2009-11-16 Tracking News

Contents on 16 November '09

IAU Minor Planet Center
- NEOCP Activity -- eight listings: 1 new, 7 updated
- New MPECs -- ten MPECs
Observers -- nineteen observing facilities
Impact Risk Monitoring -- two 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 16 November '09

The MPC's NEO Confirmation Page has 8 listings: 1 new, 7 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and seven updated listings. Of these, four were "one nighters." So far The Tracking News has counted a total of eighteen 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 16 November '09

Minor Planet Electronic Circulars

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

MPEC 2009-W01 time-stamped "07:09 UT" - Daily Orbit Update - see below
MPEC 2009-W02 time-stamped "17:03 UT" - 2009 VP44 - see below
MPEC 2009-W03 time-stamped "17:11 UT" - 2009 VQ44 - see below
MPEC 2009-W04 time-stamped "17:15 UT" - 2009 VR44 - see below
MPEC 2009-W05 time-stamped "17:17 UT" - 2009 VS44 - see below
MPEC 2009-W06 time-stamped "18:12 UT" - 2009 WA - see below
MPEC 2009-W07 time-stamped "18:17 UT" - 2009 WB - see below
MPEC 2009-W08 time-stamped "18:25 UT" - 2009 WC - see below
MPEC 2009-W09 time-stamped "22:42 UT" - Comets C/2009 O5, 2009 P3, 2009 P4, 2009 P5 (SOHO) - see below
MPEC 2009-W10 time-stamped "22:51 UT" - Comets C/2009 Q6, 2009 Q7, 2009 Q8 (SOHO)

MPEC 2009-W10 - "22:51 UT" - Comets C/2009 Q6, 2009 Q7, 2009 Q8 (SOHO)

CK09Q080 C/2009 Q8 from the LASCO Coronagraph 3 aboard the Solar & Heliospheric Obs. (SOHO) (Aug. 31.14-51p36)
CK09Q070 C/2009 Q7 from SOHO C3 (Aug. 22.76-93p18 & 22.99-03p6)
CK09Q060 C/2009 Q6 from SOHO C3 (Aug. 20.90-93p4, 20.97-03p8 & 21.10-28p18)

MPEC 2009-W09 - "22:42 UT" - Comets C/2009 O5, 2009 P3, 2009 P4, 2009 P5 (SOHO)

CK09P050 C/2009 P5 from SOHO C3 (Aug. 11.07-10p4, 11.14-15p4 & 11.59-60p4)
CK09P040 C/2009 P4 from SOHO C3 (Aug. 9.97-30p34)
CK09P030 C/2009 P3 from SOHO C3 (Aug. 1.20-28p10, 1.32-36p4, 1.40-53p12, 1.57-61p4, 1.65-68p4 & 2.15p2)
CK09O050 C/2009 O5 from SOHO C3 (July 29.15-49p28 & 29.53-68p16)

MPEC 2009-W08 - "18:25 UT" - 2009 WC

K09W00C 2009 WC (small asteroid, Earth MOID=5.8 LD, H=27.7 ~10m) was discovered at 0712 UT on 16 Nov. by the Mt. Lemmon Survey (MLS), which observed it at Nov. 16.30-32p4 and 16.40-44p11. The discovery was confirmed by Magdalena Ridge Obs. (MRO) (Nov. 16.47-48p4). This object will be coming within ten lunar distances (LD) of Earth, reaching 7.0 LD on 21 Nov.

MPEC 2009-W07 - "18:17 UT" - 2009 WB

K09W00B 2009 WB (risk-listed, H=24.2 ~49m) was discovered at 0507 UT on 16 Nov. by the Catalina Sky Survey (CSS), which observed it at Nov. 16.21-23p3 and 16.28p4. The discovery was confirmed by Grasslands Obs. (Nov. 16.26p3) and Tenagra II Obs. (Nov. 16.35p3).

MPEC 2009-W06 - "18:12 UT" - 2009 WA

K09W00A 2009 WA (H=21.1 ~204m) was discovered at 0232 UT on 16 Nov. by CSS, which observed it at Nov. 16.11-15p8. The discovery was confirmed by Grasslands Obs. (Nov. 16.21-22p3) and Andrushivka Obs. (Nov. 16.68-69p7).

