2009-12-09 Tracking News

Contents on 9 December '09

IAU Minor Planet Center
- NEOCP Activity -- three listings: 3 updated
- New MPECs -- two MPECs
Observers -- thirteen observing facilities
Impact Risk Monitoring -- one object
Chronology

Resources:

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

The latest A/CC news is available via framed access, 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 9 December '09

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

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three updated listings.

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 9 December '09

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2009-X29 time-stamped "07:08 UT" - Daily Orbit Update - see below
MPEC 2009-X30 time-stamped "17:46 UT" - 2007 WV3

MPEC 2009-X30 - "17:46 UT" - 2007 WV3

K07W03V 2007 WV3 (H=19.9 ~355m) from David Tholen's team on Mauna Kea (June 2.41p3 & 22.38p3)

<< DOU on 9 Dec. '09 >> MPEC 2009-X29 - "07:08 UT" - Daily Orbit Update

Observations of risk-listed objects
K09W01M 2009 WM1 (arc=19 days, H=20.4 ~282m) from Tholen team/Mauna Kea (Dec. 6.60-61p4)
Observations of recently (no longer) risk-listed objects
K09W07Y 2009 WY7 (small asteroid, q=0.256 AU, arc=17 days, H=24.1 ~51m) from Schiaparelli Obs. (Nov. 21.78-79p3)
K09W06R 2009 WR6 (arc=17 days, H=18.3 ~741m) from Astronomical Research Obs. Westfield (ARO Westfield) (Dec. 5.39-40p3)
K09W00F 2009 WF (arc=23 days, H=19.8 ~371m) from Schiaparelli Obs. (Nov. 21.80-81p3), ARO Westfield (Dec. 5.30p3), and Verona Obs. (Dec. 8.88-89p4)
J98H03J 1998 HJ3 (arc=2 opp, H=18.8 ~589m) from Schiaparelli Obs. (Nov. 21.92p2)
Observations of small asteroids (H>22.0)
K09WA6N 2009 WN106 (arc=9 days, H=24.8 ~37m) from ARO Westfield (Dec. 5.42-45p3)
K09W54B 2009 WB54 (arc=1 day, H=26.4 ~18m) from Schiaparelli Obs. (Nov. 25.15-18p2)
K09W25V 2009 WV25 (arc=9 days, H=24.0 ~54m) from Schiaparelli Obs. (Nov. 25.14-18p3)
K09W06X 2009 WX6 (arc=8 days, H=23.9 ~56m) from Schiaparelli Obs. (Nov. 21.75-77p3)
Observations of other objects
K09X00D 2009 XD (Q=4.098 AU, arc=2 days, H=18.5 ~676m) from Osaki Obs. (Dec. 8.44-46p3), Monte Baldo Obs. (Dec. 8.77-78p6), Verona Obs. (Dec. 8.87-88p4), and Peschiera del Garda Obs. (Dec. 8.96-00p4)
K09WA6D 2009 WD106 (arc=11 days, H=18.7 ~616m) from Verona Obs. (Dec. 5.95-96p3)
K09WA4Z 2009 WZ104 (arc=13 days, H=20.7 ~245m) from Dresden Obs. (Dec. 7.80-81p2)
K09W25R 2009 WR25 (arc=14 days, H=21.6 ~162m) from ARO Westfield (Dec. 5.11-13p3)
K09W25P 2009 WP25 (q=0.318 AU, arc=14 days, H=19.7 ~389m) from ARO Westfield (Dec. 5.09-10p3)
K09W06O 2009 WO6 (Q=4.882 AU, arc=46 days, H=17.3 ~1.17 km) from Schiaparelli Obs. (Nov. 21.90p2)
K09W01L 2009 WL1 (arc=18 days, H=18.6 ~645m) from ARO Westfield (Dec. 5.28-29p3)
K09W00N 2009 WN (arc=19 days, H=18.8 ~589m) from ARO Westfield (Dec. 5.41p3)
K09V00Z 2009 VZ (arc=21 days, H=21.3 ~186m) from Verona Obs. (Nov. 11.92p4)
K09U19E 2009 UE19 (Q=4.051 AU, arc=42 days, H=20.5 ~269m) from ARO Westfield (Dec. 5.21-23p3)
K09U03N 2009 UN3 (i=37.4°, arc=50 days, H=17.7 ~977m) from the Siding Spring Survey (SSS) (Dec. 8.71p1)
K09U03M 2009 UM3 (Q=4.351 AU, arc=47 days, H=17.9 ~891m) from ARO Westfield (Dec. 5.17-18p3)
K09T10M 2009 TM10 (arc=73 days, H=19.4 ~446m) from Schiaparelli Obs. (Nov. 21.83-87p2)
K09T08G 2009 TG8 (arc=52 days, H=19.1 ~513m) from ARO Westfield (Dec. 5.37-38p2)
K09S19T 2009 ST19 (arc=84 days, H=18.3 ~741m) from Santa Maria de Montmagastrell Obs. (Dec. 8.88-90p3)
K09S02F 2009 SF2 (arc=78 days, H=20.8 ~234m) from ARO Westfield (Dec. 5.19-20p3)
K09O09P 2009 OP9 (arc=129 days, H=19.3 ~467m) from ARO Westfield (Dec. 5.31-32p3)
K09O00G 2009 OG (i=48.3°, q=0.382 AU, Q=5.029 AU, arc=143 days, H=16.2 ~1.95 km) from SSS (Dec. 7.73-74p2)
K09N00A 2009 NA (Q=4.129 AU, arc=161 days, H=17.6 ~1.02 km) from Peschiera del Garda Obs. (Dec. 8.85-88p3) and Verona Obs. (Dec. 8.90-91p4)
K06U00R 2006 UR (arc=2 opp, H=19.2 ~490m) from Schiaparelli Obs. (Nov. 21.86p1 & 21.91p2)
K04T18B 2004 TB18 (arc=3 opp, H=17.6 ~1.02 km) from ARO Westfield (Dec. 6.35-36p5)
K02W00P 2002 WP (arc=3 opp, H=18.5 ~676m) from An Carraig Obs. (Dec. 8.90-92p3)
K02A07P 2002 AP7 (arc=4 opp, H=19.3 ~467m) from ARO Westfield (Dec. 5.33-34p3)
K01T02E 2001 TE2 (arc=5 opp, H=20.0 ~339m) from ARO Westfield (Dec. 5.34-36p3)
E3651 143651 2003 QO104 from Kourovskaya Obs. (April 14.88-89p6 & 14.97-98p8)
D8013 138013 2000 CN101 from ARO Westfield (Dec. 6.37p3)
16834 16834 1997 WU22 from Kourovskaya Obs. (Oct. 14.70-71p10, 14.81p9 & 14.94-95p11)
04015 4015 Wilson-Harrington (1979 VA) from Santa Maria de M. Obs. (Dec. 8.81p3) and La Vara Obs. (Dec. 8.88p3)

