Comet 103P/Hartley 2 discovery image 
from March 1986, credit AAO/Siding Spring.

Today the EPOXI mission Deep Impact spacecraft is flying past comet 103P/Hartley 2, which is seen here in its March 1986 discovery image, digitized from the photographic plate on which it was found by Malcolm Hartley, as retold this week in a NASA/JPL news release. Credit: AAO/Siding Spring.


Contents  on 4 November '10

Resources:

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 4 November '10

The MPC's NEO Confirmation Page has 14 listings: 6 new, 7 updated, 1 comet

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had six new, seven updated, and one comet listings. Of these, ten were "one nighters." So far The Tracking News has counted a total of 32 listings on the NEOCP at some point today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

New MPECs  on 4 November '10

Minor Planet Electronic Circulars

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


MPEC 2010-V50 - "19:32 UT" - 2010 VO1


MPEC 2010-V49 - "19:28 UT" - 2010 VN1


MPEC 2010-V48 - "19:22 UT" - 2010 VM1


MPEC 2010-V47 - "17:55 UT" - Comet P/2004 F3 = 2010 V2 (NEAT)


MPEC 2010-V46 - "17:14 UT" - Comet C/2010 V1 (Ikeya-Murakami)


MPEC 2010-V45 - "16:30 UT" - 2010 VL1


MPEC 2010-V44 - "16:22 UT" - 2010 VJ1


MPEC 2010-V43 - "16:16 UT" - 2010 VH1


MPEC 2010-V42 - "16:12 UT" - 2010 VG1


MPEC 2010-V41 - "16:02 UT" - 2010 VF1


MPEC 2010-V40 - "15:58 UT" - 2010 VE1


MPEC 2010-V39 - "15:53 UT" - 2010 VD1


MPEC 2010-V38 - "15:48 UT" - 2010 VC1


MPEC 2010-V37 - "15:44 UT" - 2010 VB1


MPEC 2010-V36 - "15:38 UT" - 2010 VA1


<< DOU on 4 Nov. '10 >>  MPEC 2010-V35 - "06:10 UT" - Daily Orbit Update


MPEC 2010-V34 - "04:07 UT" - 2010 VZ

Observers  on 4 November '10

A total of 39 observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 12 in MPECs 2010-V34, 2010-V35, 2010-V36, 2010-V38, 2010-V39, 2010-V42, 2010-V44, 2010-V45, 2010-V48 & 2010-V49 -- 2010 VZ, 2010 VX, 2010 VQ, 2010 VN1, 2010 VM1, 2010 VL1, 2010 VJ1, 2010 VG1, 2010 VE, 2010 VD1, 2010 VC1, 2010 VA1
C34Baja Obs. in Hungary, 1 in MPEC 2010-V35 -- 2010 LO97
300Bisei Spaceguard Center in Japan, 4 in MPECs 2010-V35, 2010-V38, 2010-V41 & 2010-V45 -- 2010 VL1, 2010 VF1, 2010 VC1, 2010 UE51
B20Carmelita Obs. in Spain, 1 in MPEC 2010-V46 -- C/2010 V1
703Catalina Sky Survey (CSS) in Arizona, 14 in MPECs 2010-V35, 2010-V38, 2010-V45 & 2010-V50 -- 2010 VO1, 2010 VL1, 2010 VC1, 2010 UX6, 2010 UK8, 2010 UE7, 2010 TV149, 2010 TC55, 86324, 25916, 248083, 137199, 10115, 4055
J01Cielo Profundo Obs. in Spain, 1 in MPEC 2010-V46 -- C/2010 V1
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2010-V46 -- C/2010 V1
448Desert Moon Obs. in New Mexico, 6 in MPEC 2010-V35 -- 2010 US7, 2010 UO7, 2010 UH7, 2010 TY54, 2004 BE11, 10165
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 3 in MPEC 2010-V35 -- 2010 UX6, 2010 UQ7, 2010 TX168
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 2 in MPEC 2010-V35 -- 2010 SO16, 2010 SG13
114Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2010-V46 -- C/2010 V1
