2009-11-23 Tracking News

Contents on 23 November '09

IAU Minor Planet Center
- NEOCP Activity -- eight listings: 1 new, 7 updated
- New MPECs -- 22 MPECs
Observers -- 31 observing facilities
Impact Risk Monitoring -- eight 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 23 November '09

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

When last checked at 2309 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and seven updated listings. Of these, seven were "one nighters." The Tracking News counted a total of 38 listings on the NEOCP at some point on this day.

New MPECs on 23 November '09

Minor Planet Electronic Circulars

There were 22 MPECs posted this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2009-W64 time-stamped "00:36 UT" - 2009 WN25 - see below
MPEC 2009-W65 time-stamped "01:34 UT" - 2009 WP25 - see below
MPEC 2009-W66 time-stamped "01:39 UT" - 2009 WQ25 - see below
MPEC 2009-W67 time-stamped "01:42 UT" - 2009 WR25 - see below
MPEC 2009-W68 time-stamped "01:52 UT" - 2009 WS25 - see below
MPEC 2009-W69 time-stamped "01:58 UT" - 2009 WT25 - see below
MPEC 2009-W70 time-stamped "02:01 UT" - 2009 WU25 - see below
MPEC 2009-W71 time-stamped "02:08 UT" - 2009 WV25 - see below
MPEC 2009-W72 time-stamped "02:17 UT" - 2009 WW25 - see below
MPEC 2009-W73 time-stamped "07:12 UT" - Daily Orbit Update - see below
MPEC 2009-W74 time-stamped "12:41 UT" - 2009 WC26 - see below
MPEC 2009-W75 time-stamped "17:43 UT" - 2009 WV51 - see below
MPEC 2009-W76 time-stamped "18:16 UT" - 2009 WX51 - see below
MPEC 2009-W77 time-stamped "18:24 UT" - 2009 WY51 - see below
MPEC 2009-W78 time-stamped "18:28 UT" - 2009 WZ51 - see below
MPEC 2009-W79 time-stamped "18:33 UT" - 2009 WA52 - see below
MPEC 2009-W80 time-stamped "18:38 UT" - 2009 WB52 - see below
MPEC 2009-W81 time-stamped "18:43 UT" - 2009 WD52 - see below
MPEC 2009-W82 time-stamped "19:52 UT" - 2008 FT6 - see below
MPEC 2009-W83 time-stamped "20:43 UT" - 2009 WQ52 - see below
MPEC 2009-W84 time-stamped "20:51 UT" - 2009 WR52 - see below
MPEC 2009-W85 time-stamped "20:55 UT" - 2009 WS52

MPEC 2009-W85 - "20:55 UT" - 2009 WS52

K09W52S 2009 WS52 (small asteroid, H=23.6 ~65m) was discovered at 0740 UT on 23 Nov. by the Mt. Lemmon Survey (MLS), which observed it at Nov. 23.32-34p3 and 23.39p4. The discovery was confirmed by Tenagra II Obs. (Nov. 23.45p3).

MPEC 2009-W84 - "20:51 UT" - 2009 WR52

K09W52R 2009 WR52 (risk-listed, Earth MOID=3.5 LD, H=28.0 ~9m) was discovered at 0515 UT on 23 Nov. by MLS, which observed it at Nov. 23.22-27p8. The discovery was confirmed by Tenagra II Obs. (Nov. 23.39-40p3). This object is now within ten lunar distances (LD) of Earth, reaching 3.5 LD on 18 Nov.

MPEC 2009-W83 - "20:43 UT" - 2009 WQ52

K09W52Q 2009 WQ52 (risk-listed, Q=4.260 AU, Earth MOID=2.9 LD, H=28.1 ~8m) was discovered at 0446 UT on 23 Nov. by MLS, which observed it at Nov. 23.20-24p8. The discovery was confirmed by Magdalena Ridge Obs. (MRO) (Nov. 23.25-27p4) and Tenagra II Obs. (Nov. 23.38p3). This object will be coming within ten lunar distances (LD) of Earth, reaching 3.3 LD on 27 Nov.

MPEC 2009-W82 - "19:52 UT" - 2008 FT6

K08F06T 2008 FT6 (H=17.5 ~1.07 km) from David Tholen's team on Mauna Kea (June 2.55p3 at R=21.6-7 & 22.53-54p2 at R=22.0-22.1)

MPEC 2009-W81 - "18:43 UT" - 2009 WD52

K09W52D 2009 WD52 (small asteroid, H=24.9 ~35m) was discovered at 0751 UT on 22 Nov. by the Catalina Sky Survey (CSS), which observed it at Nov. 22.33-39p8 and 22.46-47p3. The discovery was confirmed by MRO (Nov. 22.46-47p4 & 23.22-24p5), McCarthy Obs. (Nov. 23.13-14p3), Sabino Canyon Obs. (Nov. 23.27-28p3), Astronomical Research Obs. Westfield (ARO Westfield) (Nov. 23.28p3), MLS (Nov. 23.32-36p7), Sandlot Obs. (Nov. 23.32-33p5), and Tenagra II Obs. (Nov. 23.46p3).

