Contents  on 9 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 9 November '07

The MPC's NEO Confirmation Page has 14 listings: 2 new, 12 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two new and twelve updated listings. Of these, ten were "one nighters." So far The Tracking News has counted a total of seventeen 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 9 November '07

Minor Planet Electronic Circulars

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


MPEC 2007-V73 - "18:56 UT" - 2007 VA85


MPEC 2007-V72 - "16:16 UT" - Comet P/2007 V1 (Larson)


<< DOU on 9 Nov. '07 >>  MPEC 2007-V71 - "07:12 UT" - Daily Orbit Update


MPEC 2007-V70 - "00:56 UT" - Editorial Notice

Observers  on 9 November '07

A total of 24 observing facilities appear in today's MPECs.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 2 in MPECs 2007-V71 & 2007-V73 -- 2007 VV7, 2007 VA85
235CAST Obs. in Italy, 1 in MPEC 2007-V73 -- 2007 VA85
703Catalina Sky Survey (CSS) in Arizona, 3 in MPECs 2007-V71, 2007-V72 & 2007-V73 -- 2007 VA85, P/2007 V1, 99907
B11Cima Rest Obs. in Italy, 2 in MPEC 2007-V71 -- 2007 SE11, 2007 RD20
734Farpoint Obs. in Kansas, 1 in MPEC 2007-V72 -- P/2007 V1
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2007-V73 -- 2007 VA85
J95Great Shefford Obs. in England, 2 in MPECs 2007-V72 & 2007-V73 -- 2007 VA85, P/2007 V1
B15Inastars Obs. in Germany, 1 in MPEC 2007-V73 -- 2007 VA85
704LINEAR in New Mexico, 14 in MPECs 2007-V71, 2007-V72 & 2007-V73 -- 2007 VZ30, 2007 VV83, 2007 VM84, 2007 VA85, P/2007 V1, 2007 TY18, 2007 TX18, 1989 DA, 99907, 85628, 31346, 138971, 138947, 3200
699LONEOS in Arizona, 1 in MPEC 2007-V72 -- P/2007 V1
J87La Canada Obs. in Spain, 1 in MPEC 2007-V72 -- P/2007 V1
130Lumezzane Obs. in Italy, 6 in MPEC 2007-V71 -- 2007 SE11, 2007 RU17, 2004 RD252, 162215, 138893, 4954
711McDonald Obs. in Texas, 13 in MPECs 2007-V71, 2007-V72 & 2007-V73 -- 2007 VH8, 2007 VD12, 2007 VA85, P/2007 V1, 2007 UA2, 2007 TR65, 2007 TG8, 2007 SV2, 2007 RF5, 2007 OV, 2003 YS117, 90403, 30997
474Mt. John Obs. in New Zealand, 5 in MPEC 2007-V71 -- 2007 VW7, 2007 VK8, 2007 TJ19, 2005 XH8, 2001 WK15
G96Mt. Lemmon Survey (MLS) in Arizona, 3 in MPECs 2007-V71 & 2007-V72 -- P/2007 V1, 2007 RU12, 2004 WS2
A24New Millennium Obs. in Italy, 3 in MPEC 2007-V71 -- 2007 US6, 143678, 3553
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 16 in MPEC 2007-V71 -- 2007 VQ4, 2007 VD3, 2007 VD12, 2007 UX1, 2007 UL12, 2007 UB6, 2007 TZ18, 2007 TV68, 2007 SP6, 2007 SE11, 2007 RU12, 2007 PU11, 2007 GS3, 2004 TY16, 21374, 162004
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2007-V72 -- P/2007 V1
473Remanzacco Obs. in Italy, 1 in MPEC 2007-V73 -- 2007 VA85
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2007-V71 -- 21277, 138883
691Spacewatch 0.9m telescope in Arizona, 7 in MPEC 2007-V71 -- 2007 VZ30, 2007 VZ30, 2001 HW15, 2000 XK44, 54401, 164184, 162273
291Spacewatch 1.8m telescope in Arizona, 7 in MPEC 2007-V71 -- 2007 VJ3, 2007 VG, 2007 VE8, 2007 VD12, 2007 VC3, 2007 UN12, 2007 TW68
6735Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2007-V73 -- 2007 VA85
A48Verona Obs. in Italy, 2 in MPEC 2007-V71 -- 2007 VK3, 2007 SE11

