2009-01-30 Tracking News

Contents on 30 January '09

IAU Minor Planet Center
- NEOCP Activity -- six listings: 2 new, 4 updated
- New MPECs -- sixteen MPECs
Observers -- 41 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
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 30 January '09

The MPC's NEO Confirmation Page has 6 listings: 2 new, 4 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and four updated listings. Of these, three were "one nighters." So far The Tracking News has counted a total of 28 objects listed on the NEOCP at some point today.

New MPECs on 30 January '09

Minor Planet Electronic Circulars

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

MPEC 2009-B72 time-stamped "07:06 UT" - Daily Orbit Update - see below
MPEC 2009-B73 time-stamped "16:17 UT" - Comet P/2008 WZ96 (LINEAR) - see below
MPEC 2009-B74 time-stamped "22:28 UT" - 2009 BC58 - see below
MPEC 2009-B75 time-stamped "22:31 UT" - 2009 BD58 - see below
MPEC 2009-B76 time-stamped "22:34 UT" - 2009 BE58 - see below
MPEC 2009-B77 time-stamped "22:38 UT" - 2009 BF58 - see below
MPEC 2009-B78 time-stamped "22:40 UT" - 2009 BG58 - see below
MPEC 2009-B79 time-stamped "22:43 UT" - 2009 BH58 - see below
MPEC 2009-B80 time-stamped "22:49 UT" - 2009 BJ58 - see below
MPEC 2009-B81 time-stamped "22:53 UT" - 2009 BK58 - see below
MPEC 2009-B82 time-stamped "22:55 UT" - 2009 BL58 - see below
MPEC 2009-B83 time-stamped "22:58 UT" - 2009 BM58 - see below
MPEC 2009-B84 time-stamped "23:00 UT" - 2009 BN58 - see below
MPEC 2009-B85 time-stamped "23:04 UT" - 2009 BO58 - see below
MPEC 2009-B86 time-stamped "23:07 UT" - 2009 BP58 - see below
MPEC 2009-B87 time-stamped "23:14 UT" - 2008 CG

MPEC 2009-B87 - "23:14 UT" - 2008 CG

K08C00G 2008 CG (borderline-small, H=22.0 ~135m) from Calar Alto Obs. (Jan. 29.88p3 & 30.80p3)

MPEC 2009-B86 - "23:07 UT" - 2009 BP58

K09B58P 2009 BP58 (H=18.6 ~645m) was discovered at 0913 UT on 29 Jan. by the Catalina Sky Survey (CSS), which observed it at Jan. 29.38-47p12. The discovery was confirmed by Bergen-Enkheim Obs. (Jan. 29.95-98p3), Calar Alto Obs. (Jan. 29.96-97p3), Starkenburg Obs. (Jan. 29.97p2), Schiaparelli Obs. (Jan. 30.17-20p2), Sabino Canyon Obs. (Jan. 30.30-32p3), and the Mt. Lemmon Survey (MLS) (Jan. 30.36-39p4).

MPEC 2009-B85 - "23:04 UT" - 2009 BO58

K09B58O 2009 BO58 (borderline-small, H=21.9 ~141m) was discovered at 0830 UT on 29 Jan. by MLS, which observed it at Jan. 29.35-38p4, 29.43-45p4, and 30.35-39p4. The discovery was confirmed by Sandlot Obs. (Jan. 29.44p3), Tenagra II Obs. (Jan. 29.54-55p3), Starkenburg Obs. (Jan. 29.94p2), Libbiano Obs. (Jan. 29.96-01p3), Saint-Barthelemy Obs. (Jan. 30.06-08p4), Schiaparelli Obs. (Jan. 30.08-10p3), Calar Alto Obs. (Jan. 30.10p3), and Sabino Canyon Obs. (Jan. 30.28-29p3).

MPEC 2009-B84 - "23:00 UT" - 2009 BN58

K09B58N 2009 BN58 (small asteroid, H=25.9 ~22m) was discovered at 0823 UT on 29 Jan. by MLS, which observed it at Jan. 29.35-37p4, 29.43-45p4, and 30.33-34p3. The discovery was confirmed by Calar Alto Obs. (Jan. 30.07-08p3).

