7 Nov '07 Tracking News

Contents on 7 November '07

IAU Minor Planet Center
- NEOCP Activity -- five listings: 5 updated
- New MPECs -- three MPECs
- Observers -- 22 observing facilities
Impact Risk Monitoring -- eleven objects reported
Chronology

Resources:

Consolidated Risk Tables - CRT page
Old & new CRT Archive
Ephemerides for risk-rated objects
Old News Archive & Small Objects Archive
Note: Due to travel, this Web site and its news pages will update less frequently and at sometimes irregular intervals during early November.

The latest news: framed access (best), 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 7 November '07

The MPC's NEO Confirmation Page has 5 listings: 5 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had five updated listings. Of these, four were "one nighters." So far The Tracking News has counted a total of ten 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 7 November '07

Minor Planet Electronic Circulars

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

MPEC 2007-V58 time-stamped "07:12 UT" - Daily Orbit Update - see below
MPEC 2007-V59 time-stamped "14:52 UT" - 2007 VD12 - see below
MPEC 2007-V60 time-stamped "22:06 UT" - 2007 VR29

MPEC 2007-V60 - "22:06 UT" - 2007 VR29

K07V29R 2007 VR29 (small asteroid, H=24.5 ~43m) was discovered at 0440 UT on 6 Nov. by LINEAR, which observed it at Nov. 6.20-24p4. The discovery was confirmed by Astronomical Research Obs. (ARO) (Nov. 7.21-22p3) and Farpoint Obs. (Nov. 7.25-26p4).

MPEC 2007-V59 - "14:52 UT" - 2007 VD12

K07V12D 2007 VD12 (risk-listed, Earth MOID=3.8 LD, H=20.0 ~339m) was discovered at 0905 UT on 5 Nov. by the Catalina Sky Survey (CSS), which observed it at Nov. 5.38-40p4, 5.47-49p4, and 7.38-40p4. The discovery was confirmed by McDonald Obs. (Nov. 7.37-38p3) and Cordell-Lorenz Obs. (Nov. 7.37-41p4). This object will be coming within ten lunar distances (LD) of Earth, reaching 5.9 LD on 25 Nov.