MPEC 2009-W80 - "18:38 UT" - 2009 WB52

K09W52B 2009 WB52 (small asteroid, H=25.7 ~25m) was discovered at 0742 UT on 22 Nov. by MLS, which observed it at Nov. 22.32-33p3, 22.38p3, and 22.47p3. The discovery was confirmed by MRO (Nov. 23.13-16p5), the Spacewatch 1.8m telescope (Nov. 23.22-23p3), ARO Westfield (Nov. 23.23-25p3), and Tenagra II Obs. (Nov. 23.34-35p3).

MPEC 2009-W79 - "18:33 UT" - 2009 WA52

K09W52A 2009 WA52 (small asteroid, Earth MOID=1.0 LD, H=26.3 ~19m) was discovered at 0734 UT on 22 Nov. by MLS, which observed it at Nov. 22.32-37p8 and 22.45-47p16. The discovery was confirmed by MRO (Nov. 23.16-17p4), ARO Westfield (Nov. 23.25-27p3), Spacewatch 1.8m (Nov. 23.26-27p3), and Tenagra II Obs. (Nov. 23.36-37p4). This object will be coming within ten lunar distances (LD) of Earth, reaching 8.2 LD on 5 Dec.

MPEC 2009-W78 - "18:28 UT" - 2009 WZ51

K09W51Z 2009 WZ51 (small asteroid, H=25.4 ~28m) was discovered at 0649 UT on 22 Nov. by MLS, which observed it at Nov. 22.28-30p4 and 22.46p4. The discovery was confirmed by MRO (Nov. 23.11-12p4), Tenagra II Obs. (Nov. 23.13p3), ARO Westfield (Nov. 23.21-22p3), Sandlot Obs. (Nov. 23.22-23p4), and Sabino Canyon Obs. (Nov. 23.25-26p3).

MPEC 2009-W77 - "18:24 UT" - 2009 WY51

K09W51Y 2009 WY51 (borderline-small, Q=4.140 AU, H=21.8 ~148m) was discovered at 0648 UT on 22 Nov. by the Spacewatch 0.9m telescope, which observed it at Nov. 22.28-32p3. The discovery was confirmed by Spacewatch 1.8m (Nov. 23.23-25p3), MRO (Nov. 23.29-31p4), and Sandlot Obs. (Nov. 23.35-36p4).

MPEC 2009-W76 - "18:16 UT" - 2009 WX51

K09W51X 2009 WX51 (risk-listed, Q=5.267 AU, Earth MOID=6.1 LD, H=20.0 ~339m) was discovered at 0559 UT on 22 Nov. by CSS, which observed it at Nov. 22.25-26p3. The discovery was confirmed by MRO (Nov. 22.28-29p4 & 23.28-29p4), Grasslands Obs. (Nov. 22.28-29p3), McCarthy Obs. (Nov. 22.32p1), ARO Westfield (Nov. 22.36-37p3), Sandlot Obs. (Nov. 22.37-39p3), and Moriyama Obs. (Nov. 23.54-55p2).

MPEC 2009-W75 - "17:43 UT" - 2009 WV51

K09W51V 2009 WV51 (small asteroid, Earth MOID=0.4 LD, H=27.1 ~13m) was discovered at 0636 UT on 23 Nov. by CSS, which observed it at Nov. 23.28-32p9. The discovery was confirmed by MRO (Nov. 23.33-35p5 & 23.39-40p4), Sandlot Obs. (Nov. 23.34p4), Tenagra II Obs. (Nov. 23.45p3), and Moriyama Obs. (Nov. 23.52-53p3 & 23.65p3). This object is now within ten lunar distances (LD) of Earth, reaching 0.7 LD on 25 Nov. (INTRUDER).

MPEC 2009-W74 - "12:41 UT" - 2009 WC26

K09W26C 2009 WC26 (H=16.9 ~1.41 km) was discovered at 0751 UT on 22 Nov. by CSS, which observed it at Nov. 22.33-40p15. The discovery was confirmed by MRO (Nov. 22.40-42p4 & 23.20-22p4), ARO Westfield (Nov. 23.28-29p3), and Sabino Canyon Obs. (Nov. 23.29p3).

