5535 Annefranke from Stardust on 2 Nov. 2002. 
Credit: NASA/JPL with A/CC processing.

On this day five years ago the Stardust spacecraft made a distant flyby of asteroid 5535 Annefrank, seen here in the two closest images which were made six seconds apart and serve as a good stereo pair. Relax your eyes and let them find focus behind the screen to bring the two dots and two images together into one. Credit: NASA/JPL with A/CC processing of unpublished imagery found archived in the NASA Planetary Data System.


Contents  on 2 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 2 November '07

The MPC's NEO Confirmation Page has 27 listings: 17 new, 10 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had seventeen new and ten updated listings. Of these, 24 were "one nighters." So far The Tracking News has counted a total of 32 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 '07

Minor Planet Electronic Circulars

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


MPEC 2007-V09 - "17:56 UT" - 1999 UQ


MPEC 2007-V08 - "17:53 UT" - 2007 VG


MPEC 2007-V07 - "17:50 UT" - 2007 UT65


MPEC 2007-V06 - "17:46 UT" - 2007 US65


<< DOU on 2 Nov. '07 >>  MPEC 2007-V05 - "06:11 UT" - Daily Orbit Update

Observers  on 2 November '07

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

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 10 in MPECs 2007-V05, 2007-V06 & 2007-V09 -- 2007 US65, 2007 UR51, 2007 TS68, 2007 TO74, 2007 TA25, 2007 RX19, 2007 RE1, 2007 RD1, 2007 LQ19, 1999 UQ
J51Atlante Obs. in the Canary Islands, 1 in MPEC 2007-V05 -- 1036
703Catalina Sky Survey in Arizona, 1 in MPEC 2007-V05 -- 2007 TG15
639Dresden Obs. in Germany, 1 in MPEC 2007-V05 -- 2007 PU11
151Eschenberg Obs. in Switzerland, 3 in MPEC 2007-V05 -- 2007 US6, 2007 UK40, 2007 TB23
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2007-V08 -- 2007 VG
203GiaGa Obs. in Italy, 2 in MPEC 2007-V05 -- 2007 US6, 2007 UK40
651Grasslands Obs. in Arizona, 1 in MPEC 2007-V08 -- 2007 VG
J95Great Shefford Obs. in England, 5 in MPECs 2007-V05, 2007-V06, 2007-V07, 2007-V08 & 2007-V09 -- 2007 VG, 2007 UT65, 2007 US65, 2007 US51, 1999 UQ
F84Hibiscus Obs. in Tahiti, 1 in MPEC 2007-V05 -- 2007 TE66
246KLENOT in the Czech Republic, 7 in MPECs 2007-V05, 2007-V06, 2007-V08 & 2007-V09 -- 2007 VG, 2007 US65, 2007 US12, 2007 UK40, 2007 UC2, 2007 RU17, 1999 UQ
704LINEAR in New Mexico, 4 in MPEC 2007-V05 -- 2007 US6, 18736, 2212, 433
699LONEOS in Arizona, 3 in MPECs 2007-V05 & 2007-V09 -- 2007 RT147, 2001 UY16, 1999 UQ
J46Montana Blanca Obs. in the Canary Islands, 1 in MPEC 2007-V05 -- 8566
213Montcabre Obs. in Spain, 1 in MPEC 2007-V08 -- 2007 VG
G96Mt. Lemmon Survey (MLS) in Arizona, 8 in MPECs 2007-V05, 2007-V06, 2007-V07 & 2007-V08 -- 2007 VG, 2007 UT65, 2007 US65, 2007 US12, 2007 UA2, 2007 TB23, 1997 GH28, 2212
A13Naef Obs. in Switzerland, 2 in MPEC 2007-V05 -- 162273, 153591
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 2 in MPEC 2007-V05 -- 2007 TG15, 2007 PU11
691Spacewatch 0.9m telescope in Arizona, 6 in MPEC 2007-V05 -- 2007 UA2, 2007 SS1, 2007 RR17, 1997 ET30, 164120, 162273
291Spacewatch 1.8m telescope in Arizona, 14 in MPECs 2007-V05 & 2007-V06 -- 2007 UY1, 2007 US65, 2007 UR3, 2007 UR, 2007 UN12, 2007 UH, 2007 TU24, 2007 TQ24, 2007 TK15, 2007 TH19, 2007 MT20, 2006 US216, 2006 SQ78, 2005 UB
6735Jim Young via Table Mtn. Obs. in southern California, 4 in MPECs 2007-V05, 2007-V08 & 2007-V09 -- 2007 VG, 2007 UL12, 2007 UK40, 1999 UQ

