Contents  on 8 November '07

Resources:

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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 8 November '07

The MPC's NEO Confirmation Page has 3 listings: 3 updated

When last checked at 2355 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had three updated listings. Of these, one was a "one nighter." The Tracking News counted a total of thirteen objects listed on the NEOCP at some point on this day.

New MPECs  on 8 November '07

Minor Planet Electronic Circulars

There were nine MPECs issued this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2007-V69 - "23:40 UT" - 2007 VN84


MPEC 2007-V68 - "20:13 UT" - 2007 VO84


MPEC 2007-V67 - "17:31 UT" - 2007 VM84


MPEC 2007-V66 - "14:08 UT" - 2007 VX83


MPEC 2007-V65 - "14:05 UT" - 2007 VW83


MPEC 2007-V64 - "14:01 UT" - 2007 VV83


MPEC 2007-V63 - "13:54 UT" - 2007 VU83


MPEC 2007-V62 - "13:49 UT" - 2007 VT83


<< DOU on 8 Nov. '07 >>  MPEC 2007-V61 - "07:13 UT" - Daily Orbit Update

Observers  on 8 November '07

Seventeen observing facilities appeared in this day's MPECs.

CodeObserver / observatory
H55Astronomical Research Obs. (ARO) in Illinois, 9 in MPEC 2007-V61 -- 2007 VX7, 2007 VJ8, 2007 VG, 2007 VF8, 2007 VE3, 2007 VD12, 2007 UR51, 2007 RW17, 2007 RU10
B09Capannoli Obs. in Italy, 3 in MPEC 2007-V61 -- 2007 US6, 2007 TG15, 143678
703Catalina Sky Survey (CSS) in Arizona, 17 in MPECs 2007-V61, 2007-V63 & 2007-V69 -- 2007 VU83, 2007 VT6, 2007 VN84, 2007 VD3, 2007 UW3, 2007 US12, 2007 PU11, 2007 DL41, 2006 RJ1, 2004 XJ35, 1999 RH33, 21374, 145656, 4503, 4486, 3671, 1620
J95Great Shefford Obs. in England, 1 in MPEC 2007-V69 -- 2007 VN84
379Hamamatsu-Yuto Obs. in Japan, 3 in MPEC 2007-V61 -- 2007 SE11, 2007 PU11, 2002 RC118
F84Hibiscus Obs. in Tahiti, 1 in MPEC 2007-V61 -- 2007 VG3
246KLENOT in the Czech Republic, 1 in MPEC 2007-V61 -- 2212
704LINEAR in New Mexico, 13 in MPECs 2007-V61, 2007-V64, 2007-V65 & 2007-V67 -- 2007 VW83, 2007 VV83, 2007 VT6, 2007 VR29, 2007 VQ4, 2007 VM84, 2007 UR, 1997 ET30, 18736, 138971, 136617, 11500, 1580
711McDonald Obs. in Texas, 8 in MPECs 2007-V61 & 2007-V65 -- 2007 VW83, 2007 VQ4, 2007 UY1, 2007 UX1, 2007 UR51, 2007 SJ, 2007 LQ19, 2001 FZ6
474Mt. John Obs. in New Zealand, 1 in MPEC 2007-V63 -- 2007 VU83
G96Mt. Lemmon Survey (MLS) in Arizona, 14 in MPECs 2007-V61, 2007-V62, 2007-V63, 2007-V64, 2007-V66, 2007-V67, 2007-V68 & 2007-V69 -- 2007 VX83, 2007 VV83, 2007 VU83, 2007 VT83, 2007 VO84, 2007 VN84, 2007 VM84, 2007 VH8, 2007 VA3, 2007 US6, 52768, 26166, 9172, 3552
A24New Millennium Obs. in Italy, 4 in MPEC 2007-V61 -- 2007 LR32, 99907, 3553, 2212
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 12 in MPEC 2007-V61 -- 2007 UX1, 2007 US6, 2007 UL12, 2007 TX18, 2007 TG15, 2007 TB23, 2007 SE11, 2007 RD20, 2007 PU11, 99907, 20826, 162004
D21Shenton Park Obs. in Western Australia, 2 in MPEC 2007-V61 -- 2007 VF8, 1990 UO
691Spacewatch 0.9m telescope in Arizona, 16 in MPEC 2007-V61 -- 2007 UT65, 2007 TK8, 2007 RR17, 2003 KW16, 2003 AK18, 2002 JM97, 1997 ET30, 1991 JW, 54401, 163051, 162004, 143651, 141079, 136617, 8034, 6489
291Spacewatch 1.8m telescope in Arizona, 8 in MPECs 2007-V61, 2007-V62, 2007-V66 & 2007-V68 -- 2007 VX83, 2007 VT83, 2007 VO84, 2007 VJ8, 2007 VH3, 2007 VC3, 2007 UN12, 2003 QZ29
6735Jim Young via Table Mtn. Obs. in southern California, 3 in MPECs 2007-V63, 2007-V64 & 2007-V65 -- 2007 VW83, 2007 VV83, 2007 VU83