MPEC 2009-B83 - "22:58 UT" - 2009 BM58

K09B58M 2009 BM58 (small asteroid, Q=4.051 AU, H=24.3 ~47m) was discovered at 0658 UT on 29 Jan. by MLS, which observed it at Jan. 29.29-37p7 and 30.33-34p4. The discovery was confirmed by Grasslands Obs. (Jan. 29.38p3), Sandlot Obs. (Jan. 29.41-42p3), Calar Alto Obs. (Jan. 29.84-85p2), Starkenburg Obs. (Jan. 29.88-89p2), Schiaparelli Obs. (Jan. 30.03-05p3), and Saint-Barthelemy Obs. (Jan. 30.09-11p3).

MPEC 2009-B82 - "22:55 UT" - 2009 BL58

K09B58L 2009 BL58 (small asteroid, Earth MOID=2.6 LD, H=24.5 ~43m) was discovered at 0640 UT on 29 Jan. by CSS, which observed it at Jan. 29.28-34p8. The discovery was confirmed by Grasslands Obs. (Jan. 29.37p3), MLS (Jan. 29.41-43p8 & 30.27-29p4), Calar Alto Obs. (Jan. 29.81p3), Bergen-Enkheim Obs. (Jan. 29.86-89p3), Schiaparelli Obs. (Jan. 30.02-06p3), Astronomical Research Obs. (ARO) (Jan. 30.28-29p3), and Sandlot Obs. (Jan. 30.31p3). This object will be coming within ten lunar distances (LD) of Earth, reaching 4.9 LD on 11 Feb.

MPEC 2009-B81 - "22:53 UT" - 2009 BK58

K09B58K 2009 BK58 (small asteroid, Q=4.127 AU, Earth MOID=1.7 LD, H=25.8 ~23m) was discovered at 0500 UT on 29 Jan. by CSS, which observed it at Jan. 29.21-25p8. The discovery was confirmed by Magdalena Ridge Obs. (MRO) (Jan. 29.27-28p4), Grasslands Obs. (Jan. 29.31p3), Calar Alto Obs. (Jan. 29.79p3), Starkenburg Obs. (Jan. 29.82-84p3), Libbiano Obs. (Jan. 29.86-89p3), Schiaparelli Obs. (Jan. 29.97-98p3), Desert Moon Obs. (Jan. 30.12-14p3), MLS (Jan. 30.14p4), Grove Creek Obs. (Jan. 30.45-46p3), San Marcello Pistoiese Obs. (Jan. 30.74-75p3), and Sormano Obs. (Jan. 30.89-90p3). This object is now within ten lunar distances (LD) of Earth, reaching 1.9 LD on 3 Feb.

MPEC 2009-B80 - "22:49 UT" - 2009 BJ58

K09B58J 2009 BJ58 (Earth MOID=2.1 LD, H=19.0 ~537m) was discovered at 0321 UT on 29 Jan. by CSS, which observed it at Jan. 29.14-20p8. The discovery was confirmed by MRO (Jan. 29.23-25p3), Grasslands Obs. (Jan. 29.30p3), Calar Alto Obs. (Jan. 29.80p3), Schiaparelli Obs. (Jan. 29.95-96p2), Desert Moon Obs. (Jan. 30.07-10p3), MLS (Jan. 30.10-11p4), program code 8 via Faulkes Telescope North (Jan. 30.23-24p4), Jim Bedient via Faulkes Telescope North (Jan. 30.31-33p3), and Grove Creek Obs. (Jan. 30.48-49p3).

MPEC 2009-B79 - "22:43 UT" - 2009 BH58

K09B58H 2009 BH58 (small asteroid, Earth MOID=3.9 LD, H=23.5 ~68m) was discovered at 1422 UT on 28 Jan. by the Siding Spring Survey (SSS), which observed it at Jan. 28.60-63p4, 28.67-68p2, 28.73p2, 28.77p1, 29.60p2, 29.77p1, and 30.73p2. The discovery was confirmed by Grasslands Obs. (Jan. 29.39p3), Tenagra II Obs. (Jan. 29.53p2), Saint-Barthelemy Obs. (Jan. 30.13-14p4), and Calar Alto Obs. (Jan. 30.19p3).

MPEC 2009-B78 - "22:40 UT" - 2009 BG58

K09B58G 2009 BG58 (small asteroid, Earth MOID=5.6 LD, H=26.0 ~21m) was discovered at 0848 UT on 28 Jan. by CSS, which observed it at Jan. 28.37-42p8, 28.48p4, and 29.33-35p4. The discovery was confirmed by MLS (Jan. 29.29p4), MRO (Jan. 29.30-34p4), the Spacewatch 1.8m telescope (Jan. 29.30-31p3), Grasslands Obs. (Jan. 29.34-35p3), Sandlot Obs. (Jan. 29.43p3), Tenagra II Obs. (Jan. 29.53-54p3), Starkenburg Obs. (Jan. 29.91p2), Calar Alto Obs. (Jan. 30.05-06p3), and Schiaparelli Obs. (Jan. 30.12-13p3). This object was within ten lunar distances (LD) of Earth, reaching 9.8 LD on 29 Jan.

