are rejected as outliers) from 2007/10/21.373 to 2007/11/02.323."
JPL Sentry11282075-2107262.1e-04-6.00-6.860JPL: "Analysis based on 81 observations spanning 11.950 days (2007-Oct-21.37247 to 2007-Nov-02.32265)." Diameter approximately 0.006 km. from mean, weighted H=28.8.
2007 UD6NEODyS19262058-2090469.05e-05-5.98-6.520NEODyS: "Based on 47 optical observations (of which 0 are rejected as outliers) from 2007/10/20.296 to 2007/11/02.250."
JPL Sentry11282058-2095549.2e-05-5.97-6.560JPL: "Analysis based on 47 observations spanning 12.953 days (2007-Oct-20.29569 to 2007-Nov-02.24908)." Diameter approximately 0.007 km. from mean, weighted H=28.4.
2007 UY1JPL Sentry14072097-210021.7e-07-6.15-6.330JPL: "Analysis based on 55 observations spanning 16.063 days (2007-Oct-18.14415 to 2007-Nov-03.2073)." Diameter approximately 0.093 km. from mean, weighted H=22.8.
2007 TH72JPL Sentry1926R E M O V E DJPL: Risk listing removed at 1407 UTC.
NEODyS1128R 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 3 November '07

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

1926Noted that JPL Sentry has removed 2007 TH72 as an impact risk - see above
Noted that NEODyS has updated its 2007 UD6 risk assessment - see above
Noted that JPL Sentry has removed 2007 UR51 as an impact risk - see above
Noted that JPL Sentry has updated its 2007 US51 risk assessment - see above
Grabbed MPEC 2007-V11 - Comet P/2007 T2 (Kowalski) - see above
Grabbed MPEC 2007-V12 - Comet C/2007 T5 (Gibbs) - see above
1407Noted that NEODyS has updated its 2007 UN12 risk assessment - see above
Noted that NEODyS has removed 2007 UR51 as an impact risk - see above
Noted that NEODyS has updated its 2007 US51 risk assessment - see above
Noted that JPL Sentry has updated its 2007 UY1 risk assessment - see above
Noted that JPL Sentry has updated its 2007 VG risk assessment - see above
1128Noted that NEODyS has removed 2007 TH72 as an impact risk - see above
Noted that JPL Sentry has updated its 2007 UD6 risk assessment - see above
Noted that JPL Sentry has updated its 2007 UN12 risk assessment - see above
Noted that NEODyS has posted 2007 VG as an impact risk - see above
Grabbed MPEC 2007-V10 - Daily Orbit Update - see above