29 Nov '07 Tracking News

Contents on 29 November '07

IAU Minor Planet Center
- NEOCP Activity -- one listing: 1 new
- New MPECs -- one MPEC
- Observers -- nineteen observing facilities
Impact Risk Monitoring -- three objects
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Earth's Busy Neighborhood Traffic Report
Ephemerides for risk-rated and nearby objects
Old & new CRT Archive
Old News Archive & Small Objects Archive

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 29 November '07

The MPC's NEO Confirmation Page has 1 listing: 1 new

When last checked at 2355 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one new listing. This was a "one nighter."

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 29 November '07

Minor Planet Electronic Circulars

As of last check at 2357 UTC, there has been one MPEC issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 29 Nov. '07 >> MPEC 2007-W79 - "07:09 UT" - Daily Orbit Update

Observations of risk-listed objects
K07W04V 2007 WV4 (i=38.1°, arc=9 days, H=19.2 ~490m) from Astronomical Research Obs. (ARO) (Nov. 27.32-33p3) and Guidestar Obs. (Nov. 28.85-89p3)
K07W03P 2007 WP3 (small asteroid, arc=9 days, H=23.5 ~68m) from ARO (Nov. 27.25-27p3)
K07VJ1E 2007 VE191 (small asteroid, arc=13 days, H=23.6 ~65m) from Shenton Park Obs. (Nov. 26.55p1 & 28.51-52p5) and Schiaparelli Obs. (Nov. 26.97p5)
K07VI4K 2007 VK184 (almost small, arc=15 days, H=22.0 ~135m) from ARO (Nov. 27.17-18p4)
Observations of recently (no longer) risk-listed objects
K07VD7W 2007 VW137 (arc=20 days, H=18.1 ~812m) from ARO (Nov. 27.22-23p5) and Eschenberg Obs. (Nov. 28.72-73p3)
K07V12D 2007 VD12 (arc=19 days, H=20.0 ~339m) from Cerro Armazones Obs. (Nov. 17.16-21p20)
Observations of small asteroids (H>22.0)
K07W04Z 2007 WZ4 (arc=9 days, H=24.3 ~47m) from ARO (Nov. 27.25p3) and Guidestar Obs. (Nov. 28.78-80p3)
K07VD8D 2007 VD138 (Q=4.600 AU, arc=18 days, H=24.5 ~43m) from ARO (Nov. 27.38-40p4)
K07V06V 2007 VV6 (arc=24 days, H=24.8 ~37m) from the Spacewatch 0.9m telescope (Nov. 18.19-23p3) and ARO (Nov. 27.30p2)
K07V03D 2007 VD3 (arc=27 days, H=22.2 ~123m) from Alter Satzberg Obs. (Nov. 28.84-87p4)
Observations of almost-small asteroids (21.7<H<=22.0)
K07VI4H 2007 VH184 (Q=4.100 AU, arc=16 days, H=21.9 ~141m) from the Siding Spring Survey (SSS) (Nov. 27.61-62p2)
Observations of other objects
K07W05B 2007 WB5 (arc=9 days, H=18.9 ~562m) from Farpoint Obs. (Nov. 29.14-15p4)
K07W04W 2007 WW4 (arc=8 days, H=19.6 ~407m) from SSS (Nov. 27.61p1)
K07W04U 2007 WU4 (arc=8 days, H=18.9 ~562m) from ARO (Nov. 27.33-34p3)
K07W00B 2007 WB (arc=11 days, H=18.7 ~616m) from ARO (Nov. 27.31-32p3)
K07VO3O 2007 VO243 (arc=12 days, H=19.3 ~467m) from ARO (Nov. 27.26-27p3)