F65$Ernesto Guido in Italy via Faulkes Telescope North in Hawaii, 1 in MPEC 2010-V45 -- 2010 VL1
E10Faulkes Telescope South in New South Wales, 2 in MPECs 2010-V35 & 2010-V45 -- 2010 VL1, 2010 UE51
J28Jaen Obs. in Spain, 2 in MPEC 2010-V35 -- 243147, 5869
G92Jarnac Obs. in Arizona, 2 in MPEC 2010-V35 -- 234061, 153814
695^Spacewatch via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2010-V35 -- 2010 FZ80
704LINEAR in New Mexico, 19 in MPEC 2010-V35 -- 2010 VE, 2010 VB, 2010 UK8, 2010 UE51, 2010 TY54, 2010 TJ54, 2010 SD13, 2010 RA147, 2007 TD71, 2006 KV89, 251346, 243025, 241370, 237442, 17181, 143381, 138847, 5143, 2212
J75La Sagra Obs. in Spain, 1 in MPEC 2010-V49 -- 2010 VN1
H01Magdalena Ridge Obs. (MRO) in New Mexico, 19 in MPECs 2010-V34, 2010-V35, 2010-V36, 2010-V37, 2010-V38, 2010-V39, 2010-V40, 2010-V41, 2010-V42, 2010-V43, 2010-V44, 2010-V45, 2010-V46, 2010-V48, 2010-V49 & 2010-V50 -- 2010 VZ, 2010 VO1, 2010 VN1, 2010 VM1, 2010 VL1, 2010 VJ1, 2010 VH1, 2010 VG1, 2010 VF1, 2010 VE1, 2010 VD1, 2010 VC1, 2010 VB1, 2010 VA1, C/2010 V1, 2010 UT7, 2010 UR7, 2010 UE8, 2010 UC7
B67Mirasteilas Obs. in Switzerland, 3 in MPEC 2010-V35 -- 2010 RA147, 2007 VG189, 2004 KE1
900Moriyama Obs. in Japan, 1 in MPEC 2010-V49 -- 2010 VN1
G96Mt. Lemmon Survey (MLS) in Arizona, 11 in MPECs 2010-V34, 2010-V35, 2010-V36, 2010-V37, 2010-V39, 2010-V43 & 2010-V44 -- 2010 VZ, 2010 VJ1, 2010 VH1, 2010 VD1, 2010 VB1, 2010 VA1, 2010 UO7, 2010 SK15, 2005 MW1, 2003 QA31, 1997 US2
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2010-V35 -- 2010 TJ54
608NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2010-V35 -- 2010 TJ54
F51Pan-STARRS 1 (PS1) in Hawaii, 3 in MPECs 2010-V40, 2010-V41 & 2010-V48 -- 2010 VM1, 2010 VF1, 2010 VE1
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2010-V49 -- 2010 VN1
C20Pulkovo Obs. Kislovodsk Mtn. Station in Russia, 1 in MPEC 2010-V47 -- P/2010 V2
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-V46 -- C/2010 V1
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-V35 -- 2010 UE51
H36Sandlot Obs. in Kansas, 3 in MPECs 2010-V36, 2010-V45 & 2010-V47 -- 2010 VL1, 2010 VA1, P/2010 V2
B74Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2010-V46 -- C/2010 V1
204Schiaparelli Obs. in Italy, 4 in MPECs 2010-V36, 2010-V38, 2010-V39 & 2010-V46 -- 2010 VD1, 2010 VC1, 2010 VA1, C/2010 V1
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-V50 -- 2010 VO1
G68Sierra Stars Obs. in northern California, 1 in MPEC 2010-V35 -- 3838
691Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2010-V35 & 2010-V42 -- 2010 VG1, 2002 GM9
291Spacewatch 1.8m telescope in Arizona, 9 in MPECs 2010-V34, 2010-V35, 2010-V37, 2010-V39, 2010-V40, 2010-V41 & 2010-V48 -- 2010 VZ, 2010 VP, 2010 VM1, 2010 VF1, 2010 VE1, 2010 VD1, 2010 VB1, 2010 UR7, 2004 BV1
6735Jim Young via Table Mtn. Obs. in southern California, 3 in MPECs 2010-V36, 2010-V38 & 2010-V45 -- 2010 VL1, 2010 VC1, 2010 VA1
C51WISE in Earth polar orbit, 7 in MPEC 2010-V35 -- 2010 UY6, 96590, 243025, 23187, 111253, 10115, 3122
D89Yamagata Obs. in Japan, 1 in MPEC 2010-V46 -- C/2010 V1
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 4 November '10