<< DOU on 23 Nov. '09 >> MPEC 2009-W73 - "07:12 UT" - Daily Orbit Update

Observations of risk-listed objects
K09W07W 2009 WW7 (small asteroid, arc=3 days, H=28.9 ~6m) from Spacewatch 1.8m (Nov. 22.18p3)
K09W06K 2009 WK6 (arc=5 days, H=19.2 ~490m) from Spacewatch 1.8m (Nov. 22.29p3) and MRO (Nov. 22.37-38p3)
K09W01M 2009 WM1 (arc=5 days, H=20.4 ~282m) from ARO Westfield (Nov. 22.41-42p3), CSS (Nov. 22.50-52p4), Spacewatch 1.8m (Nov. 22.51-52p3), and MRO (Nov. 22.52-53p3)
K09W01J 2009 WJ1 (Q=4.115 AU, arc=6 days, H=21.2 ~195m) from Spacewatch 1.8m (Nov. 23.08-09p3)
Observations of recently (no longer) risk-listed objects
K09W07Y 2009 WY7 (small asteroid, q=0.257 AU, arc=3 days, H=24.0 ~54m) from ARO Westfield (Nov. 21.34-35p4)
K09W00F 2009 WF (arc=5 days, H=19.8 ~371m) from ARO Westfield (Nov. 21.42-43p5)
K09W00B 2009 WB (small asteroid, arc=6 days, H=24.2 ~49m) from ARO Westfield (Nov. 21.23-24p5) and LINEAR (Nov. 22.25-30p5)
K09V25Z 2009 VZ25 (small asteroid, Q=4.505 AU, arc=11 days, H=23.7 ~62m) from Spacewatch 1.8m (Nov. 22.25-26p3)
J98H03J 1998 HJ3 (arc=2 opp, H=18.8 ~589m) from CSS (Nov. 22.36-38p5)
Observations of small asteroids (H>22.0)
K09W25V 2009 WV25 (arc=1 day, H=23.9 ~56m) from Doc Greiner Research Obs. (DGRO) (Nov. 23.07-11p8) and Tenagra II Obs. (Nov. 23.13p3)
K09W08O 2009 WO8 (arc=1 day, H=27.2 ~12m) from ARO Westfield (Nov. 21.35-36p3)
K09W08M 2009 WM8 (arc=4 days, H=24.8 ~37m) from ARO Westfield (Nov. 21.34-36p3)
K09W07X 2009 WX7 (arc=2 days, H=27.0 ~13m) from ARO Westfield (Nov. 21.36-37p4)
K09W06X 2009 WX6 (arc=3 days, H=23.9 ~56m) from ARO Westfield (Nov. 21.22-23p3)
Observations of almost-small asteroids (21.7<H<=22.0)
K09W11D 2009 WD11 (arc=2 days, H=21.9 ~141m) from CSS (Nov. 22.36-38p3)
Observations of other objects
K09W25W 2009 WW25 (arc=67 days, H=20.7 ~245m) from MLS (Sept. 17.30-32p4), CSS (Oct. 14.13-16p4), and Tenagra II Obs. (Nov. 23.11p3)
K09W25R 2009 WR25 (arc=2 days, H=21.6 ~162m) from DGRO (Nov. 23.06p3)
K09W25P 2009 WP25 (q=0.318 AU, arc=2 days, H=19.7 ~389m) from MRO (Nov. 23.05-07p4)
K09W25N 2009 WN25 (i=71.8°, Q=6.164 AU, arc=1 day, H=18.3 ~741m) from DGRO (Nov. 23.03p15)
K09W07Z 2009 WZ7 (arc=2 days, H=19.7 ~389m) from ARO Westfield (Nov. 21.43-44p4)
K09W06O 2009 WO6 (Q=4.876 AU, arc=35 days, H=17.3 ~1.17 km) from Desert Moon Obs. (Nov. 22.13-15p3)
K09W06L 2009 WL6 (arc=5 days, H=20.3 ~295m) from Spacewatch 1.8m (Nov. 23.09-10p2)
K09W01L 2009 WL1 (arc=5 days, H=18.5 ~676m) from ARO Westfield (Nov. 21.41-42p4)
K09W00N 2009 WN (arc=5 days, H=18.8 ~589m) from ARO Westfield (Nov. 21.36p3)
K09W00A 2009 WA (arc=5 days, H=21.2 ~195m) from ARO Westfield (Nov. 21.17p4)