MPEC 2009-B77 - "22:38 UT" - 2009 BF58

K09B58F 2009 BF58 (small asteroid, Earth MOID=0.3 LD, H=27.3 ~12m) was discovered at 0618 UT on 28 Jan. by CSS, which observed it at Jan. 28.26-34p11 and 28.39p4. The discovery was confirmed by MRO (Jan. 29.21-22p4), Grasslands Obs. (Jan. 29.32-33p3), Sandlot Obs. (Jan. 29.38-39p2), Calar Alto Obs. (Jan. 30.09p3), and MLS (Jan. 30.33-34p3). This object was within ten lunar distances (LD) of Earth, reaching 9.9 LD on 29 Jan.

MPEC 2009-B76 - "22:34 UT" - 2009 BE58

K09B58E 2009 BE58 (Earth MOID=1.6 LD, H=21.5 ~170m) was discovered at 0847 UT on 27 Jan. by LINEAR, which observed it at Jan. 27.37-42p5 and 28.39-44p5. The discovery was confirmed by Saint-Barthelemy Obs. (Jan. 27.00-01p3), Sabino Canyon Obs. (Jan. 28.28-30p3), Spacewatch 1.8m (Jan. 28.30-31p3), Jim Young via Table Mtn. Obs. (Jan. 28.36-37p4), Ernesto Guido via RAS Obs. Mayhill (Jan. 28.44-46p3), Sandlot Obs. (Jan. 29.45p3), Tenagra II Obs. (Jan. 29.55p3), Calar Alto Obs. (Jan. 30.09p3), Schiaparelli Obs. (Jan. 30.10-15p4), Rodeo Obs. (Jan. 30.34p3), and MLS (Jan. 30.36-39p4). This object will be coming within ten lunar distances (LD) of Earth, reaching 8.6 LD on 10 Feb.

MPEC 2009-B75 - "22:31 UT" - 2009 BD58

K09B58D 2009 BD58 (small asteroid, H=22.1 ~129m) was discovered at 0710 UT on 27 Jan. by LINEAR, which observed it at Jan. 27.30-35p5, 28.27-32p10, and 29.27-31p4. The discovery was confirmed by CSS (Jan. 18.29-31p3), Saint-Barthelemy Obs. (Jan. 27.94-96p4), Spacewatch 1.8m (Jan. 28.19-20p3), Sabino Canyon Obs. (Jan. 28.22p3), Young/Table Mtn. (Jan. 28.32-33p4), Engelhardt Obs. Zelenchukskaya Station (Jan. 28.77p4), Capannoli Obs. (Jan. 28.95-96p3), Monte Baldo Obs. (Jan. 28.98-99p3), ARO (Jan. 29.08-09p3), MRO (Jan. 29.15-16p5), Chabot Obs. (Jan. 29.24-25p3), Sandlot Obs. (Jan. 29.33p5), Guidestar Obs. (Jan. 29.74-76p3), Starkenburg Obs. (Jan. 29.77-78p3), San Marcello Pistoiese Obs. (Jan. 29.78p3), Calar Alto Obs. (Jan. 29.82p3), New Millennium Obs. (Jan. 29.92p4), Siegen Obs. (Jan. 29.97-98p2), Schiaparelli Obs. (Jan. 29.99-01p4), Cordell-Lorenz Obs. (Jan. 30.10-12p7), and MLS (Jan. 30.27-29p4).

MPEC 2009-B74 - "22:28 UT" - 2009 BC58

K09B58C 2009 BC58 (H=18.6 ~645m) was discovered at 1005 UT on 25 Jan. by the Spacewatch 0.9m telescope, which observed it at Jan. 25.42-45p3. The discovery was confirmed by Spacewatch 1.8m (Jan. 25.49p3, 26.28-30p3, 28.28-29p3, 29.29p3 & 30.23-24p3), Calar Alto Obs. (Jan. 30.05p3), and MLS (Jan. 30.35-39p4).

