2009-11-22 Tracking News

Contents on 22 November '09

IAU Minor Planet Center
- NEOCP Activity -- 26 listings: 6 new, 20 updated
- New MPECs -- one MPEC
Observers -- 21 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
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 22 November '09

The MPC's NEO Confirmation Page has 26 listings: 6 new, 20 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had six new and 20 updated listings. Of these, seventeen were "one nighters." So far The Tracking News has counted a total of 33 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 22 November '09

Minor Planet Electronic Circulars

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

<< DOU on 22 Nov. '09 >> MPEC 2009-W63 - "07:12 UT" - Daily Orbit Update

Observations of risk-listed objects
K09W06K 2009 WK6 (arc=4 days, H=19.2 ~490m) from the Spacewatch 1.8m telescope (Nov. 21.30-31p3)
K09W01M 2009 WM1 (arc=4 days, H=20.4 ~282m) from Spacewatch 1.8m (Nov. 21.48-49p3)
K09W01J 2009 WJ1 (Q=4.132 AU, arc=5 days, H=21.2 ~195m) from Spacewatch 1.8m (Nov. 22.07-08p3)
K09V25Z 2009 VZ25 (small asteroid, Q=4.490 AU, arc=10 days, H=23.7 ~62m) from Spacewatch 1.8m (Nov. 21.39-41p3)
Observations of recently (no longer) risk-listed objects
K09W07Y 2009 WY7 (small asteroid, q=0.259 AU, arc=3 days, H=23.9 ~56m) from the Catalina Sky Survey (CSS) (Nov. 21.24-25p5) and McCarthy Obs. (Nov. 22.12-13p3)
K09W00F 2009 WF (arc=4 days, H=19.9 ~355m) from Astronomical Research Obs. Westfield (ARO Westfield) (Nov. 20.48-49p5)
K09W00B 2009 WB (small asteroid, arc=4 days, H=24.2 ~49m) from Schiaparelli Obs. (Nov. 18.93-95p5)
K09V25R 2009 VR25 (small asteroid, arc=9 days, H=23.4 ~71m) from ARO Westfield (Nov. 20.05-06p3)
K09U18V 2009 UV18 (Q=5.187 AU, arc=2 opp, H=15.5 ~2.69 km, q=1.167 AU) from the Mt. Lemmon Survey (MLS) (Nov. 21.51-54p4)
Observations of small asteroids (H>22.0)
K09W08N 2009 WN8 (arc=3 days, H=25.2 ~31m) from Andrushivka Obs. (Nov. 20.84-85p7), CSS (Nov. 21.25p2), Magdalena Ridge Obs. (MRO) (Nov. 21.29-30p3), and McCarthy Obs. (Nov. 22.10p2)
K09W06X 2009 WX6 (arc=3 days, H=23.9 ~56m) from McCarthy Obs. (Nov. 22.15-16p3)
K09W01K 2009 WK1 (arc=2 days, H=27.2 ~12m) from Schiaparelli Obs. (Nov. 18.88-89p2)
K09U19Y 2009 UY19 (arc=26 days, H=23.5 ~68m) from ARO Westfield (Nov. 20.04-05p4)
K09Q34Z 2009 QZ34 (arc=85 days, H=22.5 ~107m) from Spacewatch 1.8m (Nov. 21.50-51p3)
Observations of almost-small asteroids (21.7<H<=22.0)
K09W11D 2009 WD11 (arc=1 day, H=21.8 ~148m) from ARO Westfield (Nov. 21.30-31p3)
K09W11C 2009 WC11 (arc=1 day, H=22.0 ~135m) from ARO Westfield (Nov. 21.27-28p2)
K09V44Q 2009 VQ44 (q=0.370 AU, arc=6 days, H=21.9 ~141m) from ARO Westfield (Nov. 21.18-19p4)
Observations of other objects
K09W07F 2009 WF7 (arc=2 days, H=18.9 ~562m) from Tenagra II Obs. (Nov. 21.45-46p2)
K09W01L 2009 WL1 (arc=5 days, H=18.5 ~676m) from ARO Westfield (Nov. 20.41-42p3) and McCarthy Obs. (Nov. 22.17-18p4)
K09W00N 2009 WN (arc=5 days, H=18.8 ~589m) from ARO Westfield (Nov. 20.47-48p3) and CSS (Nov. 21.48-51p4)
K09W00D 2009 WD (i=40.6°, arc=4 days, H=20.1 ~323m) from ARO Westfield (Nov. 20.12p3)
K09W00A 2009 WA (arc=4 days, H=21.3 ~186m) from ARO Westfield (Nov. 20.09p3)
K09V00Z 2009 VZ (arc=12 days, H=21.3 ~186m) from ARO Westfield (Nov. 20.49p5)