Impact Risk Monitoring  on 8 November '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2355 and JPL at 2359 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 VO84JPL Sentry23592020-207661.3e-09-8.72-8.990JPL: "Analysis based on 15 observations spanning .15650 days (2007-Nov-08.3127 to 2007-Nov-08.4692)." Diameter approximately 0.030 km. from mean, weighted H=25.3.
2007 VD12NEODyS23122014-2089744.28e-07-3.69-4.510NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2007/11/05.380 to 2007/11/07.413."
JPL Sentry20512020-21071313.7e-07-3.92-4.590JPL: "Analysis based on 22 observations spanning 2.0326 days (2007-Nov-05.37916 to 2007-Nov-07.41176)." Diameter approximately 0.311 km. from mean, weighted H=20.2.
2007 VJ8JPL Sentry2051R E M O V E DJPL: Risk listing removed at 1609 UTC.
2007 VC3JPL Sentry1521R E M O V E DJPL: Risk listing removed at 1450 UTC.
2007 VGJPL Sentry13392044-209881.8e-07-4.42-4.510JPL: "Analysis based on 49 observations spanning 5.9395 days (2007-Nov-01.20193 to 2007-Nov-07.141421)." Diameter approximately 0.220 km. from mean, weighted H=20.9.
NEODyS11232044-208491.84e-07-4.41-4.510NEODyS: "Based on 49 optical observations (of which 0 are rejected as outliers) from 2007/11/01.203 to 2007/11/07.142."
2007 UN12JPL Sentry12372075-2107212.2e-04-5.95-6.750JPL: "Analysis based on 110 observations spanning 17.016 days (2007-Oct-21.37247 to 2007-Nov-07.38854)." Diameter approximately 0.006 km. from mean, weighted H=28.7.
NEODyS12372069-2090256.22e-05-6.42-7.150NEODyS: "Based on 110 optical observations (of which 0 are rejected as outliers) from 2007/10/21.373 to 2007/11/07.389."

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 8 November '07

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

2359Noted that JPL Sentry has posted 2007 VO84 as an impact risk - see above
2355Grabbed MPEC 2007-V69 - 2007 VN84 - see above
2312Noted that NEODyS has posted 2007 VD12 as an impact risk - see above
2051Noted that JPL Sentry has updated its 2007 VD12 risk assessment - see above
Noted that JPL Sentry has removed 2007 VJ8 as an impact risk - see above
Grabbed MPEC 2007-V67 - 2007 VM84 - see above
Grabbed MPEC 2007-V68 - 2007 VO84 - see above
1521Noted that JPL Sentry has removed 2007 VC3 as an impact risk - see above
Grabbed MPEC 2007-V62 - 2007 VT83 - see above
Grabbed MPEC 2007-V63 - 2007 VU83 - see above
Grabbed MPEC 2007-V64 - 2007 VV83 - see above
Grabbed MPEC 2007-V65 - 2007 VW83 - see above
Grabbed MPEC 2007-V66 - 2007 VX83 - see above
1339Noted that JPL Sentry has updated its 2007 VG risk assessment - see above
1237Noted that JPL Sentry has updated its 2007 UN12 risk assessment - see above
Noted that NEODyS has updated its 2007 UN12 risk assessment - see above
1123Noted that NEODyS has updated its 2007 VG risk assessment - see above
Grabbed MPEC 2007-V61 - Daily Orbit Update - see above