K09V01A 2009 VA1 (Q=4.540 AU, arc=16 days, H=18.6 ~645m) from Desert Moon Obs. (Nov. 22.08-11p3)
K09V00W 2009 VW (arc=12 days, H=21.6 ~162m) from ARO Westfield (Nov. 21.24-25p5)
K09U28K 2009 UK28 (arc=27 days, H=19.7 ~389m) from LINEAR (Nov. 22.25-30p4)
K09U19E 2009 UE19 (Q=4.051 AU, arc=29 days, H=20.5 ~269m) from ARO Westfield (Nov. 21.32-33p5) and CSS (Nov. 22.23-25p4)
K09U03M 2009 UM3 (Q=4.350 AU, arc=33 days, H=17.9 ~891m) from ARO Westfield (Nov. 21.28-29p3)
K09U00N 2009 UN (Q=4.515 AU, arc=36 days, H=21.4 ~178m) from ARO Westfield (Nov. 21.39-40p3)
K09S19T 2009 ST19 (arc=68 days, H=18.3 ~741m) from Santa Maria de Montmagastrell Obs. (Nov. 22.89-90p3)
K09S17V 2009 SV17 (Q=4.289 AU, arc=64 days, H=19.6 ~407m) from Spacewatch 1.8m (Nov. 23.10-11p3)
K09S02F 2009 SF2 (arc=65 days, H=20.8 ~234m) from McCarthy Obs. (Nov. 22.25-26p2) and CSS (Nov. 22.30-32p3)
K09S01X 2009 SX1 (arc=65 days, H=18.9 ~562m) from McCarthy Obs. (Nov. 22.39p3) and Desert Moon Obs. (Nov. 22.46-48p3)
K09R00N 2009 RN (Q=4.584 AU, arc=72 days, H=19.9 ~355m) from CSS (Nov. 22.36-38p5)
K09Q08L 2009 QL8 (arc=94 days, H=19.5 ~426m) from Desert Moon Obs. (Nov. 22.51-52p2)
K08W59B 2008 WB59 (arc=2 opp, H=19.4 ~446m) from McCarthy Obs. (Nov. 23.10-12p3)
K07U03R 2007 UR3 (arc=3 opp, H=21.2 ~195m) from CSS (Nov. 22.37-38p4)
K06H51Z 2006 HZ51 (arc=3 opp, H=18.5 ~676m) from MLS (Nov. 22.34-36p4)
K05R06Q 2005 RQ6 (arc=2 opp, H=18.8 ~589m) from CSS (Nov. 22.30-31p3) and El Guijo Obs. (Nov. 22.98-00p3)
K04X50D 2004 XD50 (arc=2 opp, H=18.5 ~676m) from Desert Moon Obs. (Nov. 22.38-43p3)
K04T18B 2004 TB18 (arc=3 opp, H=17.6 ~1.02 km) from McCarthy Obs. (Nov. 22.37-38p4)
K03W21R 2003 WR21 (arc=4 opp, H=19.6 ~407m) from McCarthy Obs. (Nov. 22.29-30p3)
K03Q05H 2003 QH5 (arc=2 opp, H=20.1 ~323m) from Spacewatch 1.8m (Nov. 22.33-35p3 at V=22.7)
K02V85T 2002 VT85 (arc=5 opp, H=18.0 ~851m) from CSS (Nov. 22.36-38p4)
K01U16W 2001 UW16 (i=37.6°, arc=3 opp, H=19.5 ~426m) from CSS (Nov. 22.20-23p5)
L7807 217807 2000 XK44 from CSS (Nov. 22.23-25p4)
H7651 177651 2004 XM14 from CSS (Nov. 22.44-46p5)
G2273 162273 1999 VL12 from Spacewatch 1.8m (Nov. 22.22-23p3)
F3271 153271 2001 CL42 from CSS (Nov. 22.30-32p3)
D8852 138852 2000 WN10 from CSS (Nov. 22.28-29p3)
23714 23714 1998 EC3 from MLS (Nov. 22.42-44p4)
22753 22753 1998 WT from CSS (Nov. 22.36-38p4)
09950 9950 ESA (1990 VB) from Desert Moon Obs. (Nov. 22.05-06p3)
06239 6239 Minos (1989 QF) from LINEAR (Nov. 22.25-30p4)
04015 4015 Wilson-Harrington (1979 VA) from Balzaretto Obs. (Nov. 21.75-76p4), Nazaret Obs. (Nov. 21.81-88p3 & 22.83-90p3), CSS (Nov. 22.06-08p4), and Malaga Obs. (Nov. 22.90-92p3)