<< DOU on 7 Nov. '07 >> MPEC 2007-V58 - "07:12 UT" - Daily Orbit Update

Observations of risk-listed objects
K07V08J 2007 VJ8 (small asteroid, Q=4.524 AU, arc=1 day, H=24.9 ~35m) from Great Shefford Obs. (Nov. 5.99p1 & 6.05p1)
K07V08E 2007 VE8 (small asteroid, arc=2 days, H=25.4 ~28m) from Naef Obs. (Nov. 6.88-91p5)
K07V07V 2007 VV7 (small asteroid, arc=2 days, H=26.7 ~15m) from the Spacewatch 1.8m telescope (Nov. 6.39p2)
K07V03J 2007 VJ3 (small asteroid, arc=4 days, H=24.9 ~35m) from Spacewatch 1.8m (Nov. 6.42-43p2)
K07V03H 2007 VH3 (small asteroid, arc=4 days, H=22.2 ~123m) from Spacewatch 1.8m (Nov. 6.43-44p3)
K07V03C 2007 VC3 (small asteroid, arc=4 days, H=24.8 ~37m) from Spacewatch 1.8m (Nov. 6.30p2)
K07V03A 2007 VA3 (small asteroid, arc=4 days, H=25.9 ~22m) from Spacewatch 1.8m (Nov. 6.29p3)
K07U51S 2007 US51 from the Spacewatch 0.9m telescope (Nov. 4.27-31p3)
K07U12N 2007 UN12 (small asteroid, arc=16 days, H=28.7 ~6m) from Spacewatch 1.8m (Nov. 6.36-37p3)
K07U01Y 2007 UY1 (small asteroid, arc=20 days, H=22.8 ~93m) from Spacewatch 1.8m (Nov. 7.20p3)
Observations of recently (no longer) risk-listed objects
K07U12L 2007 UL12 (q=0.385 AU, arc=12 days, H=20.7 ~245m) from Petit Jean Mtn. South Obs. (PJMSO) (Nov. 6.43-44p7), Shenton Park Obs. (Nov. 6.72-73p3), and Inastars Obs. (Nov. 6.96p4)
K07T71D 2007 TD71 (i=49.8°, arc=22 days, H=18.4 ~708m) from the Siding Spring Survey (SSS) (Nov. 4.54p1)
K07T23B 2007 TB23 (i=38.3°, arc=27 days, H=18.7 ~616m) from LINEAR (Nov. 6.25-30p4)
K07T18X 2007 TX18 (arc=28 days, H=17.3 ~1.17 km) from PJMSO (Nov. 6.40p5)
Observations of small asteroids (H>22.0)
K07V08F 2007 VF8 (arc=1 day, H=22.6 ~102m) from Shenton Park Obs. (Nov. 6.64p3)
K07V06V 2007 VV6 (arc=4 days, H=24.6 ~41m) from Trieste Obs. (Nov. 6.91-93p4)
K07T68V 2007 TV68 (Q=4.090 AU, arc=25 days, H=22.9 ~89m) from Spacewatch 0.9m (Nov. 3.25-27p2) and Naef Obs. (Nov. 6.88-91p3)
K07S11G 2007 SG11 (arc=20 days, H=22.6 ~102m) from Bornheim Obs. (Oct. 5.79-80p2)
Observations of almost-small asteroids (21.7<H<=22.0)
K07V03D 2007 VD3 (arc=4 days, H=22.0 ~135m) from Shenton Park Obs. (Nov. 6.62-63p2)
Observations of other objects
K07V08L 2007 VL8 (arc=1 day, H=21.3 ~186m) from Shenton Park Obs. (Nov. 6.67-68p2)
K07V07X 2007 VX7 (arc=3 days, H=19.4 ~446m) from Inastars Obs. (Nov. 6.88-89p4)
K07U06S 2007 US6 (arc=23 days, H=18.3 ~741m) from New Millennium Obs. (Nov. 2.02-05p5) and LINEAR (Nov. 6.25-30p5)
K07U03W 2007 UW3 (arc=18 days, H=19.5 ~426m) from PJMSO (Nov. 6.44-45p6)
K07U03R 2007 UR3 (arc=28 days, H=21.3 ~186m) from Spacewatch 1.8m (Nov. 6.28p3)
K07T19S 2007 TS19 (arc=15 days, H=20.7 ~245m) from Bornheim Obs. (Oct. 16.87p4 & 22.78-79p4)
