2010-02-15 Tracking News

Contents on 15 February '10

IAU Minor Planet Center
- NEOCP Activity -- seven listings: 1 new, 6 updated
- New MPECs -- 21 MPECs
Observers -- 24 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 15 February '10

The MPC's NEO Confirmation Page has 7 listings: 1 new, 6 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and six updated listings. Of these, two were "one nighters."

New MPECs on 15 February '10

Minor Planet Electronic Circulars

There were 21 MPECs posted this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2010-C60 time-stamped "07:21 UT" - Daily Orbit Update - see below
MPEC 2010-C61 time-stamped "12:28 UT" - 2010 CB19 - see below
MPEC 2010-C62 time-stamped "12:31 UT" - 2010 CC19 - see below
MPEC 2010-C63 time-stamped "12:32 UT" - 2010 CD19 - see below
MPEC 2010-C64 time-stamped "12:35 UT" - 2010 CE19 - see below
MPEC 2010-C65 time-stamped "12:38 UT" - 2010 CF19 - see below
MPEC 2010-C66 time-stamped "12:40 UT" - 2010 CG19 - see below
MPEC 2010-C67 time-stamped "12:43 UT" - 2010 CH19 - see below
MPEC 2010-C68 time-stamped "12:45 UT" - 2010 CJ19 - see below
MPEC 2010-C69 time-stamped "12:49 UT" - 2010 CK19 - see below
MPEC 2010-C70 time-stamped "14:17 UT" - 2010 CL19 - see below
MPEC 2010-C71 time-stamped "14:19 UT" - 2010 CM19 - see below
MPEC 2010-C72 time-stamped "14:20 UT" - 2010 CN19 - see below
MPEC 2010-C73 time-stamped "14:22 UT" - 2010 CO19 - see below
MPEC 2010-C74 time-stamped "14:24 UT" - 2010 CP19 - see below
MPEC 2010-C75 time-stamped "14:27 UT" - 2010 CQ19 - see below
MPEC 2010-C76 time-stamped "14:29 UT" - 2010 CR19 - see below
MPEC 2010-C77 time-stamped "14:32 UT" - 2010 CS19 - see below
MPEC 2010-C78 time-stamped "15:37 UT" - 2007 CH15 - see below
MPEC 2010-C79 time-stamped "15:50 UT" - 2010 CU19 - see below
MPEC 2010-C80 time-stamped "16:38 UT" - 2010 BL4

MPEC 2010-C80 - "16:38 UT" - 2010 BL4

K10B04L 2010 BL4 (Centaur, q=8.569 AU, Q=28.904 AU, H=12.0 ~13.5 km) from Cerro Tololo Inter-American Obs. (CTIO) (Feb. 14.21p1 & 14.26p1)

MPEC 2010-C79 - "15:50 UT" - 2010 CU19

K10C19U 2010 CU19 (i=58.3°, q=1.648 AU, H=17.4 ~1.12 km) was discovered at 0542 UT on 11 Feb. by WISE, which observed it at Feb. 11.24p1, 11.37p1, 11.50p1, 11.77p1, 11.83p2, 11.97p1, 12.03p1, 12.10p1, 12.16p1, 12.23p1, and 12.30p1. The discovery was confirmed by the Siding Spring Survey (SSS) (Feb. 15.47p1, 15.53p1 & 15.58p1).

MPEC 2010-C78 - "15:37 UT" - 2007 CH15

K07C15H 2007 CH15 (H=21.7 ~155m) from David Tholen's team on Mauna Kea (Dec. 9.49-51p3 at R=23.6-24.5 & Jan. 18.29p2 at R=23.1-7)

MPEC 2010-C77 - "14:32 UT" - 2010 CS19

K10C19S 2010 CS19 (small asteroid, Earth MOID=0.8 LD, H=28.1 ~8m) was discovered at 0750 UT on 15 Feb. by the Catalina Sky Survey (CSS), which observed it at Feb. 15.33-39p7. The discovery was confirmed by Grasslands Obs. (Feb. 15.38p3), Magdalena Ridge Obs. (MRO) (Feb. 15.42-45p4), and Tenagra II Obs. (Feb. 15.50p3). This object is now within ten lunar distances (LD) of Earth, reaching 1.9 LD on 13 Feb.