MPEC 2009-W72 - "02:17 UT" - 2009 WW25

K09W25W 2009 WW25 (H=20.7 ~245m) was discovered at 0425 UT on 22 Nov. by CSS, which observed it at Nov. 22.12-14p3 and 22.18-19p4. The discovery was confirmed by MRO (Nov. 22.21-22p4 & 23.05-07p4), Grasslands Obs. (Nov. 22.21p3), ARO Westfield (Nov. 22.22p2), Jaen Obs. (Nov. 22.78-79p3), and McCarthy Obs. (Nov. 23.03p2).

MPEC 2009-W71 - "02:08 UT" - 2009 WV25

K09W25V 2009 WV25 (small asteroid, Earth MOID=2.0 LD, H=23.9 ~56m) was discovered at 0628 UT on 22 Nov. by CSS, which observed it at Nov. 22.27-28p3. The discovery was confirmed by LINEAR (Nov. 22.25-30p4), MLS (Nov. 22.32-36p8), McCarthy Obs. (Nov. 22.42-43p2), Grasslands Obs. (Nov. 22.47p3), Jaen Obs. (Nov. 22.86-87p3), and Paus Obs. (Nov. 22.87-88p3). This object will be coming within ten lunar distances (LD) of Earth, reaching 3.1 LD on 2 Dec.