MPEC 2009-B73 - "16:17 UT" - Comet P/2008 WZ96 (LINEAR)

PK08W96Z P/2008 WZ96 (LINEAR) (q=1.646 AU, Q=5.060 AU, TP=2009 Jan. 23.94244 TT) from Petit Jean Mtn. South Obs. (PJMSO) (Jan. 14.03-04p7, 17.07p6, 20.05-07p8 & 22.03-04p7), Schiaparelli Obs. (Jan. 27.73-78p3), Table Mtn. Obs. (Jan. 29.10-14p4), and Sabino Canyon Obs. (Jan. 30.10-12p3)

<< DOU on 30 Jan. '09 >> MPEC 2009-B72 - "07:06 UT" - Daily Orbit Update

Observations of risk-listed objects
K09B05R 2009 BR5 (almost small, arc=9 days, H=22.0 ~135m) from Spacewatch 1.8m (Jan. 29.34-35p3)
Observations of recently (no longer) risk-listed objects
K09B05U 2009 BU5 (arc=8 days, H=21.6 ~162m) from ARO (Jan. 29.10-11p3)
K09B05P 2009 BP5 (small asteroid, arc=9 days, H=22.7 ~98m) from Spacewatch 1.8m (Jan. 29.33p2) and CSS (Jan. 29.40-42p3)
K09B02E 2009 BE2 (arc=13 days, H=18.9 ~562m) from Spacewatch 1.8m (Jan. 29.26-27p3)
K08Y29E 2008 YE29 (Q=4.542 AU, arc=30 days, H=20.3 ~295m) from ARO (Jan. 29.02-03p3) and CSS (Jan. 29.19-20p3)
K05Y03R 2005 YR3 (small asteroid, arc=2 opp, H=23.1 ~81m) from David Tholen's team on Mauna Kea (Jan. 28.61p6)
Observations of small asteroids (H>22.0)
K09B11A 2009 BA11 (arc=5 days, H=23.9 ~56m) from Chabot Obs. (Jan. 29.28-29p3), Desert Moon Obs. (Jan. 29.34-36p3), and Guidestar Obs. (Jan. 29.84-86p3)
K09B02W 2009 BW2 (arc=9 days, H=25.1 ~32m) from ARO (Jan. 29.05-06p3)
K09B02F 2009 BF2 (arc=13 days, H=25.9 ~22m) from Desert Moon Obs. (Jan. 29.26-31p3)
K09B00G 2009 BG (arc=14 days, H=25.5 ~27m) from Spacewatch 1.8m (Jan. 30.18-19p3)
K08V15A 2008 VA15 (arc=82 days, H=23.6 ~65m) from Spacewatch 1.8m (Jan. 29.31-32p3)
K08T26T 2008 TT26 (arc=20 days, H=23.6 ~65m) from Nikolaev Obs. (2008 Oct. 21.87-05p37 & 2008 Oct. 22.80-07p40)
Observations of other objects
K09B11B 2009 BB11 (arc=4 days, H=19.3 ~467m) from CSS (Jan. 29.47-49p3)
K09B05T 2009 BT5 (arc=10 days, H=20.7 ~245m) from Spacewatch 1.8m (Jan. 29.35-36p2), MLS (Jan. 29.36-37p3), and Mirasteilas Obs. (Jan. 30.03-05p3)
K09B02L 2009 BL2 (arc=11 days, H=19.3 ~467m) from ARO (Jan. 29.04-05p4)
K09B00F 2009 BF (i=50.3°, arc=13 days, H=18.6 ~645m) from Spacewatch 1.8m (Jan. 29.27-28p3 at V=21.4-22.1)
K09B00B 2009 BB (q=0.372 AU, Q=4.497 AU, arc=13 days, H=18.3 ~741m) from Desert Moon Obs. (Jan. 29.08-10p3)
K09A16H 2009 AH16 (arc=14 days, H=17.6 ~1.02 km) from Desert Moon Obs. (Jan. 29.48-49p3)
K09A16F 2009 AF16 (arc=14 days, H=21.1 ~204m) from Chabot Obs. (Jan. 29.22-23p3)
K09A16D 2009 AD16 (Q=4.187 AU, arc=14 days, H=20.6 ~257m) from El Leoncito Obs. (Jan. 25.15-19p8, 26.14p3 & 27.13-14p5)
K09A00T 2009 AT (Q=7.326 AU, arc=27 days, H=21.0 ~214m) from ARO (Jan. 29.09p3)
K09A00N 2009 AN (arc=29 days, H=20.6 ~257m) from Spacewatch 1.8m (Jan. 30.19-20p3)
K08Y28Z 2008 YZ28 (Q=4.057 AU, arc=31 days, H=20.0 ~339m) from Spacewatch 1.8m (Jan. 30.16-17p3)
K08Y02R 2008 YR2 (arc=39 days, H=18.7 ~616m) from LINEAR (Jan. 29.40-45p5)
K08U95C 2008 UC95 (arc=92 days, H=18.6 ~645m) from LINEAR (Jan. 29.34-39p5)
K08U94Z 2008 UZ94 (arc=92 days, H=17.7 ~977m) from SSS (Jan. 28.42-43p2)
K08U00C 2008 UC (arc=102 days, H=18.9 ~562m) from LINEAR (Jan. 29.18-22p4)
K08R24Y 2008 RY24 (arc=3 opp, H=17.8 ~933m) from LINEAR (Jan. 29.09-14p5)
K08Q03T 2008 QT3 (arc=158 days, H=18.8 ~589m) from Siegen Obs. (Jan. 28.86p3), ARO (Jan. 29.03-04p4), and Mirasteilas Obs. (Jan. 29.85-88p3)