MPEC 2010-C76 - "14:29 UT" - 2010 CR19

K10C19R 2010 CR19 (small asteroid, H=26.4 ~18m) was discovered at 0721 UT on 15 Feb. by the Mt. Lemmon Survey (MLS), which observed it at Feb. 15.31-40p13 at V=21.0-22.2. The discovery was confirmed by MRO (Feb. 15.37-39p4).

MPEC 2010-C75 - "14:27 UT" - 2010 CQ19

K10C19Q 2010 CQ19 (small asteroid, Q=4.669 AU, Earth MOID=8.4 LD, H=27.1 ~13m) was discovered at 0641 UT on 15 Feb. by MLS, which observed it at Feb. 15.28-33p8. The discovery was confirmed by MRO (Feb. 15.34-36p4) and the Spacewatch 1.8m telescope (Feb. 15.35-36p2).

MPEC 2010-C74 - "14:24 UT" - 2010 CP19

K10C19P 2010 CP19 (small asteroid, H=25.9 ~22m) was discovered at 0617 UT on 15 Feb. by CSS, which observed it at Feb. 15.26-29p4 and 15.39p4. The discovery was confirmed by Grasslands Obs. (Feb. 15.34p3), MRO (Feb. 15.38-41p4), and Tenagra II Obs. (Feb. 15.50-51p3).

MPEC 2010-C73 - "14:22 UT" - 2010 CO19

K10C19O 2010 CO19 (small asteroid, H=25.7 ~25m) was discovered at 0522 UT on 15 Feb. by MLS, which observed it at Feb. 15.22-24p4. The discovery was confirmed by MRO (Feb. 15.28-31p4) and Spacewatch 1.8m (Feb. 15.34-35p2).

MPEC 2010-C72 - "14:20 UT" - 2010 CN19

K10C19N 2010 CN19 (small asteroid, Earth MOID=6.1 LD, H=26.4 ~18m) was discovered at 0450 UT on 15 Feb. by CSS, which observed it at Feb. 15.20-21p3 and 15.26-28p3. The discovery was confirmed by MRO (Feb. 15.23-26p5) and Tenagra II Obs. (Feb. 15.46p3). This object was within ten lunar distances (LD) of Earth, reaching 6.9 LD on 13 Feb.

MPEC 2010-C71 - "14:19 UT" - 2010 CM19

K10C19M 2010 CM19 (small asteroid, Earth MOID=2.3 LD, H=24.9 ~35m) was discovered at 1202 UT on 14 Feb. by MLS, which observed it at Feb. 14.50-55p8 and 15.49-55p8.

MPEC 2010-C70 - "14:17 UT" - 2010 CL19

K10C19L 2010 CL19 (Q=4.140 AU, Earth MOID=7.5 LD, H=17.4 ~1.12 km) was discovered at 0217 UT on 13 Feb. by MLS, which observed it at Feb. 13.10-11p4, 14.09-12p9, and 15.10-11p3. The discovery was confirmed by MRO (Feb. 15.09-12p4), Tenagra II Obs. (Feb. 15.12p3), and Grasslands Obs. (Feb. 15.18-19p2).

MPEC 2010-C69 - "12:49 UT" - 2010 CK19

K10C19K 2010 CK19 (small asteroid, Earth MOID=0.1 LD, H=27.9 ~9m) was discovered at 0759 UT on 14 Feb. by CSS, which observed it at Feb. 14.33-35p4 and 14.40-43p4. The discovery was confirmed by MRO (Feb. 14.41-44p4), Tenagra II Obs. (Feb. 14.44p3), and MLS (Feb. 14.55p5 & 15.43-44p5). This object is now within ten lunar distances (LD) of Earth, reaching 0.9 LD on 17 Feb. (INTRUDER).