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.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
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
2010 VN1JPL Sentry21202050-206079.0e-06-6.48-6.540JPL: "Analysis based on 20 observations spanning .73365 days (2010-Nov-04.00752 to 2010-Nov-04.74117)." Diameter approximately 0.008 km. from mean, weighted H=28.0.
2010 VM1JPL Sentry21202028-210639.2e-10-6.14-6.220JPL: "Analysis based on 13 observations spanning 1.8163 days (2010-Nov-02.43165 to 2010-Nov-04.247917)." Diameter approximately 0.346 km. from mean, weighted H=19.9.
2010 VH1JPL Sentry18062018-2107233.7e-08-4.89-5.000JPL: "Analysis based on 12 observations spanning .90969 days (2010-Nov-03.26049 to 2010-Nov-04.17018)." Diameter approximately 0.174 km. from mean, weighted H=21.4.
2010 VG1JPL Sentry18062013-2086268.3e-09-4.78-5.050JPL: "Analysis based on 12 observations spanning 1.0169 days (2010-Nov-03.08127 to 2010-Nov-04.09815)." Diameter approximately 0.310 km. from mean, weighted H=20.2.
2010 VE1JPL Sentry1806204911.2e-10-6.65-6.650JPL: "Analysis based on 15 observations spanning 1.7631 days (2010-Nov-02.43738 to 2010-Nov-04.20045)." Diameter approximately 0.710 km. from mean, weighted H=18.4.
2010 VB1JPL Sentry18412028-21102663.7e-05-3.68-3.970JPL: "Analysis based on 21 observations spanning 1.9348 days (2010-Nov-02.27134 to 2010-Nov-04.20617)." Diameter approximately 0.076 km. from mean, weighted H=23.2.
2010 VZNEODyS16102078-207816.5e-09-5.62-5.620NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2010-11-02.075 to 2010-11-04.095."
JPL Sentry06162078-2106112.3e-08-5.03-5.520JPL: "Analysis based on 22 observations spanning 2.0199 days (2010-Nov-02.07441 to 2010-Nov-04.0943)." Diameter approximately 0.490 km. from mean, weighted H=19.2.
2010 VQNEODyS16112034-2089461.07e-04-5.21-5.360NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2010-11-01.342 to 2010-11-03.238."
JPL Sentry16102034-2105441.2e-04-5.19-5.360JPL: "Analysis based on 17 observations spanning 1.8959 days (2010-Nov-01.34102 to 2010-Nov-03.236904)." Diameter approximately 0.010 km. from mean, weighted H=27.6.
2010 VPJPL Sentry1610203414.3e-09-6.90-6.900JPL: "Analysis based on 9 observations spanning 2.0935 days (2010-Nov-01.28961 to 2010-Nov-03.38314)." Diameter approximately 0.079 km. from mean, weighted H=23.2.
NEODyS16102026-207651.52e-08-6.23-6.440NEODyS: "Based on 9 optical observations (of which 0 are rejected as outliers) from 2010-11-01.290 to 2010-11-03.384."
2010 UE51JPL Sentry1610R E M O V E DJPL: Risk listing removed at 0959 UTC.
2010 UE8JPL Sentry1610R E M O V E DJPL: Risk listing removed at 1030 UTC.
2010 UT7JPL Sentry16102049-2110366.0e-08-4.41-4.760JPL: "Analysis based on 28 observations spanning 5.0238 days (2010-Oct-29.47815 to 2010-Nov-03.50191)." Diameter approximately 0.450 km. from mean, weighted H=19.4.
NEODyS16102059-2085148.94e-10-6.13-6.850NEODyS: "Based on 28 optical observations (of which 0 are rejected as outliers) from 2010-10-29.479 to 2010-11-03.503."
2010 UR7NEODyS16102079-208642.33e-06-6.87-7.20NEODyS: "Based on 38 optical observations (of which 0 are rejected as outliers) from 2010-10-30.164 to 2010-11-03.484."
2010 UC7JPL Sentry1610R E M O V E DJPL: Risk listing removed at 0952 UTC.
2010 UX6JPL Sentry1610207912.2e-07-5.91-5.910JPL: "Analysis based on 99 observations spanning 6.3781 days (2010-Oct-27.77604 to 2010-Nov-03.15412)." Diameter approximately 0.084 km. from mean, weighted H=23.0.
NEODyS16102079-207912.3e-07-5.89-5.890NEODyS: "Based on 99 optical observations (of which 0 are rejected as outliers) from 2010-10-27.777 to 2010-11-03.155."