Observers on 9 December '09

Thirteen observing facilities appear in today's MPECs.

Code	Observer / observatory
`J16`	An Carraig Obs. in Northern Ireland, 1 in MPEC 2009-X29 -- 2002 WP
`H21`	Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 16 in MPEC 2009-X29 -- 2009 WR6, 2009 WR25, 2009 WP25, 2009 WN106, 2009 WN, 2009 WL1, 2009 WF, 2009 UM3, 2009 UE19, 2009 TG8, 2009 SF2, 2009 OP9, 2004 TB18, 2002 AP7, 2001 TE2, 138013
`639`	Dresden Obs. in Germany, 1 in MPEC 2009-X29 -- 2009 WZ104
`168`	Kourovskaya Obs. in Russia, 2 in MPEC 2009-X29 -- 16834, 143651
`J38`	La Vara Obs. in Spain, 1 in MPEC 2009-X29 -- 4015
`5682`	David Tholen's team on Mauna Kea in Hawaii, 2 in MPECs 2009-X29 & 2009-X30 -- 2009 WM1, 2007 WV3
`A99`	Monte Baldo Obs. in Italy, 1 in MPEC 2009-X29 -- 2009 XD
`D92`	Osaki Obs. in Japan, 1 in MPEC 2009-X29 -- 2009 XD
`A53`	Peschiera del Garda Obs. in Italy, 2 in MPEC 2009-X29 -- 2009 XD, 2009 NA
`B74`	Santa Maria de Montmagastrell Obs. in Spain, 2 in MPEC 2009-X29 -- 2009 ST19, 4015
`204`	Schiaparelli Obs. in Italy, 9 in MPEC 2009-X29 -- 2009 WY7, 2009 WX6, 2009 WV25, 2009 WO6, 2009 WF, 2009 WB54, 2009 TM10, 2006 UR, 1998 HJ3
`E12`	Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2009-X29 -- 2009 UN3, 2009 OG
`A48`	Verona Obs. in Italy, 5 in MPEC 2009-X29 -- 2009 XD, 2009 WF, 2009 WD106, 2009 VZ, 2009 NA

For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring on 9 December '09

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2358 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. Beginning Jan. 22nd, both are also posting impact solutions beyond 100 years for a few 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

2009 WM1	NEODyS	1525	2062-2079	2	5.02e-08	-5.16	-5.29	0	NEODyS: "Based on 79 optical observations (of which 0 are rejected as outliers) from 2009/11/17.465 to 2009/12/06.607."
2009 WM1	JPL Sentry	1525	R E M O V E D						JPL: Risk listing removed at 0956 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 9 December '09

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

1800	Grabbed MPEC 2009-X30 - 2007 WV3 - see above
1525	Noted that JPL Sentry has removed 2009 WM1 as an impact risk - see above Noted that NEODyS has updated its 2009 WM1 risk assessment - see above Grabbed MPEC 2009-X29 - Daily Orbit Update - see above

http://www.HohmannTransfer.com/mn/09/09343_1209.htm
Publisher information, privacy statement, and disclaimer.
This page is © Copyright 2009 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).