MPEC 2009-W70 - "02:01 UT" - 2009 WU25

K09W25U 2009 WU25 (small asteroid, Earth MOID=4.3 LD, H=25.0 ~34m) was discovered at 0728 UT on 21 Nov. by LINEAR, which observed it at Nov. 21.31-35p4. The discovery was confirmed by Gaisberg Obs. (Nov. 21.96-05p17), Great Shefford Obs. (Nov. 22.07-08p2), McCarthy Obs. (Nov. 22.19p2), Grasslands Obs. (Nov. 22.25p3), Spacewatch 1.8m (Nov. 22.32-33p3), MRO (Nov. 22.32-34p4), ARO Westfield (Nov. 22.36-37p3), and Sandlot Obs. (Nov. 22.43-44p3). This object was within ten lunar distances (LD) of Earth, reaching 4.9 LD on 16 Nov.

MPEC 2009-W69 - "01:58 UT" - 2009 WT25

K09W25T 2009 WT25 (small asteroid, H=23.0 ~85m) was discovered at 0637 UT on 21 Nov. by Spacewatch 0.9m, which observed it at Nov. 21.28-31p3. The discovery was confirmed by MRO (Nov. 21.45-46p4 & 22.26-28p4), Spacewatch 1.8m (Nov. 21.51-52p3 & 22.42-43p3), and MLS (Nov. 22.27-28p3).

MPEC 2009-W68 - "01:52 UT" - 2009 WS25

K09W25S 2009 WS25 (small asteroid, H=25.1 ~32m) was discovered at 0524 UT on 21 Nov. by MLS, which observed it at Nov. 21.23-24p4, 21.29p4, 21.34p3, 22.29-30p3, and 22.46p3. The discovery was confirmed by MRO (Nov. 21.30-31p4 & 22.15-16p4), ARO Westfield (Nov. 21.31-32p3 & 22.24-25p3), Sabino Canyon Obs. (Nov. 21.37-39p2), Tenagra II Obs. (Nov. 21.42-43p3 & 22.11-12p3), Schiaparelli Obs. (Nov. 21.84-88p2), and Spacewatch 1.8m (Nov. 22.21p3).

MPEC 2009-W67 - "01:42 UT" - 2009 WR25

K09W25R 2009 WR25 (H=21.6 ~162m) was discovered at 0431 UT on 21 Nov. by LINEAR, which observed it at Nov. 21.19-21p3. The discovery was confirmed by Great Shefford Obs. (Nov. 21.93-94p5 & 22.03-05p4), McCarthy Obs. (Nov. 21.96-97p5 & 22.09p3), Schiaparelli Obs. (Nov. 21.97p5), MRO (Nov. 22.13-14p4), Grasslands Obs. (Nov. 22.15-16p3), CEAMIG-REA (Nov. 22.17p3), Spacewatch 1.8m (Nov. 22.22-23p3), Tenagra II Obs. (Nov. 22.25p3), ARO Westfield (Nov. 22.26p3), and Jaen Obs. (Nov. 22.88-89p3).

MPEC 2009-W66 - "01:39 UT" - 2009 WQ25

K09W25Q 2009 WQ25 (risk-listed, Q=4.174 AU, Earth MOID=0.4 LD, H=23.9 ~56m) was discovered at 0354 UT on 21 Nov. by MLS, which observed it at Nov. 21.16-18p4 and 21.29-30p4. The discovery was confirmed by MRO (Nov. 21.30-31p4 & 22.22-24p4), Spacewatch 1.8m (Nov. 22.19-20p3), and ARO Westfield (Nov. 22.19-21p2).

MPEC 2009-W65 - "01:34 UT" - 2009 WP25

K09W25P 2009 WP25 (q=0.318 AU, H=19.7 ~389m) was discovered at 0257 UT on 21 Nov. by CSS, which observed it at Nov. 21.12-15p4. The discovery was confirmed by MRO (Nov. 21.19-20p4 & 22.08-09p4), McCarthy Obs. (Nov. 21.23-26p3 & 21.98p3), Sabino Canyon Obs. (Nov. 21.36-37p3), Engelhardt Obs. Zelenchukskaya Station (Nov. 21.63-64p3), Modra Obs. (Nov. 21.70p3), Schiaparelli Obs. (Nov. 21.73-74p3), ARO Westfield (Nov. 22.02p5), Tenagra II Obs. (Nov. 22.08-09p3), and DGRO (Nov. 23.04p3).