MPEC 2009-W05 - "17:17 UT" - 2009 VS44

K09V44S 2009 VS44 (small asteroid, Earth MOID=6.5 LD, H=25.7 ~25m) was discovered at 0712 UT on 15 Nov. by CSS, which observed it at Nov. 15.30-36p8. The discovery was confirmed by Tenagra II Obs. (Nov. 15.39-40p3 & 16.33p3), Grasslands Obs. (Nov. 16.24-25p3), MLS (Nov. 16.30-32p4), and MRO (Nov. 16.45-46p4).

MPEC 2009-W04 - "17:15 UT" - 2009 VR44

K09V44R 2009 VR44 (small asteroid, H=25.0 ~34m) was discovered at 0708 UT on 15 Nov. by CSS, which observed it at Nov. 15.30-35p8 and 15.46p3. The discovery was confirmed by Tenagra II Obs. (Nov. 15.43p3 & 16.33-34p3), Grasslands Obs. (Nov. 16.27p3), MLS (Nov. 16.30-32p4), and MRO (Nov. 16.48-50p4).

MPEC 2009-W03 - "17:11 UT" - 2009 VQ44

K09V44Q 2009 VQ44 (borderline-small, q=0.368 AU, Earth MOID=7.4 LD, H=21.9 ~141m) was discovered at 0359 UT on 15 Nov. by LINEAR, which observed it at Nov. 15.17-20p4. The discovery was confirmed by Cordell-Lorenz Obs. (Nov. 16.12-14p8), CSS (Nov. 16.18-20p4), MLS (Nov. 16.19-21p7), Grasslands Obs. (Nov. 16.23p3), Tenagra II Obs. (Nov. 16.29-30p3), and Andrushivka Obs. (Nov. 16.66-67p7).

MPEC 2009-W02 - "17:03 UT" - 2009 VP44

K09V44P 2009 VP44 (small asteroid, Q=4.003 AU, H=25.9 ~22m) was discovered at 0649 UT on 14 Nov. by LINEAR, which observed it at Nov. 14.28-32p4. The discovery was confirmed by Great Shefford Obs. (Nov. 14.93-94p4), Sabino Canyon Obs. (Nov. 15.21-22p2), and Tenagra II Obs. (Nov. 15.35p3, 15.46p3 & 16.46p3).