MPEC 2010-C68 - "12:45 UT" - 2010 CJ19

K10C19J 2010 CJ19 (H=19.7 ~389m) was discovered at 0758 UT on 14 Feb. by CSS, which observed it at Feb. 14.33-35p4 and 14.40-43p4. The discovery was confirmed by MRO (Feb. 14.41-43p4 & 15.38-40p4) and Tenagra II Obs. (Feb. 14.43-44p3).

MPEC 2010-C67 - "12:43 UT" - 2010 CH19

K10C19H 2010 CH19 (small asteroid, H=22.1 ~129m) was discovered at 0732 UT on 14 Feb. by MLS, which observed it at Feb. 14.31-34p5 and 14.39-41p4. The discovery was confirmed by MRO (Feb. 14.38-40p4 & 15.27-29p4), Spacewatch 1.8m (Feb. 15.23-24p3), and Tenagra II Obs. (Feb. 15.38-39p3).

MPEC 2010-C66 - "12:40 UT" - 2010 CG19

K10C19G 2010 CG19 (i=54.0°, H=19.6 ~407m) was discovered at 0648 UT on 14 Feb. by LINEAR, which observed it at Feb. 14.28-32p4. The discovery was confirmed by Remanzacco Obs. (Feb. 15.08p2), Grasslands Obs. (Feb. 15.37p3), and MRO (Feb. 15.42-45p4).

MPEC 2010-C65 - "12:38 UT" - 2010 CF19

K10C19F 2010 CF19 (borderline-small, H=21.8 ~148m) was discovered at 0503 UT on 14 Feb. by LINEAR, which observed it at Feb. 14.21-25p4. The discovery was confirmed by Spacewatch 1.8m (Feb. 15.20p3), Tenagra II Obs. (Feb. 15.20p3), and Grasslands Obs. (Feb. 15.31p3).

MPEC 2010-C64 - "12:35 UT" - 2010 CE19

K10C19E 2010 CE19 (small asteroid, H=25.2 ~31m) was discovered at 0414 UT on 14 Feb. by MLS, which observed it at Feb. 14.18-24p8 and 15.21-25p10. The discovery was confirmed by MRO (Feb. 14.23-26p4 & 15.28-30p4) and Tenagra II Obs. (Feb. 14.38p3 & 15.37-38p3).

MPEC 2010-C63 - "12:32 UT" - 2010 CD19

K10C19D 2010 CD19 (H=18.1 ~812m) was discovered at 0234 UT on 14 Feb. by CSS, which observed it at Feb. 14.11-13p4 and 14.18-20p4. The discovery was confirmed by Sabino Canyon Obs. (Feb. 14.19-20p3), MLS (Feb. 15.14-15p3), and Tenagra II Obs. (Feb. 15.21-22p3).

MPEC 2010-C62 - "12:31 UT" - 2010 CC19

K10C19C 2010 CC19 (small asteroid, i=46.3°, q=0.273 AU, H=22.1 ~129m) was discovered at 0640 UT on 13 Feb. by LINEAR, which observed it at Feb. 13.28-33p5 and 14.27-32p5. The discovery was confirmed by CSS (Feb. 15.17-19p4), MRO (Feb. 15.22-24p4), Grasslands Obs. (Feb. 15.23p3), and Tenagra II Obs. (Feb. 15.36p3).

MPEC 2010-C61 - "12:28 UT" - 2010 CB19

K10C19B 2010 CB19 (small asteroid, Earth MOID=1.6 LD, H=24.4 ~45m) was discovered at 0512 UT on 13 Feb. by LINEAR, which observed it at Feb. 13.22-27p5 and 14.15-20p5. The discovery was confirmed by Remanzacco Obs. (Feb. 15.07p2), MRO (Feb. 15.15-18p4), Spacewatch 1.8m (Feb. 15.21-22p2), and Grasslands Obs. (Feb. 15.23p3).