K07VO3L 2007 VL243 (i=42.3°, q=0.274 AU, arc=13 days, H=17.8 ~933m) from SSS (Nov. 27.64p2)
K07VI4M 2007 VM184 (arc=16 days, H=21.0 ~214m) from Greiner Research Obs. (Nov. 28.20-21p6) and Eschenberg Obs. (Nov. 28.76p7)
K07VI3R 2007 VR183 (Q=4.353 AU, arc=75 days, H=17.3 ~1.17 km) from Petit Jean Mtn. South Obs. (PJMSO) (Nov. 28.20-21p8)
K07VD7X 2007 VX137 (arc=19 days, H=18.5 ~676m) from ARO (Nov. 27.30-31p3)
K07V08L 2007 VL8 (arc=22 days, H=21.3 ~186m) from ARO (Nov. 27.20p2)
K07V07Y 2007 VY7 (arc=40 days, H=19.5 ~426m) from Cerro Armazones Obs. (Nov. 17.24-27p10)
K07V07X 2007 VX7 (arc=25 days, H=19.4 ~446m) from Alter Satzberg Obs. (Nov. 28.88-92p6)
K07V06T 2007 VT6 (arc=24 days, H=20.3 ~295m) from Cerro Armazones Obs. (Nov. 18.22-24p8)
K07U06S 2007 US6 (arc=3 opp, H=18.3 ~741m) from PJMSO (Nov. 28.26-27p6)
K07U01X 2007 UX1 (arc=43 days, H=20.5 ~269m) from ARO (Nov. 27.35-36p3) and Naef Obs. (Nov. 28.92-95p3)
K07T71D 2007 TD71 (i=49.8°, arc=40 days, H=18.5 ~676m) from Cerro Armazones Obs. (Nov. 18.11-14p4)
K07T18Z 2007 TZ18 (arc=49 days, H=21.0 ~214m) from ARO (Nov. 27.33-34p3)
K07S11V 2007 SV11 (arc=63 days, H=18.0 ~851m) from Alter Satzberg Obs. (Nov. 28.79-82p5)
K07S11E 2007 SE11 (i=48.3°, arc=69 days, H=17.8 ~933m) from PJMSO (Nov. 28.25-26p6)
K07RD3P 2007 RP133 (Q=4.023 AU, arc=73 days, H=20.8 ~234m) from ARO (Nov. 27.20-22p4)
K07R20D 2007 RD20 (arc=74 days, H=21.0 ~214m) from ARO (Nov. 27.28-29p3)
K07P11U 2007 PU11 (Q=4.384 AU, arc=3 opp, H=16.3 ~1.86 km) from PJMSO (Nov. 28.21-22p6)
K07G03S 2007 GS3 (arc=2 opp, H=19.4 ~446m) from Cerro Armazones Obs. (Nov. 18.16-20p18)
K07E88H 2007 EH88 (arc=3 opp, H=19.7 ~389m) from the Spacewatch 1.8m telescope (1994 March 6.48-52p3)
K06UL6S 2006 US216 (IEO, q=0.278 AU, Q=0.995 AU, arc=2 opp, H=19.8 ~371m) from Cerro Armazones Obs. (Nov. 17.33-37p14)
K01FC8R 2001 FR128 (i=45.3°, arc=33 days, H=19.6 ~407m) from NEAT's USAF Haleakala telescope (2001 March 24.55-57p3)
J96T11Y 1996 TY11 (arc=6 opp, H=19.4 ~446m) from Naef Obs. (Nov. 27.90-91p2) and Eschenberg Obs. (Nov. 28.77-78p3)
F3591 153591 2001 SN263 from PJMSO (Nov. 28.23-25p5) and Atlante Obs. (Nov. 28.90-91p3)
F2742 152742 1998 XE12 from Guidestar Obs. (Nov. 28.83-84p3)
D8852 138852 2000 WN10 from Andrushivka Obs. (Nov. 20.06-07p4)
66272 66272 1999 JW6 from Guidestar Obs. (Nov. 28.81-82p3)
21374 21374 1997 WS22 from PJMSO (Nov. 28.27-28p5)
18736 18736 1998 NU from PJMSO (Nov. 28.28-29p5)
03200 3200 Phaethon (1983 TB) from Huelva Obs. (Nov. 26.96-01p4 & 27.99-01p3)
01036 1036 Ganymed (1924 TD) from Malaga Obs. (Nov. 27.09-11p3)

Observers on 29 November '07

Nineteen observing facilities appear in today's MPEC.