K08E05V 2008 EV5 (arc=2 opp, H=20.0 ~339m) from Siegen Obs. (Jan. 28.91-92p3)
K06G02Q 2006 GQ2 (arc=3 opp, H=18.0 ~851m) from Desert Moon Obs. (Jan. 29.51-53p3)
K06A02S 2006 AS2 (arc=4 opp, H=20.4 ~282m) from LINEAR (Jan. 29.27-32p5) and Atlante Obs. (Jan. 29.94-95p3)
K05B00C 2005 BC (arc=2 opp, H=18.0 ~851m) from El Leoncito Obs. (Jan. 23.27p2, 24.18-19p2, 25.17-18p3 & 26.19-21p3)
K04X60Y 2004 XY60 (q=0.130 AU, arc=4 opp, H=18.9 ~562m) from SSS (Jan. 28.45p1)
K04N08L 2004 NL8 (Q=4.417 AU, arc=4 opp, H=17.1 ~1.29 km) from Schiaparelli Obs. (Jan. 30.21-22p5)
K03Q47M 2003 QM47 (arc=4 opp, H=18.2 ~776m) from El Leoncito Obs. (Jan. 27.18-22p8)
K02V94Y 2002 VY94 (Q=5.375 AU, arc=2 opp, H=16.8 ~1.48 km) from LINEAR (Jan. 29.15-20p5)
K02C14D 2002 CD14 (arc=3 opp, H=20.6 ~257m) from Spacewatch 1.8m (Jan. 30.26-27p3)
K01V02B 2001 VB2 (arc=3 opp, H=18.8 ~589m) from MLS (Jan. 29.29-31p4)
K00O00M 2000 OM (arc=3 opp, H=18.6 ~645m) from CSS (Jan. 29.10-11p4)
K00B19L 2000 BL19 (Q=4.472 AU, arc=2 opp, H=19.8 ~371m) from Mirasteilas Obs. (Jan. 30.02-04p3)
J99A10Q 1999 AQ10 (arc=4 opp, H=20.3 ~295m) from CSS (Jan. 29.40-42p4)
K3217 203217 2001 FX9 from El Leoncito Obs. (Jan. 25.20-22p3 & 27.15-17p4)
I9552 189552 2000 RL77 from SSS (Jan. 29.48p3)
G2080 162080 1998 DG16 from Desert Moon Obs. (Jan. 29.42-45p3)
F3306 153306 2001 JL1 from SSS (Jan. 29.54-55p4)
E3651 143651 2003 QO104 from LINEAR (Jan. 29.39-44p5)
E2348 142348 2002 RX211 from LINEAR (Jan. 29.28-33p4)
B1253 111253 2001 XU10 from LINEAR (Jan. 29.31-33p3)
A1873 101873 1999 NC5 from El Leoncito Obs. (Jan. 24.20p1, 25.11-13p3 & 27.13p1) and Mirasteilas Obs. (Jan. 29.90-91p3)
89355 89355 2001 VS78 from LINEAR (Jan. 29.23-27p5) and Mirasteilas Obs. (Jan. 29.81-86p3)
53430 53430 1999 TY16 from Boambee Obs. (Jan. 28.45-48p3)
52768 52768 1998 OR2 from Desert Moon Obs. (Jan. 29.39-40p5)
35107 35107 1991 VH from El Leoncito Obs. (Jan. 25.09-11p4), CSS (Jan. 29.21-25p8), and Mirasteilas Obs. (Jan. 29.85-88p3)
20460 20460 Robwhiteley (1999 LO28) from LINEAR (Jan. 29.15-20p5)
16834 16834 1997 WU22 from El Leoncito Obs. (Jan. 22.26-27p3 & 25.22-23p3)
12711 12711 Tukmit (1991 BB) from LINEAR (Jan. 29.22-27p5)
05332 5332 Davidaguilar (1990 DA) from Mirasteilas Obs. (Jan. 29.77p1)
05131 5131 1990 BG from SSS (Jan. 29.47-48p4)
04957 4957 Brucemurray (1990 XJ) from El Leoncito Obs. (Jan. 22.28-29p3 & 24.26-27p3)
04596 4596 1981 QB from El Leoncito Obs. (Jan. 22.32-33p2)
04257 4257 Ubasti (1987 QA) from Boambee Obs. (Jan. 28.42-44p3 & 29.42-45p3)
04179 4179 Toutatis (1989 AC) from Atlante Obs. (Jan. 30.00-01p3)
04055 4055 Magellan (1985 DO2) from El Leoncito Obs. (Jan. 23.20-21p2)
03199 3199 Nefertiti (1982 RA) from LINEAR (Jan. 29.40-45p5) and MLS (Jan. 29.47-48p3)
03122 3122 Florence (1981 ET3) from LINEAR (Jan. 29.34-39p5)
02062 2062 Aten (1976 AA) from SSS (Jan. 28.44p1)
01917 1917 Cuyo (1968 AA) from El Leoncito Obs. (Jan. 23.21-23p4 & 25.13-14p3) and Atlante Obs. (Jan. 29.97-98p3)
01864 1864 Daedalus (1971 FA) from Siegen Obs. (Jan. 28.90p3)
01627 1627 Ivar (1929 SH) from Siegen Obs. (Jan. 28.83-84p3)
01036 1036 Ganymed (1924 TD) from El Leoncito Obs. (Jan. 22.30-31p3, 24.28-29p2 & 25.23-24p2), SSS (Jan. 29.62-65p4), and Atlante Obs. (Jan. 30.07-09p3)