K07T19A 2007 TA19 (arc=26 days, H=19.6 ~407m) from SSS (Nov. 4.46p1)
K07T15K 2007 TK15 (arc=29 days, H=21.2 ~195m) from Spacewatch 1.8m (Nov. 6.34-35p3)
K07S11E 2007 SE11 (i=48.3°, arc=47 days, H=17.7 ~977m) from PJMSO (Nov. 6.38p7)
K07R20D 2007 RD20 (arc=53 days, H=20.9 ~224m) from PJMSO (Nov. 6.42-43p5)
K07R05F 2007 RF5 (arc=63 days, H=18.3 ~741m) from Bornheim Obs. (Oct. 7.87-88p3, 13.86-87p4 & 16.81-82p3) and Thompsonville Obs. (Nov. 7.19-21p6)
K07P11U 2007 PU11 (Q=4.384 AU, arc=3 opp, H=16.3 ~1.86 km) from Bornheim Obs. (Oct. 7.89-91p5, 13.90-91p5, 16.85-86p4 & 22.86-87p4), PJMSO (Nov. 6.37p6), Trieste Obs. (Nov. 6.85p3), and Thompsonville Obs. (Nov. 7.23p6)
K07L32R 2007 LR32 (arc=166 days, H=17.2 ~1.23 km) from New Millennium Obs. (Nov. 1.89-92p6) and Thompsonville Obs. (Nov. 7.12-13p6)
K07G03S 2007 GS3 (arc=2 opp, H=19.3 ~467m) from PJMSO (Nov. 6.46p6)
K05Y55W 2005 YW55 (arc=4 opp, H=19.4 ~446m) from Spacewatch 0.9m (Nov. 2.30-34p3) and Naef Obs. (Nov. 6.94-95p2)
K04T16Y 2004 TY16 (arc=4 opp, H=17.0 ~1.35 km) from PJMSO (Nov. 6.47p5)
K02X14R 2002 XR14 (arc=4 opp, H=18.1 ~812m) from Spacewatch 0.9m (Nov. 3.19-21p2)
K02U31A 2002 UA31 (arc=4 opp, H=19.0 ~537m) from LINEAR (Nov. 6.13-18p4) and Thompsonville Obs. (Nov. 7.14-18p6)
K02RB8C 2002 RC118 (Q=4.624 AU, arc=2 opp, H=16.7 ~1.55 km) from Bornheim Obs. (Oct. 7.92-93p4 & 13.88-90p5)
K02J97M 2002 JM97 (Q=4.213 AU, arc=3 opp, H=16.8 ~1.48 km) from Spacewatch 0.9m (Nov. 2.42-46p3)
G2273 162273 1999 VL12 from LINEAR (Nov. 6.26-31p5)
G2004 162004 1991 VE from PJMSO (Nov. 6.45p5)
F3591 153591 2001 SN263 from Inastars Obs. (Nov. 6.97-98p3)
E3678 143678 2003 SA224 from New Millennium Obs. (Nov. 2.02-05p5)
E1079 141079 2001 XS30 from Spacewatch 0.9m (Nov. 3.47-51p2)
99907 99907 1989 VA from New Millennium Obs. (Nov. 1.90-94p3) and Atlante Obs. (Nov. 5.86-89p3)
66251 66251 1999 GJ2 from Atlante Obs. (Nov. 6.06-09p3)
53426 53426 1999 SL5 from Inastars Obs. (Nov. 6.78-81p3)
22771 22771 1999 CU3 from Bornheim Obs. (Oct. 16.83-84p5 & 22.80-81p3)
21374 21374 1997 WS22 from PJMSO (Nov. 6.41p5)
18736 18736 1998 NU from Purple Mtn. Obs. XuYi Station (Nov. 5.61-67p4), LINEAR (Nov. 6.31-36p5), and Naef Obs. (Nov. 6.94-00p3)
11500 11500 1989 UR from PJMSO (Nov. 6.47-48p5)
06489 6489 Golevka (1991 JX) from Spacewatch 0.9m (Nov. 2.08-11p3 & 4.09-13p3)
05143 5143 Heracles (1991 VL) from LINEAR (Nov. 6.07-11p3)
04954 4954 Eric (1990 SQ) from Urseanu Obs. (Nov. 2.83-85p3)
03553 3553 Mera (1985 JA) from Montana Blanca Obs. (Nov. 6.99-01p2)
02212 2212 Hephaistos (1978 SB) from New Millennium Obs. (Nov. 1.97-00p6) and LINEAR (Nov. 6.20-25p5)
01862 1862 Apollo (1932 HA) from CSS (Nov. 6.45-46p4)