Impact Risk Monitoring  on 2 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 VGJPL Sentry23542010-2105604.3e-08-4.18-4.480JPL: "Analysis based on 30 observations spanning .99564 days (2007-Nov-01.20193 to 2007-Nov-02.19757)." Diameter approximately 0.240 km. from mean, weighted H=20.7.
2007 US51JPL Sentry14122082-210354.6e-06-6.53-6.850JPL: "Analysis based on 21 observations spanning 1.0238 days (2007-Oct-31.38411 to 2007-Nov-01.40792)." Diameter approximately 0.012 km. from mean, weighted H=27.2.
NEODyS13092079-208241.99e-06-6.84-6.890NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2007/10/31.385 to 2007/11/01.409."
2007 UR51JPL Sentry13092070-2106171.0e-08-6.07-6.600JPL: "Analysis based on 21 observations spanning 1.0361 days (2007-Oct-31.19738 to 2007-Nov-01.23351)." Diameter approximately 0.185 km. from mean, weighted H=21.3.
NEODyS13092076-208831.07e-09-6.97-7.120NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2007/10/31.198 to 2007/11/01.234."
2007 UN12NEODyS16072069-2090256.31e-05-6.42-7.170NEODyS: "Based on 78 optical observations (of which 0 are rejected as outliers) from 2007/10/21.373 to 2007/11/01.277."
JPL Sentry13092075-2107262.1e-04-5.98-6.860JPL: "Analysis based on 78 observations spanning 10.904 days (2007-Oct-21.37247 to 2007-Nov-01.27627)." Diameter approximately 0.006 km. from mean, weighted H=28.8.
2007 UL12JPL Sentry1309R E M O V E DJPL: Risk listing removed at 1012 UTC.
2007 UY1JPL Sentry13092097-210021.3e-07-6.28-6.490JPL: "Analysis based on 49 observations spanning 14.985 days (2007-Oct-18.14415 to 2007-Nov-02.12913)." Diameter approximately 0.093 km. from mean, weighted H=22.8.
2007 TU24JPL Sentry14122098-210423.4e-07-4.51-4.510JPL: "Analysis based on 74 observations spanning 21.886 days (2007-Oct-11.26838 to 2007-Nov-02.15405)." Diameter approximately 0.320 km. from mean, weighted H=20.1.

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 '07

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

2354Noted that JPL Sentry has posted 2007 VG as an impact risk - see above
1807Grabbed MPEC 2007-V08 - 2007 VG - see above
1806Grabbed MPEC 2007-V06 - 2007 US65 - see above
Grabbed MPEC 2007-V07 - 2007 UT65 - see above
Grabbed MPEC 2007-V09 - 1999 UQ - see above
1607Noted that NEODyS has updated its 2007 UN12 risk assessment - see above
1412Noted that JPL Sentry has updated its 2007 TU24 risk assessment - see above
Noted that JPL Sentry has updated its 2007 US51 risk assessment - see above
1309Noted that JPL Sentry has removed 2007 UL12 as an impact risk - see above
Noted that JPL Sentry has updated its 2007 UN12 risk assessment - see above
Noted that JPL Sentry has updated its 2007 UR51 risk assessment - see above
Noted that NEODyS has posted 2007 UR51 as an impact risk - see above
Noted that NEODyS has posted 2007 US51 as an impact risk - see above
Noted that JPL Sentry has updated its 2007 UY1 risk assessment - see above
Grabbed MPEC 2007-V05 - Daily Orbit Update - see above