<< DOU on 16 Nov. '09 >> MPEC 2009-W01 - "07:09 UT" - Daily Orbit Update

Observations of recently (no longer) risk-listed objects
K09U18W 2009 UW18 (arc=23 days, H=19.6 ~407m) from CSS (Nov. 15.33-35p4)
K09U18V 2009 UV18 (Q=5.187 AU, arc=2 opp, H=15.5 ~2.69 km, q=1.167 AU) from Atlante Obs. (Nov. 15.16-22p3)
K09U02D 2009 UD2 (small asteroid, arc=29 days, H=22.2 ~123m) from the Spacewatch 1.8m telescope (Nov. 16.18p2)
Observations of small asteroids (H>22.0)
K09V24J 2009 VJ24 (arc=7 days, H=22.1 ~129m) from Spacewatch 1.8m (Nov. 16.18-19p3)
K09V01C 2009 VC1 (arc=6 days, H=26.8 ~15m) from Tenagra II Obs. (Nov. 14.47p2 & 15.36p3)
K09V01B 2009 VB1 (arc=6 days, H=23.7 ~62m) from Tenagra II Obs. (Nov. 15.40-41p2)
K09U87T 2009 UT87 (Q=4.060 AU, arc=21 days, H=22.9 ~89m) from Spacewatch 1.8m (Nov. 16.25-26p3)
K09U19B 2009 UB19 (arc=23 days, H=23.3 ~74m) from Spacewatch 1.8m (Nov. 16.24-25p2)
Observations of other objects
K09V00Z 2009 VZ (arc=7 days, H=21.3 ~186m) from Tenagra II Obs. (Nov. 15.50p3)
K09V00W 2009 VW (arc=6 days, H=21.6 ~162m) from CSS (Nov. 15.30-33p4)
K09U28K 2009 UK28 (arc=20 days, H=19.8 ~371m) from CSS (Nov. 15.30-33p4)
K09T12K 2009 TK12 (arc=32 days, H=20.6 ~257m) from Vicksburg Obs. (Nov. 15.05-06p2)
K09S98N 2009 SN98 (arc=80 days, H=19.1 ~513m) from Spacewatch 1.8m (Nov. 16.20-21p3)
K09S19T 2009 ST19 (arc=61 days, H=18.3 ~741m) from Pear Tree Obs. (Nov. 16.14-18p3)
K09Q31F 2009 QF31 (i=42.4°, arc=82 days, H=18.3 ~741m) from Spacewatch 1.8m (Nov. 16.12p2)
K09K03C 2009 KC3 (Q=5.447 AU, arc=2 opp, H=18.0 ~851m) from Walnut Creek Obs. (Nov. 16.19-22p3)
K04X35M 2004 XM35 (arc=2 opp, H=19.8 ~371m) from LINEAR (Nov. 15.29-34p5)
K04X03J 2004 XJ3 (Q=4.472 AU, arc=2 opp, H=17.5 ~1.07 km) from LINEAR (Nov. 15.41-45p4)
K00GC7U 2000 GU127 (arc=7 opp, H=18.5 ~676m) from LINEAR (Nov. 15.35-40p4)
M4926 224926 2007 DA41 from CSS (Nov. 15.27-29p4)
L7796 217796 2000 TO64 from Rio Cuarto Obs. (Nov. 16.12-13p3)
L7683 217683 1999 RP36 from La Sagra Obs. (Nov. 13.85-88p3) and CSS (Nov. 15.27-29p4)
L5188 215188 2000 NM from CSS (Nov. 15.41-43p4)
H7614 177614 2004 HK33 from Pear Tree Obs. (Nov. 16.09-12p3)
G2998 162998 2001 SK162 from LINEAR (Nov. 15.17-22p5)
G2273 162273 1999 VL12 from CSS (Nov. 15.30-33p4)
F4244 154244 2002 KL6 from La Sagra Obs. (Nov. 13.78-80p3)
D8852 138852 2000 WN10 from LINEAR (Nov. 15.30-34p5)
99248 99248 2001 KY66 from MLS (Nov. 15.44-50p8)
66251 66251 1999 GJ2 from LINEAR (Nov. 15.41-46p5)
30825 30825 1990 TG1 from LINEAR (Nov. 15.17-22p5)
21088 21088 1992 BL2 from CSS (Nov. 15.44-45p4)
16816 16816 1997 UF9 from LINEAR (Nov. 15.23-27p5)
08201 8201 1994 AH2 from LINEAR (Nov. 15.29-34p5)
05626 5626 1991 FE from Vicksburg Obs. (Nov. 15.09-10p3)
05587 5587 1990 SB from LINEAR (Nov. 15.30-34p5)
05131 5131 1990 BG from Goodricke-Pigott Obs. (Nov. 15.49-52p3)
04015 4015 Wilson-Harrington (1979 VA) from Cordell-Lorenz Obs. (Nov. 16.08-12p5)
03552 3552 Don Quixote (1983 SA) from Vicksburg Obs. (Nov. 14.05-06p3)
03361 3361 Orpheus (1982 HR) from Pear Tree Obs. (Nov. 16.03-06p3)
01943 1943 Anteros (1973 EC) from LINEAR (Nov. 15.11-16p5)
01627 1627 Ivar (1929 SH) from CSS (Nov. 15.47-48p4)
00433 433 Eros (1898 DQ) from LINEAR (Nov. 15.11-16p5)

Observers on 16 November '09

Nineteen observing facilities appear in today's MPECs.