Observers on 7 November '07

A total of 22 observing facilities appear in today's MPECs.

Code	Observer / observatory
`H55`	Astronomical Research Obs. in Illinois, 1 in MPEC 2007-V60 -- 2007 VR29
`J51`	Atlante Obs. in the Canary Islands, 2 in MPEC 2007-V58 -- 99907, 66251
`127`	Bornheim Obs. in Germany, 6 in MPEC 2007-V58 -- 2007 TS19, 2007 SG11, 2007 RF5, 2007 PU11, 2002 RC118, 22771
`703`	Catalina Sky Survey (CSS) in Arizona, 2 in MPECs 2007-V58 & 2007-V59 -- 2007 VD12, 1862
`850`	Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2007-V59 -- 2007 VD12
`734`	Farpoint Obs. in Kansas, 1 in MPEC 2007-V60 -- 2007 VR29
`J95`	Great Shefford Obs. in England, 1 in MPEC 2007-V58 -- 2007 VJ8
`B15`	Inastars Obs. in Germany, 4 in MPEC 2007-V58 -- 2007 VX7, 2007 UL12, 53426, 153591
`704`	LINEAR in New Mexico, 8 in MPECs 2007-V58 & 2007-V60 -- 2007 VR29, 2007 US6, 2007 TB23, 2002 UA31, 18736, 162273, 5143, 2212
`711`	McDonald Obs. in Texas, 1 in MPEC 2007-V59 -- 2007 VD12
`J46`	Montana Blanca Obs. in the Canary Islands, 1 in MPEC 2007-V58 -- 3553
`A13`	Naef Obs. in Switzerland, 4 in MPEC 2007-V58 -- 2007 VE8, 2007 TV68, 2005 YW55, 18736
`A24`	New Millennium Obs. in Italy, 5 in MPEC 2007-V58 -- 2007 US6, 2007 LR32, 99907, 143678, 2212
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 11 in MPEC 2007-V58 -- 2007 UW3, 2007 UL12, 2007 TX18, 2007 SE11, 2007 RD20, 2007 PU11, 2007 GS3, 2004 TY16, 21374, 162004, 11500
`D29`	Purple Mtn. Obs. XuYi Station in China, 1 in MPEC 2007-V58 -- 18736
`D21`	Shenton Park Obs. in Western Australia, 4 in MPEC 2007-V58 -- 2007 VL8, 2007 VF8, 2007 VD3, 2007 UL12
`E12`	Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2007-V58 -- 2007 TD71, 2007 TA19
`691`	Spacewatch 0.9m telescope in Arizona, 7 in MPEC 2007-V58 -- 2007 US51, 2007 TV68, 2005 YW55, 2002 XR14, 2002 JM97, 141079, 6489
`291`	Spacewatch 1.8m telescope in Arizona, 9 in MPEC 2007-V58 -- 2007 VV7, 2007 VJ3, 2007 VH3, 2007 VC3, 2007 VA3, 2007 UY1, 2007 UR3, 2007 UN12, 2007 TK15
`H53`	Thompsonville Obs., 4 in MPEC 2007-V58 -- 2007 RF5, 2007 PU11, 2007 LR32, 2002 UA31
`A82`	Trieste Obs., 2 in MPEC 2007-V58 -- 2007 VV6, 2007 PU11
`A92`	Urseanu Obs. in Romania, 1 in MPEC 2007-V58 -- 4954

Impact Risk Monitoring on 7 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 VD12	JPL Sentry	2320	2020-2107	119	3.4e-07	-3.92	-4.66	0	JPL: "Analysis based on 19 observations spanning 2.0326 days (2007-Nov-05.37916 to 2007-Nov-07.41176)." Diameter approximately 0.329 km. from mean, weighted H=20.1.

2007 VJ8	JPL Sentry	1546	2103	1	7.8e-08	-7.47	-7.47	0	JPL: "Analysis based on 10 observations spanning 1.1166 days (2007-Nov-05.25778 to 2007-Nov-06.3744)." Diameter approximately 0.035 km. from mean, weighted H=24.9.

2007 VE8	JPL Sentry	2320	2062	1	3.8e-06	-5.74	-5.74	0	JPL: "Analysis based on 18 observations spanning 1.5691 days (2007-Nov-05.3392 to 2007-Nov-06.90833)." Diameter approximately 0.028 km. from mean, weighted H=25.4.
2007 VE8	NEODyS	1254	2062	1	3.86e-06	-5.74	-5.74	0	NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2007/11/05.340 to 2007/11/06.909."

2007 VV7	JPL Sentry	1546	R E M O V E D						JPL: Risk listing removed at 1535 UTC.
2007 VV7	NEODyS	1223	R E M O V E D

2007 VJ3	JPL Sentry	1546	2099	1	1.5e-08	-7.90	-7.90	0	JPL: "Analysis based on 31 observations spanning 3.9196 days (2007-Nov-02.5055 to 2007-Nov-06.42508)." Diameter approximately 0.036 km. from mean, weighted H=24.9.