Observers on 30 January '09

A total of 41 observing facilities appear in today's MPECs.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 8 in MPECs 2009-B72, 2009-B75 & 2009-B82 -- 2009 BW2, 2009 BU5, 2009 BL58, 2009 BL2, 2009 BD58, 2009 AT, 2008 YE29, 2008 QT3
`J51`	Atlante Obs. in the Canary Islands, 4 in MPEC 2009-B72 -- 2006 AS2, 4179, 1917, 1036
`A74`	Bergen-Enkheim Obs. in Germany, 2 in MPECs 2009-B82 & 2009-B86 -- 2009 BP58, 2009 BL58
`432`	Boambee Obs. in New South Wales, 2 in MPEC 2009-B72 -- 53430, 4257
`493`	Calar Alto Obs. in Spain, 14 in MPECs 2009-B74, 2009-B75, 2009-B76, 2009-B77, 2009-B78, 2009-B79, 2009-B80, 2009-B81, 2009-B82, 2009-B83, 2009-B84, 2009-B85, 2009-B86 & 2009-B87 -- 2009 BP58, 2009 BO58, 2009 BN58, 2009 BM58, 2009 BL58, 2009 BK58, 2009 BJ58, 2009 BH58, 2009 BG58, 2009 BF58, 2009 BE58, 2009 BD58, 2009 BC58, 2008 CG
`B09`	Capannoli Obs. in Italy, 1 in MPEC 2009-B75 -- 2009 BD58
`703`	Catalina Sky Survey (CSS) in Arizona, 13 in MPECs 2009-B72, 2009-B75, 2009-B77, 2009-B78, 2009-B80, 2009-B81, 2009-B82 & 2009-B86 -- 2009 BP58, 2009 BP5, 2009 BL58, 2009 BK58, 2009 BJ58, 2009 BG58, 2009 BF58, 2009 BD58, 2009 BB11, 2008 YE29, 2000 OM, 1999 AQ10, 35107
`G58`	Chabot Obs. in northern California, 3 in MPECs 2009-B72 & 2009-B75 -- 2009 BD58, 2009 BA11, 2009 AF16
`850`	Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2009-B75 -- 2009 BD58
`448`	Desert Moon Obs. in New Mexico, 9 in MPECs 2009-B72, 2009-B80 & 2009-B81 -- 2009 BK58, 2009 BJ58, 2009 BF2, 2009 BB, 2009 BA11, 2009 AH16, 2006 GQ2, 52768, 162080
`808`	El Leoncito Obs. in Argentina, 12 in MPEC 2009-B72 -- 2009 AD16, 2005 BC, 2003 QM47, 35107, 203217, 16834, 101873, 4957, 4596, 4055, 1917, 1036
`114`	Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2009-B75 -- 2009 BD58
`F654`	Jim Bedient in Hawaii via Faulkes Telescope North in Hawaii, 1 in MPEC 2009-B80 -- 2009 BJ58
`F658`	program code 8 via Faulkes Telescope North in Hawaii, 1 in MPEC 2009-B80 -- 2009 BJ58
`651`	Grasslands Obs. in Arizona, 7 in MPECs 2009-B77, 2009-B78, 2009-B79, 2009-B80, 2009-B81, 2009-B82 & 2009-B83 -- 2009 BM58, 2009 BL58, 2009 BK58, 2009 BJ58, 2009 BH58, 2009 BG58, 2009 BF58
`E16`	Grove Creek Obs. in New South Wales, 2 in MPECs 2009-B80 & 2009-B81 -- 2009 BK58, 2009 BJ58
`A17`	Guidestar Obs. in Germany, 2 in MPECs 2009-B72 & 2009-B75 -- 2009 BD58, 2009 BA11
`704`	LINEAR in New Mexico, 16 in MPECs 2009-B72, 2009-B75 & 2009-B76 -- 2009 BE58, 2009 BD58, 2008 YR2, 2008 UC95, 2008 UC, 2008 RY24, 2006 AS2, 2002 VY94, 89355, 20460, 143651, 142348, 12711, 111253, 3199, 3122
`B33`	Libbiano Obs. in Italy, 2 in MPECs 2009-B81 & 2009-B85 -- 2009 BO58, 2009 BK58
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 5 in MPECs 2009-B75, 2009-B77, 2009-B78, 2009-B80 & 2009-B81 -- 2009 BK58, 2009 BJ58, 2009 BG58, 2009 BF58, 2009 BD58
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2009-B72 -- 2005 YR3