Impact Risk Monitoring  on 9 November '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 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 VA85JPL Sentry23542048-2107165.7e-09-2.67-3.440JPL: "Analysis based on 54 observations spanning 4.9688 days (2007-Nov-04.08915 to 2007-Nov-09.05791)." Diameter approximately 3.300 km. from mean, weighted H=15.0.
2007 VO84NEODyS13002022-207147.94e-10-9.01-9.230NEODyS: "Based on 15 optical observations (of which 1 are rejected as outliers) from 2007/11/08.313 to 2007/11/08.470."
2007 VD12NEODyS2003R E M O V E D
JPL Sentry1214R E M O V E DJPL: Risk listing removed at 1136 UTC.
2007 VE8NEODyS2004206212.16e-05-4.99-4.990NEODyS: "Based on 22 optical observations (of which 1 are rejected as outliers) from 2007/11/05.340 to 2007/11/08.442."
JPL Sentry1300206212.3e-05-4.96-4.960JPL: "Analysis based on 21 observations spanning 3.1025 days (2007-Nov-05.3392 to 2007-Nov-08.44173)." Diameter approximately 0.028 km. from mean, weighted H=25.4.
2007 VJ3JPL Sentry1422209919.7e-09-8.09-8.090JPL: "Analysis based on 34 observations spanning 5.8736 days (2007-Nov-02.5055 to 2007-Nov-08.37909)." Diameter approximately 0.036 km. from mean, weighted H=24.9.
2007 VGJPL Sentry1345208124.6e-07-4.05-4.100JPL: "Analysis based on 55 observations spanning 8.0564 days (2007-Nov-01.20193 to 2007-Nov-09.25828)." Diameter approximately 0.220 km. from mean, weighted H=21.0.
NEODyS12152044-208174.74e-07-4.04-4.090NEODyS: "Based on 55 optical observations (of which 0 are rejected as outliers) from 2007/11/01.203 to 2007/11/09.259."
2007 UN12NEODyS20042069-2090226.61e-05-6.40-7.130NEODyS: "Based on 115 optical observations (of which 0 are rejected as outliers) from 2007/10/21.373 to 2007/11/08.209."
JPL Sentry12142075-2107282.2e-04-5.96-6.740JPL: "Analysis based on 115 observations spanning 17.836 days (2007-Oct-21.37247 to 2007-Nov-08.20844)." Diameter approximately 0.006 km. from mean, weighted H=28.7.

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 9 November '07

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

2354Noted that JPL Sentry has posted 2007 VA85 as an impact risk - see above
2004Noted that NEODyS has updated its 2007 UN12 risk assessment - see above
Noted that NEODyS has updated its 2007 VE8 risk assessment - see above
2003Noted that NEODyS has removed 2007 VD12 as an impact risk - see above
Grabbed MPEC 2007-V72 - Comet P/2007 V1 (Larson) - see above
Grabbed MPEC 2007-V73 - 2007 VA85 - see above
1422Noted that JPL Sentry has updated its 2007 VJ3 risk assessment - see above
1345Noted that JPL Sentry has updated its 2007 VG risk assessment - see above
1300Noted that JPL Sentry has updated its 2007 VE8 risk assessment - see above
Noted that NEODyS has posted 2007 VO84 as an impact risk - see above
1215Noted that NEODyS has updated its 2007 VG risk assessment - see above
Grabbed MPEC 2007-V71 - Daily Orbit Update - see above
1214Noted that JPL Sentry has updated its 2007 UN12 risk assessment - see above
Noted that JPL Sentry has removed 2007 VD12 as an impact risk - see above
0129Grabbed MPEC 2007-V70 - Editorial Notice - see above