Code	Observer / observatory
`A50`	Andrushivka Obs. in the Ukraine, 2 in MPECs 2009-W03 & 2009-W06 -- 2009 WA, 2009 VQ44
`J51`	Atlante Obs. in the Canary Islands, 1 in MPEC 2009-W01 -- 2009 UV18
`703`	Catalina Sky Survey (CSS) in Arizona, 14 in MPECs 2009-W01, 2009-W03, 2009-W04, 2009-W05, 2009-W06 & 2009-W07 -- 2009 WB, 2009 WA, 2009 VW, 2009 VS44, 2009 VR44, 2009 VQ44, 2009 UW18, 2009 UK28, 224926, 217683, 215188, 21088, 162273, 1627
`850`	Cordell-Lorenz Obs. in Tennessee, 2 in MPECs 2009-W01 & 2009-W03 -- 2009 VQ44, 4015
`683`	Goodricke-Pigott Obs. in Arizona, 1 in MPEC 2009-W01 -- 5131
`651`	Grasslands Obs. in Arizona, 5 in MPECs 2009-W03, 2009-W04, 2009-W05, 2009-W06 & 2009-W07 -- 2009 WB, 2009 WA, 2009 VS44, 2009 VR44, 2009 VQ44
`J95`	Great Shefford Obs. in England, 1 in MPEC 2009-W02 -- 2009 VP44
`704`	LINEAR in New Mexico, 14 in MPECs 2009-W01, 2009-W02 & 2009-W03 -- 2009 VQ44, 2009 VP44, 2004 XM35, 2004 XJ3, 2000 GU127, 66251, 30825, 16816, 162998, 138852, 8201, 5587, 1943, 433
`J75`	La Sagra Obs. in Spain, 2 in MPEC 2009-W01 -- 217683, 154244
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 3 in MPECs 2009-W04, 2009-W05 & 2009-W08 -- 2009 WC, 2009 VS44, 2009 VR44
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 5 in MPECs 2009-W01, 2009-W03, 2009-W04, 2009-W05 & 2009-W08 -- 2009 WC, 2009 VS44, 2009 VR44, 2009 VQ44, 99248
`H23`	Pear Tree Obs. in Florida, 3 in MPEC 2009-W01 -- 2009 ST19, 177614, 3361
`I20`	Rio Cuarto Obs. in Argentina, 1 in MPEC 2009-W01 -- 217796
`854`	Sabino Canyon Obs. in Arizona, 1 in MPEC 2009-W02 -- 2009 VP44
`2493`	LASCO Coronagraph 3 (SOHO C3) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 7 in MPECs 2009-W09 & 2009-W10 -- C/2009 Q8, C/2009 Q7, C/2009 Q6, C/2009 P5, C/2009 P4, C/2009 P3, C/2009 O5
`291`	Spacewatch 1.8m telescope in Arizona, 6 in MPEC 2009-W01 -- 2009 VJ24, 2009 UT87, 2009 UD2, 2009 UB19, 2009 SN98, 2009 QF31
`926`	Tenagra II Obs. in Arizona, 8 in MPECs 2009-W01, 2009-W02, 2009-W03, 2009-W04, 2009-W05 & 2009-W07 -- 2009 WB, 2009 VZ, 2009 VS44, 2009 VR44, 2009 VQ44, 2009 VP44, 2009 VC1, 2009 VB1
`H47`	Vicksburg Obs. in Mississippi, 3 in MPEC 2009-W01 -- 2009 TK12, 5626, 3552
`G56`	Walnut Creek Obs. in northern California, 1 in MPEC 2009-W01 -- 2009 KC3

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

Impact Risk Monitoring on 16 November '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 WB	JPL Sentry	2001	2104	1	1.4e-10	-9.16	-9.16	0	JPL: "Analysis based on 13 observations spanning .13480 days (2009-Nov-16.21331 to 2009-Nov-16.34811)." Diameter approximately 0.080 km. from mean, weighted H=23.1.

2009 BD	NEODyS	1631	2071-2090	5	1.1e-05	-6.95	-7.18	0	NEODyS: "Based on 122 optical observations (of which 1 are rejected as outliers) from 2009/01/16.277 to 2009/11/01.469."

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 16 November '09

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

2301	Grabbed MPEC 2009-W09 - Comets C/2009 O5, 2009 P3, 2009 P4, 2009 P5 (SOHO) - see above Grabbed MPEC 2009-W10 - Comets C/2009 Q6, 2009 Q7, 2009 Q8 (SOHO) - see above
2001	Noted that JPL Sentry has posted 2009 WB as an impact risk - see above
1830	Grabbed MPEC 2009-W06 - 2009 WA - see above Grabbed MPEC 2009-W07 - 2009 WB - see above Grabbed MPEC 2009-W08 - 2009 WC - see above
1801	Grabbed MPEC 2009-W02 - 2009 VP44 - see above Grabbed MPEC 2009-W03 - 2009 VQ44 - see above Grabbed MPEC 2009-W04 - 2009 VR44 - see above Grabbed MPEC 2009-W05 - 2009 VS44 - see above
1631	Noted that NEODyS has updated its 2009 BD risk assessment - see above
1528	Grabbed MPEC 2009-W01 - Daily Orbit Update - see above

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