`B67`	Mirasteilas Obs. in Switzerland, 7 in MPEC 2009-B72 -- 2009 BT5, 2008 QT3, 2000 BL19, 89355, 35107, 101873, 5332
`A99`	Monte Baldo Obs. in Italy, 1 in MPEC 2009-B75 -- 2009 BD58
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 15 in MPECs 2009-B72, 2009-B74, 2009-B75, 2009-B76, 2009-B77, 2009-B78, 2009-B80, 2009-B81, 2009-B82, 2009-B83, 2009-B84, 2009-B85 & 2009-B86 -- 2009 BT5, 2009 BP58, 2009 BO58, 2009 BN58, 2009 BM58, 2009 BL58, 2009 BK58, 2009 BJ58, 2009 BG58, 2009 BF58, 2009 BE58, 2009 BD58, 2009 BC58, 2001 VB2, 3199
`A24`	New Millennium Obs. in Italy, 1 in MPEC 2009-B75 -- 2009 BD58
`089`	Nikolaev Obs. in the Ukraine, 1 in MPEC 2009-B72 -- 2008 TT26
`H45`	Petit Jean Mtn. South Obs. in Arkansas, 1 in MPEC 2009-B73 -- P/2008 WZ96
`H06%`	Ernesto Guido in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-B76 -- 2009 BE58
`H11`	Rodeo Obs. in New Mexico, 1 in MPEC 2009-B76 -- 2009 BE58
`854`	Sabino Canyon Obs. in Arizona, 5 in MPECs 2009-B73, 2009-B75, 2009-B76, 2009-B85 & 2009-B86 -- 2009 BP58, 2009 BO58, 2009 BE58, 2009 BD58, P/2008 WZ96
`B04`	Saint-Barthelemy Obs. in Italy, 5 in MPECs 2009-B75, 2009-B76, 2009-B79, 2009-B83 & 2009-B85 -- 2009 BO58, 2009 BM58, 2009 BH58, 2009 BE58, 2009 BD58
`104`	San Marcello Pistoiese Obs. in Italy, 2 in MPECs 2009-B75 & 2009-B81 -- 2009 BK58, 2009 BD58
`H36`	Sandlot Obs. in Kansas, 7 in MPECs 2009-B75, 2009-B76, 2009-B77, 2009-B78, 2009-B82, 2009-B83 & 2009-B85 -- 2009 BO58, 2009 BM58, 2009 BL58, 2009 BG58, 2009 BF58, 2009 BE58, 2009 BD58
`204`	Schiaparelli Obs. in Italy, 11 in MPECs 2009-B72, 2009-B73, 2009-B75, 2009-B76, 2009-B78, 2009-B80, 2009-B81, 2009-B82, 2009-B83, 2009-B85 & 2009-B86 -- 2009 BP58, 2009 BO58, 2009 BM58, 2009 BL58, 2009 BK58, 2009 BJ58, 2009 BG58, 2009 BE58, 2009 BD58, P/2008 WZ96, 2004 NL8
`E12`	Siding Spring Survey (SSS) in New South Wales, 8 in MPECs 2009-B72 & 2009-B79 -- 2009 BH58, 2008 UZ94, 2004 XY60, 189552, 153306, 5131, 2062, 1036
`510`	Siegen Obs. in Germany, 5 in MPECs 2009-B72 & 2009-B75 -- 2009 BD58, 2008 QT3, 2008 EV5, 1864, 1627
`587`	Sormano Obs. in Italy, 1 in MPEC 2009-B81 -- 2009 BK58
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2009-B74 -- 2009 BC58
`291`	Spacewatch 1.8m telescope in Arizona, 14 in MPECs 2009-B72, 2009-B74, 2009-B75, 2009-B76 & 2009-B78 -- 2009 BT5, 2009 BR5, 2009 BP5, 2009 BG58, 2009 BG, 2009 BF, 2009 BE58, 2009 BE2, 2009 BD58, 2009 BC58, 2009 AN, 2008 YZ28, 2008 VA15, 2002 CD14
`611`	Starkenburg Obs. in Germany, 6 in MPECs 2009-B75, 2009-B78, 2009-B81, 2009-B83, 2009-B85 & 2009-B86 -- 2009 BP58, 2009 BO58, 2009 BM58, 2009 BK58, 2009 BG58, 2009 BD58
`673`	Table Mtn. Obs. in southern California, 1 in MPEC 2009-B73 -- P/2008 WZ96
`6735`	Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2009-B75 & 2009-B76 -- 2009 BE58, 2009 BD58
`926`	Tenagra II Obs. in Arizona, 4 in MPECs 2009-B76, 2009-B78, 2009-B79 & 2009-B85 -- 2009 BO58, 2009 BH58, 2009 BG58, 2009 BE58