K09V00W 2009 VW (arc=12 days, H=21.6 ~162m) from La Sagra Obs. (Nov. 20.84-87p3) and the Spacewatch 0.9m telescope (Nov. 21.12-16p3)
K09U00Q 2009 UQ (arc=34 days, H=21.7 ~155m) from ARO Westfield (Nov. 20.15-17p3 at V=21.9-22.2)
K09U00N 2009 UN (Q=4.518 AU, arc=35 days, H=21.4 ~178m) from ARO Westfield (Nov. 20.39-40p3)
K09T10G 2009 TG10 (i=40.9°, arc=36 days, H=17.4 ~1.12 km) from MLS (Nov. 20.23-24p4 at V=21.6-22.4)
K09T08B 2009 TB8 (arc=38 days, H=18.1 ~812m) from ARO Westfield (Nov. 20.10-11p3) and Desert Moon Obs. (Nov. 21.14-21p3)
K09SA3M 2009 SM103 (Q=4.413 AU, arc=58 days, H=16.8 ~1.48 km) from CSS (Nov. 20.11-13p4), LINEAR (Nov. 21.07-12p5), and Thompsonville Obs. (Nov. 22.09-11p6)
K09Q34D 2009 QD34 (arc=86 days, H=18.0 ~851m) from La Sagra Obs. (Nov. 20.04-07p3)
K09N00H 2009 NH (arc=134 days, H=18.7 ~616m) from Thompsonville Obs. (Nov. 22.17-18p6)
K09N00A 2009 NA (Q=4.129 AU, arc=144 days, H=17.6 ~1.02 km) from Engelhardt Obs. Zelenchukskaya Station (Nov. 21.83-85p5)
K09K03C 2009 KC3 (Q=5.447 AU, arc=2 opp, H=18.0 ~851m) from CSS (Nov. 21.12-15p4)
K09H21D 2009 HD21 (Q=4.673 AU, arc=2 opp, H=18.2 ~776m) from Schiaparelli Obs. (Nov. 18.91-92p2)
K08W59B 2008 WB59 (arc=2 opp, H=19.4 ~446m) from Thompsonville Obs. (Nov. 22.14-16p6)
K07B29G 2007 BG29 (arc=3 opp, H=18.0 ~851m) from LINEAR (Nov. 21.45-48p4)
K06A04O 2006 AO4 (Q=4.162 AU, arc=4 opp, H=15.5 ~2.69 km, q=1.098 AU) from LINEAR (Nov. 21.43-48p4)
K05R06Q 2005 RQ6 (arc=2 opp, H=18.8 ~589m) from Hamamatsu-Yuto Obs. (Nov. 21.49-52p7), Atlante Obs. (Nov. 22.06-07p3), and Thompsonville Obs. (Nov. 22.12-14p6)
K02Y04F 2002 YF4 (arc=3 opp, H=18.6 ~645m) from Desert Moon Obs. (Nov. 21.36-39p3)
K02W12X 2002 WX12 (arc=2 opp, H=19.9 ~355m) from ARO Westfield (Nov. 21.32-34p3)
K02U03N 2002 UN3 (arc=5 opp, H=18.6 ~645m) from Schiaparelli Obs. (Nov. 18.96p2)
K02N16W 2002 NW16 (arc=2 opp, H=18.1 ~812m) from Thompsonville Obs. (Nov. 22.06-07p6)
L7683 217683 1999 RP36 from Castelmartini Obs. (Nov. 19.00p3)
K7945 207945 1991 JW from LINEAR (Nov. 21.44-48p4)
G2273 162273 1999 VL12 from Castelmartini Obs. (Nov. 19.99p3)
G2004 162004 1991 VE from LINEAR (Nov. 21.43-48p5)
F5334 155334 2006 DZ169 from Desert Moon Obs. (Nov. 21.05-10p3)
F4244 154244 2002 KL6 from Castelmartini Obs. (Nov. 19.91p3)
F2560 152560 1991 BN from La Sagra Obs. (Nov. 21.17-20p3), LINEAR (Nov. 21.37-41p4), and MLS (Nov. 21.40-43p4)
E1052 141052 2001 XR1 from CSS (Nov. 21.23-24p3)
D6617 136617 1994 CC from Castelmartini Obs. (Nov. 19.90-91p3)
99248 99248 2001 KY66 from MLS (Nov. 21.44-46p4)
89959 89959 2002 NT7 from CSS (Nov. 21.52-53p3)
85804 85804 1998 WQ5 from CSS (Nov. 21.19-21p4)
54401 54401 2000 LM from LINEAR (Nov. 21.14-17p3)
22771 22771 1999 CU3 from CSS (Nov. 21.22-24p5)
20790 20790 2000 SE45 from LINEAR (Nov. 21.12-17p5)
17182 17182 1999 VU from CSS (Nov. 21.52-54p4)
08201 8201 1994 AH2 from CSS (Nov. 21.34-36p4)
06239 6239 Minos (1989 QF) from Castelmartini Obs. (Nov. 19.96-97p3)
05646 5646 1990 TR from Bergisch Gladbach Obs. (Nov. 20.19-23p4)
05645 5645 1990 SP from CSS (Nov. 21.51-53p4)
04015 4015 Wilson-Harrington (1979 VA) from Santa Maria de Montmagastrell Obs. (Nov. 20.79-80p3)
03200 3200 Phaethon (1983 TB) from Pear Tree Obs. (Nov. 19.04-08p3)
02212 2212 Hephaistos (1978 SB) from CSS (Nov. 21.45-47p4)

Observers on 22 November '09

A total of 21 observing facilities appear in today's MPEC.