MPEC 2009-W64 - "00:36 UT" - 2009 WN25

K09W25N 2009 WN25 (i=71.8°, Q=6.115 AU, H=18.1 ~812m) was discovered at 0334 UT on 22 Nov. by CSS, which observed it at Nov. 22.15-17p4. The discovery was confirmed by MRO (Nov. 22.19-21p5), Cristovao Jacques via RAS Obs. Mayhill (Nov. 22.20p3), Grasslands Obs. (Nov. 22.22p3), H. Sato via RAS Obs. Mayhill (Nov. 22.23p2), ARO Westfield (Nov. 22.23p5), Guidestar Obs. (Nov. 22.74-76p3), and McCarthy Obs. (Nov. 23.00-01p5).

Observers on 23 November '09

A total of 31 observing facilities appeared in this day's MPECs.

Code	Observer / observatory
`H21`	Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 29 in MPECs 2009-W64, 2009-W65, 2009-W66, 2009-W67, 2009-W68, 2009-W70, 2009-W72, 2009-W73, 2009-W74, 2009-W76, 2009-W78, 2009-W79, 2009-W80 & 2009-W81 -- 2009 WZ7, 2009 WZ51, 2009 WY7, 2009 WX7, 2009 WX6, 2009 WX51, 2009 WW25, 2009 WU25, 2009 WS25, 2009 WR25, 2009 WQ25, 2009 WP25, 2009 WO8, 2009 WN25, 2009 WN, 2009 WM8, 2009 WM1, 2009 WL1, 2009 WF, 2009 WD52, 2009 WC26, 2009 WB52, 2009 WB, 2009 WA52, 2009 WA, 2009 VW, 2009 UN, 2009 UM3, 2009 UE19
`A81`	Balzaretto Obs. in Italy, 1 in MPEC 2009-W73 -- 4015
`I77`	CEAMIG-REA in Brazil, 1 in MPEC 2009-W67 -- 2009 WR25
`703`	Catalina Sky Survey (CSS) in Arizona, 24 in MPECs 2009-W64, 2009-W65, 2009-W71, 2009-W72, 2009-W73, 2009-W74, 2009-W75, 2009-W76 & 2009-W81 -- 2009 WX51, 2009 WW25, 2009 WV51, 2009 WV25, 2009 WP25, 2009 WN25, 2009 WM1, 2009 WD52, 2009 WD11, 2009 WC26, 2009 UE19, 2009 SF2, 2009 RN, 2007 UR3, 2005 RQ6, 2002 VT85, 2001 UW16, 1998 HJ3, 22753, 217807, 177651, 153271, 138852, 4015
`448`	Desert Moon Obs. in New Mexico, 6 in MPEC 2009-W73 -- 2009 WO6, 2009 VA1, 2009 SX1, 2009 QL8, 2004 XD50, 9950
`H26`	Doc Greiner Research Obs. (DGRO) in Wisconsin, 4 in MPECs 2009-W65 & 2009-W73 -- 2009 WV25, 2009 WR25, 2009 WP25, 2009 WN25
`J27`	El Guijo Obs. in Spain, 1 in MPEC 2009-W73 -- 2005 RQ6
`114`	Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2009-W65 -- 2009 WP25
`B21`	Gaisberg Obs. in Austria, 1 in MPEC 2009-W70 -- 2009 WU25
`651`	Grasslands Obs. in Arizona, 6 in MPECs 2009-W64, 2009-W67, 2009-W70, 2009-W71, 2009-W72 & 2009-W76 -- 2009 WX51, 2009 WW25, 2009 WV25, 2009 WU25, 2009 WR25, 2009 WN25
`J95`	Great Shefford Obs. in England, 2 in MPECs 2009-W67 & 2009-W70 -- 2009 WU25, 2009 WR25
`A17`	Guidestar Obs. in Germany, 1 in MPEC 2009-W64 -- 2009 WN25
`J28`	Jaen Obs. in Spain, 3 in MPECs 2009-W67, 2009-W71 & 2009-W72 -- 2009 WW25, 2009 WV25, 2009 WR25
`704`	LINEAR in New Mexico, 6 in MPECs 2009-W67, 2009-W70, 2009-W71 & 2009-W73 -- 2009 WV25, 2009 WU25, 2009 WR25, 2009 WB, 2009 UK28, 6239
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 19 in MPECs 2009-W64, 2009-W65, 2009-W66, 2009-W67, 2009-W68, 2009-W69, 2009-W70, 2009-W72, 2009-W73, 2009-W74, 2009-W75, 2009-W76, 2009-W77, 2009-W78, 2009-W79, 2009-W80, 2009-W81 & 2009-W83 -- 2009 WZ51, 2009 WY51, 2009 WX51, 2009 WW25, 2009 WV51, 2009 WU25, 2009 WT25, 2009 WS25, 2009 WR25, 2009 WQ52, 2009 WQ25, 2009 WP25, 2009 WN25, 2009 WM1, 2009 WK6, 2009 WD52, 2009 WC26, 2009 WB52, 2009 WA52
`J40`	Malaga Obs. in Spain, 1 in MPEC 2009-W73 -- 4015
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2009-W82 -- 2008 FT6
`932`	McCarthy Obs. in Connecticut, 13 in MPECs 2009-W64, 2009-W65, 2009-W67, 2009-W70, 2009-W71, 2009-W72, 2009-W73, 2009-W76 & 2009-W81 -- 2009 WX51, 2009 WW25, 2009 WV25, 2009 WU25, 2009 WR25, 2009 WP25, 2009 WN25, 2009 WD52, 2009 SX1, 2009 SF2, 2008 WB59, 2004 TB18, 2003 WR21
`118`	Modra Obs. in Slovakia, 1 in MPEC 2009-W65 -- 2009 WP25
`900`	Moriyama Obs. in Japan, 2 in MPECs 2009-W75 & 2009-W76 -- 2009 WX51, 2009 WV51
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 14 in MPECs 2009-W66, 2009-W68, 2009-W69, 2009-W71, 2009-W73, 2009-W78, 2009-W79, 2009-W80, 2009-W81, 2009-W83, 2009-W84 & 2009-W85 -- 2009 WZ51, 2009 WW25, 2009 WV25, 2009 WT25, 2009 WS52, 2009 WS25, 2009 WR52, 2009 WQ52, 2009 WQ25, 2009 WD52, 2009 WB52, 2009 WA52, 2006 HZ51, 23714
`J47`	Nazaret Obs. in Spain, 1 in MPEC 2009-W73 -- 4015
`B49`	Paus Obs. in Spain, 1 in MPEC 2009-W71 -- 2009 WV25
`H06.`	Cristovao Jacques in Brazil via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-W64 -- 2009 WN25
`H06\|`	H. Sato in Japan via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-W64 -- 2009 WN25
`854`	Sabino Canyon Obs. in Arizona, 5 in MPECs 2009-W65, 2009-W68, 2009-W74, 2009-W78 & 2009-W81 -- 2009 WZ51, 2009 WS25, 2009 WP25, 2009 WD52, 2009 WC26
`H36`	Sandlot Obs. in Kansas, 6 in MPECs 2009-W70, 2009-W75, 2009-W76, 2009-W77, 2009-W78 & 2009-W81 -- 2009 WZ51, 2009 WY51, 2009 WX51, 2009 WV51, 2009 WU25, 2009 WD52
`B74`	Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2009-W73 -- 2009 ST19
`204`	Schiaparelli Obs. in Italy, 3 in MPECs 2009-W65, 2009-W67 & 2009-W68 -- 2009 WS25, 2009 WR25, 2009 WP25
`691`	Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2009-W69 & 2009-W77 -- 2009 WY51, 2009 WT25
`291`	Spacewatch 1.8m telescope in Arizona, 17 in MPECs 2009-W66, 2009-W67, 2009-W68, 2009-W69, 2009-W70, 2009-W73, 2009-W77, 2009-W79 & 2009-W80 -- 2009 WY51, 2009 WW7, 2009 WU25, 2009 WT25, 2009 WS25, 2009 WR25, 2009 WQ25, 2009 WM1, 2009 WL6, 2009 WK6, 2009 WJ1, 2009 WB52, 2009 WA52, 2009 VZ25, 2009 SV17, 2003 QH5, 162273
`926`	Tenagra II Obs. in Arizona, 13 in MPECs 2009-W65, 2009-W67, 2009-W68, 2009-W73, 2009-W75, 2009-W78, 2009-W79, 2009-W80, 2009-W81, 2009-W83, 2009-W84 & 2009-W85 -- 2009 WZ51, 2009 WW25, 2009 WV51, 2009 WV25, 2009 WS52, 2009 WS25, 2009 WR52, 2009 WR25, 2009 WQ52, 2009 WP25, 2009 WD52, 2009 WB52, 2009 WA52