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

Impact Risk Monitoring on 30 January '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 some objects with impact solutions beyond 100 years.
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 BR5	JPL Sentry	1443	2059-2078	6	1.9e-06	-4.16	-4.23	0	JPL: "Analysis based on 31 observations spanning 8.8918 days (2009-Jan-20.45513 to 2009-Jan-29.34697)." Diameter approximately 0.130 km. from mean, weighted H=22.1.
2009 BR5	NEODyS	1443	2059-2081	8	2.02e-06	-4.13	-4.22	0	NEODyS: "Based on 31 optical observations (of which 0 are rejected as outliers) from 2009/01/20.456 to 2009/01/29.348."

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 30 January '09

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

2329	Grabbed MPEC 2009-B84 - 2009 BN58 - see above Grabbed MPEC 2009-B85 - 2009 BO58 - see above Grabbed MPEC 2009-B86 - 2009 BP58 - see above Grabbed MPEC 2009-B87 - 2008 CG - see above
2300	Grabbed MPEC 2009-B75 - 2009 BD58 - see above Grabbed MPEC 2009-B76 - 2009 BE58 - see above Grabbed MPEC 2009-B77 - 2009 BF58 - see above Grabbed MPEC 2009-B78 - 2009 BG58 - see above Grabbed MPEC 2009-B79 - 2009 BH58 - see above Grabbed MPEC 2009-B80 - 2009 BJ58 - see above Grabbed MPEC 2009-B81 - 2009 BK58 - see above Grabbed MPEC 2009-B82 - 2009 BL58 - see above Grabbed MPEC 2009-B83 - 2009 BM58 - see above
2231	Grabbed MPEC 2009-B74 - 2009 BC58 - see above
1629	Grabbed MPEC 2009-B73 - Comet P/2008 WZ96 (LINEAR) - see above
1443	Noted that JPL Sentry has updated its 2009 BR5 risk assessment - see above Noted that NEODyS has updated its 2009 BR5 risk assessment - see above Grabbed MPEC 2009-B72 - Daily Orbit Update - see above

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