Code	Observer / observatory
`B03`	Alter Satzberg Obs. in Austria, 3 in MPEC 2007-W79 -- 2007 VX7, 2007 VD3, 2007 SV11
`A50`	Andrushivka Obs. in the Ukraine, 1 in MPEC 2007-W79 -- 138852
`H55`	Astronomical Research Obs. (ARO) in Illinois, 16 in MPEC 2007-W79 -- 2007 WZ4, 2007 WV4, 2007 WU4, 2007 WP3, 2007 WB, 2007 VX137, 2007 VW137, 2007 VV6, 2007 VO243, 2007 VL8, 2007 VK184, 2007 VD138, 2007 UX1, 2007 TZ18, 2007 RP133, 2007 RD20
`J51`	Atlante Obs. in the Canary Islands, 1 in MPEC 2007-W79 -- 153591
`I09`	Cerro Armazones Obs., 6 in MPEC 2007-W79 -- 2007 VY7, 2007 VT6, 2007 VD12, 2007 TD71, 2007 GS3, 2006 US216
`151`	Eschenberg Obs. in Switzerland, 3 in MPEC 2007-W79 -- 2007 VW137, 2007 VM184, 1996 TY11
`734`	Farpoint Obs. in Kansas, 1 in MPEC 2007-W79 -- 2007 WB5
`H51`	Greiner Research Obs. in Wisconsin, 1 in MPEC 2007-W79 -- 2007 VM184
`A17`	Guidestar Obs. in Germany, 4 in MPEC 2007-W79 -- 2007 WZ4, 2007 WV4, 66272, 152742
`J37`	Huelva Obs. in Spain, 1 in MPEC 2007-W79 -- 3200
`J40`	Malaga Obs. in Spain, 1 in MPEC 2007-W79 -- 1036
`608`	NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2007-W79 -- 2001 FR128
`A13`	Naef Obs. in Switzerland, 2 in MPEC 2007-W79 -- 2007 UX1, 1996 TY11
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPEC 2007-W79 -- 2007 VR183, 2007 US6, 2007 SE11, 2007 PU11, 21374, 18736, 153591
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2007-W79 -- 2007 VE191
`D21`	Shenton Park Obs. in Western Australia, 1 in MPEC 2007-W79 -- 2007 VE191
`E12`	Siding Spring Survey (SSS) in New South Wales, 3 in MPEC 2007-W79 -- 2007 WW4, 2007 VL243, 2007 VH184
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2007-W79 -- 2007 VV6
`291`	Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2007-W79 -- 2007 EH88

Impact Risk Monitoring on 29 November '07

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2355 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 WV4	JPL Sentry	1419	R E M O V E D						JPL: Risk listing removed at 1222 UTC.
2007 WV4	NEODyS	1419	R E M O V E D

2007 VE191	JPL Sentry	1419	2015	1	3.2e-08	-5.90	-5.90	0	JPL: "Analysis based on 67 observations spanning 13.250 days (2007-Nov-15.26603 to 2007-Nov-28.51619)." Diameter approximately 0.063 km. from mean, weighted H=23.7.
2007 VE191	NEODyS	1419	R E M O V E D

2007 VK184	NEODyS	1420	2046-2074	20	5.92e-05	-2.63	-2.87	0	NEODyS: "Based on 68 optical observations (of which 0 are rejected as outliers) from 2007/11/12.140 to 2007/11/27.185."
2007 VK184	JPL Sentry	1419	2046-2062	19	6.0e-05	-2.63	-2.86	0	JPL: "Analysis based on 68 observations spanning 15.045 days (2007-Nov-12.13904 to 2007-Nov-27.183976)." Diameter approximately 0.130 km. from mean, weighted H=22.0.

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 29 November '07

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

1420	Noted that NEODyS has updated its 2007 VK184 risk assessment - see above
1419	Noted that JPL Sentry has updated its 2007 VE191 risk assessment - see above Noted that NEODyS has removed 2007 VE191 as an impact risk - see above Noted that JPL Sentry has updated its 2007 VK184 risk assessment - see above Noted that JPL Sentry has removed 2007 WV4 as an impact risk - see above Noted that NEODyS has removed 2007 WV4 as an impact risk - see above Grabbed MPEC 2007-W79 - Daily Orbit Update - see above
0135	The NEOCP has become active

http://www.HohmannTransfer.com/mn/07/07333_1129.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).