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

Impact Risk Monitoring on 23 November '09

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2309 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 WR52	JPL Sentry	2359	2027-2109	309	1.2e-05	-6.68	-7.31	0	JPL: "Analysis based on 11 observations spanning .18015 days (2009-Nov-23.21917 to 2009-Nov-23.39932)." Diameter approximately 0.006 km. from mean, weighted H=28.7.

2009 WQ52	JPL Sentry	2309	2037-2098	10	9.3e-07	-7.37	-7.61	0	JPL: "Analysis based on 15 observations spanning .18531 days (2009-Nov-23.19879 to 2009-Nov-23.3841)." Diameter approximately 0.008 km. from mean, weighted H=28.1.

2009 WX51	JPL Sentry	2031	2016-2108	143	2.0e-07	-3.89	-4.58	0	JPL: "Analysis based on 23 observations spanning 1.3054 days (2009-Nov-22.24934 to 2009-Nov-23.55478)." Diameter approximately 0.332 km. from mean, weighted H=20.0.

2009 WQ25	NEODyS	1522	2083	1	6.27e-09	-7.61	-7.61	0	NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2009/11/21.164 to 2009/11/22.246."
2009 WQ25	JPL Sentry	0523	2083	1	1.2e-10	-9.38	-9.38	0	JPL: "Analysis based on 21 observations spanning 1.0821 days (2009-Nov-21.16281 to 2009-Nov-22.24493)." Diameter approximately 0.054 km. from mean, weighted H=24.0.

2009 WW7	JPL Sentry	1522	2050-2108	26	3.7e-05	-6.63	-7.06	0	JPL: "Analysis based on 28 observations spanning 2.9463 days (2009-Nov-19.23811 to 2009-Nov-22.18436)." Diameter approximately 0.006 km. from mean, weighted H=28.9.
2009 WW7	NEODyS	1522	2050-2089	13	1.39e-05	-6.99	-7.09	0	NEODyS: "Based on 29 optical observations (of which 1 are rejected as outliers) from 2009/11/19.239 to 2009/11/22.185."

2009 WK6	NEODyS	1522	R E M O V E D						-

2009 WM1	JPL Sentry	1812	2018-2106	103	1.5e-04	-1.05	-1.33	1	JPL: "Analysis based on 46 observations spanning 5.0667 days (2009-Nov-17.4641 to 2009-Nov-22.53083)." Diameter approximately 0.280 km. from mean, weighted H=20.4.
2009 WM1	NEODyS	1522	2018-2090	104	1.38e-04	-1.07	-1.36	1	NEODyS: "Based on 46 optical observations (of which 0 are rejected as outliers) from 2009/11/17.465 to 2009/11/22.532. NOTE: The Virtual Impactors in 2018/11/22.954, 2027/11/23.215 and 2032/11/22.403 ... are rated as Torino Scale 1."

2009 WJ1	JPL Sentry	1522	2091	1	1.2e-10	-8.07	-8.07	0	JPL: "Analysis based on 37 observations spanning 5.9793 days (2009-Nov-17.10881 to 2009-Nov-23.08808)." Diameter approximately 0.210 km. from mean, weighted H=21.0.
2009 WJ1	NEODyS	1522	2057-2080	3	1.22e-08	-6.08	-6.20	0	NEODyS: "Based on 37 optical observations (of which 0 are rejected as outliers) from 2009/11/17.110 to 2009/11/23.089."

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 23 November '09

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

2359	Noted that JPL Sentry has posted 2009 WR52 as an impact risk - see above
2309	Noted that JPL Sentry has posted 2009 WQ52 as an impact risk - see above
2101	Grabbed MPEC 2009-W83 - 2009 WQ52 - see above Grabbed MPEC 2009-W84 - 2009 WR52 - see above Grabbed MPEC 2009-W85 - 2009 WS52 - see above
2031	Noted that JPL Sentry has posted 2009 WX51 as an impact risk - see above Grabbed MPEC 2009-W82 - 2008 FT6 - see above
1915	Grabbed MPEC 2009-W80 - 2009 WB52 - see above Grabbed MPEC 2009-W81 - 2009 WD52 - see above
1839	Grabbed MPEC 2009-W76 - 2009 WX51 - see above Grabbed MPEC 2009-W77 - 2009 WY51 - see above Grabbed MPEC 2009-W78 - 2009 WZ51 - see above Grabbed MPEC 2009-W79 - 2009 WA52 - see above
1812	Noted that JPL Sentry has updated its 2009 WM1 risk assessment - see above
1751	Grabbed MPEC 2009-W75 - 2009 WV51 - see above
1522	Noted that JPL Sentry has updated its 2009 WJ1 risk assessment - see above Noted that NEODyS has updated its 2009 WJ1 risk assessment - see above Noted that NEODyS has removed 2009 WK6 as an impact risk - see above Noted that NEODyS has updated its 2009 WM1 risk assessment - see above Noted that NEODyS has posted 2009 WQ25 as an impact risk - see above Noted that JPL Sentry has updated its 2009 WW7 risk assessment - see above Noted that NEODyS has updated its 2009 WW7 risk assessment - see above Grabbed MPEC 2009-W73 - Daily Orbit Update - see above Grabbed MPEC 2009-W74 - 2009 WC26 - see above
0523	Noted that JPL Sentry has posted 2009 WQ25 as an impact risk - see above Grabbed MPEC 2009-W67 - 2009 WR25 - see above Grabbed MPEC 2009-W68 - 2009 WS25 - see above Grabbed MPEC 2009-W69 - 2009 WT25 - see above Grabbed MPEC 2009-W70 - 2009 WU25 - see above Grabbed MPEC 2009-W71 - 2009 WV25 - see above Grabbed MPEC 2009-W72 - 2009 WW25 - see above
0141	Grabbed MPEC 2009-W65 - 2009 WP25 - see above Grabbed MPEC 2009-W66 - 2009 WQ25 - see above
0037	Grabbed MPEC 2009-W64 - 2009 WN25 - see above

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