2007 VH3	JPL Sentry	1712	R E M O V E D						JPL: Risk listing removed at 1654 UTC.

2007 VC3	JPL Sentry	1253	2092	1	6.4e-10	-9.35	-9.35	0	JPL: "Analysis based on 25 observations spanning 4.0341 days (2007-Nov-02.26874 to 2007-Nov-06.30286)." Diameter approximately 0.036 km. from mean, weighted H=24.9.

2007 VA3	JPL Sentry	1253	R E M O V E D						JPL: Risk listing removed at 1248 UTC.

2007 US51	JPL Sentry	1546	2082-2102	5	2.0e-06	-6.85	-6.96	0	JPL: "Analysis based on 39 observations spanning 4.9110 days (2007-Oct-31.38411 to 2007-Nov-05.29514)." Diameter approximately 0.012 km. from mean, weighted H=27.2.
2007 US51	NEODyS	1546	2062-2082	5	1.2e-06	-7.05	-7.09	0	NEODyS: "Based on 39 optical observations (of which 1 are rejected as outliers) from 2007/10/31.385 to 2007/11/05.296."

2007 UN12	NEODyS	1337	2069-2090	23	6.14e-05	-6.44	-7.16	0	NEODyS: "Based on 107 optical observations (of which 0 are rejected as outliers) from 2007/10/21.373 to 2007/11/06.367."
2007 UN12	JPL Sentry	1223	2075-2107	24	2.2e-04	-5.95	-6.76	0	JPL: "Analysis based on 107 observations spanning 15.994 days (2007-Oct-21.37247 to 2007-Nov-06.36626)." Diameter approximately 0.006 km. from mean, weighted H=28.7.

2007 UY1	JPL Sentry	1223	R E M O V E D						JPL: Risk listing removed at 1126 UTC.

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 7 November '07

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

2320	Noted that JPL Sentry has posted 2007 VD12 as an impact risk - see above Noted that JPL Sentry has updated its 2007 VE8 risk assessment - see above Grabbed MPEC 2007-V60 - 2007 VR29 - see above
1712	Noted that JPL Sentry has removed 2007 VH3 as an impact risk - see above
1546	Noted that JPL Sentry has updated its 2007 US51 risk assessment - see above Noted that NEODyS has updated its 2007 US51 risk assessment - see above Noted that JPL Sentry has updated its 2007 VJ3 risk assessment - see above Noted that JPL Sentry has posted 2007 VJ8 as an impact risk - see above Noted that JPL Sentry has removed 2007 VV7 as an impact risk - see above Grabbed MPEC 2007-V59 - 2007 VD12 - see above
1337	Noted that NEODyS has updated its 2007 UN12 risk assessment - see above
1254	Noted that NEODyS has updated its 2007 VE8 risk assessment - see above
1253	Noted that JPL Sentry has removed 2007 VA3 as an impact risk - see above Noted that JPL Sentry has updated its 2007 VC3 risk assessment - see above
1223	Noted that JPL Sentry has updated its 2007 UN12 risk assessment - see above Noted that JPL Sentry has removed 2007 UY1 as an impact risk - see above Noted that NEODyS has removed 2007 VV7 as an impact risk - see above Grabbed MPEC 2007-V58 - Daily Orbit Update - see above

http://www.HohmannTransfer.com/mn/07/07311_1107.htm
Publisher information, privacy statement, and disclaimer.
This page is © Copyright 2007 Columbine, Inc. - All Rights Reserved
Any mentioned trademarks are the property of their respective owners.
Various tabular formats and data used on this page are acknowledged as belonging to JPL, MPC, NEODyS, and/or others.
Do NOT copy, mirror, or embed this page, but you are welcome to link to it, and you may embed the RSS news feed. All information here is subject to very frequent change during the day of news compilation. Individuals may make copies for their own private, non-commercial use. Please report broken links or other problems with this page to <webmaster@hohmanntransfer.com> (HTML 4.01 validation).
Important news updates are flagged by A/CC's RSS news feed (link).