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 4 November '10

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

2120Noted that JPL Sentry has posted 2010 VM1 as an impact risk - see above
Noted that JPL Sentry has posted 2010 VN1 as an impact risk - see above
2014Grabbed MPEC 2010-V50 - 2010 VO1 - see above
1932Grabbed MPEC 2010-V48 - 2010 VM1 - see above
Grabbed MPEC 2010-V49 - 2010 VN1 - see above
1841Noted that JPL Sentry has posted 2010 VB1 as an impact risk - see above
Grabbed MPEC 2010-V47 - Comet P/2004 F3 = 2010 V2 (NEAT) - see above
1806Noted that JPL Sentry has posted 2010 VE1 as an impact risk - see above
Noted that JPL Sentry has posted 2010 VG1 as an impact risk - see above
Noted that JPL Sentry has posted 2010 VH1 as an impact risk - see above
1740Grabbed MPEC 2010-V46 - Comet C/2010 V1 (Ikeya-Murakami) - see above
1701Grabbed MPEC 2010-V42 - 2010 VG1 - see above
Grabbed MPEC 2010-V43 - 2010 VH1 - see above
Grabbed MPEC 2010-V44 - 2010 VJ1 - see above
Grabbed MPEC 2010-V45 - 2010 VL1 - see above
1610Noted that JPL Sentry has removed 2010 UC7 as an impact risk - see above
Noted that JPL Sentry has removed 2010 UE51 as an impact risk - see above
Noted that JPL Sentry has removed 2010 UE8 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 UT7 risk assessment - see above
Noted that JPL Sentry has updated its 2010 UX6 risk assessment - see above
Noted that JPL Sentry has updated its 2010 VP risk assessment - see above
Noted that JPL Sentry has updated its 2010 VQ risk assessment - see above
Grabbed MPEC 2010-V35 - Daily Orbit Update - see above
Grabbed MPEC 2010-V36 - 2010 VA1 - see above
Grabbed MPEC 2010-V37 - 2010 VB1 - see above
Grabbed MPEC 2010-V38 - 2010 VC1 - see above
Grabbed MPEC 2010-V39 - 2010 VD1 - see above
Grabbed MPEC 2010-V40 - 2010 VE1 - see above
Grabbed MPEC 2010-V41 - 2010 VF1 - see above
Noted that NEODyS has posted 2010 VZ as an impact risk - see above
Noted that NEODyS has updated its 2010 UR7 risk assessment - see above
Noted that NEODyS has updated its 2010 UT7 risk assessment - see above
Noted that NEODyS has updated its 2010 UX6 risk assessment - see above
Noted that NEODyS has updated its 2010 VP risk assessment - see above
Noted that NEODyS has updated its 2010 VQ risk assessment - see above
0616Noted that JPL Sentry has posted 2010 VZ as an impact risk - see above
0500Grabbed MPEC 2010-V34 - 2010 VZ - see above