Code	Observer / observatory
`A50`	Andrushivka Obs. in the Ukraine, 1 in MPEC 2009-W63 -- 2009 WN8
`H21`	Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 15 in MPEC 2009-W63 -- 2009 WN, 2009 WL1, 2009 WF, 2009 WD11, 2009 WD, 2009 WC11, 2009 WA, 2009 VZ, 2009 VR25, 2009 VQ44, 2009 UY19, 2009 UQ, 2009 UN, 2009 TB8, 2002 WX12
`J51`	Atlante Obs. in the Canary Islands, 1 in MPEC 2009-W63 -- 2005 RQ6
`621`	Bergisch Gladbach Obs. in Germany, 1 in MPEC 2009-W63 -- 5646
`160`	Castelmartini Obs. in Italy, 5 in MPEC 2009-W63 -- 217683, 162273, 154244, 136617, 6239
`703`	Catalina Sky Survey (CSS) in Arizona, 13 in MPEC 2009-W63 -- 2009 WY7, 2009 WN8, 2009 WN, 2009 SM103, 2009 KC3, 89959, 85804, 22771, 17182, 141052, 8201, 5645, 2212
`448`	Desert Moon Obs. in New Mexico, 3 in MPEC 2009-W63 -- 2009 TB8, 2002 YF4, 155334
`114`	Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2009-W63 -- 2009 NA
`379`	Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2009-W63 -- 2005 RQ6
`704`	LINEAR in New Mexico, 8 in MPEC 2009-W63 -- 2009 SM103, 2007 BG29, 2006 AO4, 54401, 207945, 20790, 162004, 152560
`J75`	La Sagra Obs. in Spain, 3 in MPEC 2009-W63 -- 2009 VW, 2009 QD34, 152560
`H01`	Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2009-W63 -- 2009 WN8
`932`	McCarthy Obs. in Connecticut, 4 in MPEC 2009-W63 -- 2009 WY7, 2009 WX6, 2009 WN8, 2009 WL1
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 4 in MPEC 2009-W63 -- 2009 UV18, 2009 TG10, 99248, 152560
`H23`	Pear Tree Obs. in Florida, 1 in MPEC 2009-W63 -- 3200
`B74`	Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2009-W63 -- 4015
`204`	Schiaparelli Obs. in Italy, 4 in MPEC 2009-W63 -- 2009 WK1, 2009 WB, 2009 HD21, 2002 UN3
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2009-W63 -- 2009 VW
`291`	Spacewatch 1.8m telescope in Arizona, 5 in MPEC 2009-W63 -- 2009 WM1, 2009 WK6, 2009 WJ1, 2009 VZ25, 2009 QZ34
`926`	Tenagra II Obs. in Arizona, 1 in MPEC 2009-W63 -- 2009 WF7
`H53`	Thompsonville Obs. in Illinois, 5 in MPEC 2009-W63 -- 2009 SM103, 2009 NH, 2008 WB59, 2005 RQ6, 2002 NW16

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

Impact Risk Monitoring on 22 November '09

**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. 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	1545	2018-2089	80	4.06e-05	-1.72	-2.14	0	NEODyS: "Based on 33 optical observations (of which 0 are rejected as outliers) from 2009/11/17.465 to 2009/11/21.490."
2009 WM1	JPL Sentry	1544	2018-2106	87	4.9e-05	-1.69	-2.12	0	JPL: "Analysis based on 33 observations spanning 4.0254 days (2009-Nov-17.4641 to 2009-Nov-21.4895)." Diameter approximately 0.272 km. from mean, weighted H=20.5.

2009 WJ1	NEODyS	1545	2057-2080	3	7.93e-09	-6.27	-6.42	0	NEODyS: "Based on 34 optical observations (of which 0 are rejected as outliers) from 2009/11/17.110 to 2009/11/22.077."
2009 WJ1	JPL Sentry	1544	2091-2107	2	1.2e-09	-7.09	-7.13	0	JPL: "Analysis based on 34 observations spanning 4.9672 days (2009-Nov-17.10881 to 2009-Nov-22.07604)." Diameter approximately 0.210 km. from mean, weighted H=21.0.

2009 VZ25	JPL Sentry	1544	R E M O V E D						JPL: Risk listing removed at 0949 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 22 November '09

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

1545	Noted that NEODyS has updated its 2009 WJ1 risk assessment - see above Noted that NEODyS has updated its 2009 WM1 risk assessment - see above Grabbed MPEC 2009-W63 - Daily Orbit Update - see above
1544	Noted that JPL Sentry has removed 2009 VZ25 as an impact risk - see above Noted that JPL Sentry has updated its 2009 WJ1 risk assessment - see above Noted that JPL Sentry has updated its 2009 WM1 risk assessment - see above

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