<< DOU on 15 Feb. '10 >> MPEC 2010-C60 - "07:21 UT" - Daily Orbit Update

Observations of risk-listed objects
K10C05R 2010 CR5 (Q=4.308 AU, arc=5 days, H=20.3 ~295m) from Astronomical Research Obs. Westfield (ARO Westfield) (Feb. 14.19-21p3), Spacewatch 1.8m (Feb. 14.26-27p3), and MLS (Feb. 14.31-34p5)
K10C00A 2010 CA (small asteroid, arc=9 days, H=24.5 ~43m) from ARO Westfield (Feb. 14.07-10p3)
Observations of recently (no longer) risk-listed objects
K10C01J 2010 CJ1 (small asteroid, arc=5 days, H=24.2 ~49m) from Kanab Obs. (Feb. 14.28-32p3)
K05U00O 2005 UO (small asteroid, arc=2 opp, H=22.1 ~129m) from Spacewatch 1.8m (Feb. 14.48p3)
Observations of small asteroids (H>22.0)
K10C01K 2010 CK1 (arc=4 days, H=24.0 ~54m) from ARO Westfield (Feb. 13.22-23p3)
K10C00N 2010 CN (arc=7 days, H=23.4 ~71m) from LINEAR (Feb. 12.29-33p4)
K10C00L 2010 CL (arc=8 days, H=25.0 ~34m) from ARO Westfield (Feb. 14.14-17p3 at V=21.8-22.1) and Spacewatch 1.8m (Feb. 14.24-25p3)
K10A02N 2010 AN2 (arc=39 days, H=22.2 ~123m) from Spacewatch 1.8m (Feb. 15.12-13p3)
K02X38Y 2002 XY38 (arc=2 opp, H=23.0 ~85m) from LINEAR (Feb. 14.22-27p5)
J96G00Q 1996 GQ (arc=2 opp, H=23.0 ~85m) from Spacewatch 1.8m (Feb. 14.12-15p3)
Observations of almost-small asteroids (21.7<H<=22.0)
K10A60O 2010 AO60 (arc=30 days, H=21.8 ~148m) from ARO Westfield (Feb. 14.16p3)
Observations of other objects
K10C18L 2010 CL18 (arc=1 day, H=18.3 ~741m) from Doc Greiner Research Obs. (DGRO) (Feb. 14.26-28p6), Ernesto Guido via RAS Obs. Mayhill (Feb. 14.46-47p2), and program code ";" via RAS Obs. Mayhill (Feb. 14.50-53p4)
K10C01R 2010 CR1 (q=0.366 AU, arc=5 days, H=18.5 ~676m) from ARO Westfield (Feb. 14.33-34p3)
K10C01L 2010 CL1 (arc=5 days, H=19.5 ~426m) from LINEAR (Feb. 12.28-32p5 & 14.28-33p4)
K10B03T 2010 BT3 (arc=20 days, H=21.4 ~178m) from LINEAR (Feb. 12.27-32p5)
K10B03B 2010 BB3 (arc=24 days, H=20.4 ~282m) from ARO Westfield (Feb. 14.33-34p3)
K10B02H 2010 BH2 (arc=27 days, H=19.5 ~426m) from ARO Westfield (Feb. 14.02-03p3)
K10B02G 2010 BG2 (i=43.1°, q=0.313 AU, Q=6.492 AU, arc=27 days, H=19.9 ~355m) from ARO Westfield (Feb. 14.22-24p3)
K10A02K 2010 AK2 (i=45.0°, arc=40 days, H=18.9 ~562m) from Spacewatch 1.8m (Feb. 15.14p2)
K10A00K 2010 AK (arc=40 days, H=19.4 ~446m) from ARO Westfield (Feb. 14.17-20p3) and Spacewatch 1.8m (Feb. 15.15-16p3)
K09X02B 2009 XB2 (arc=65 days, H=20.3 ~295m) from Kanab Obs. (Feb. 14.19-23p3)
K09U03N 2009 UN3 (i=37.4°, arc=118 days, H=18.4 ~708m) from Marsfield Obs. (Feb. 9.54p4), Isle of Man Obs. (Feb. 10.97-98p6), and DGRO (Feb. 14.21p15)
K09O09P 2009 OP9 (arc=200 days, H=19.3 ~467m) from ARO Westfield (Feb. 14.11-15p3 at V=21.9-22.1)
K09C05Q 2009 CQ5 (arc=2 opp, H=17.6 ~1.02 km) from ARO Westfield (Feb. 14.01-02p4)
K08E00E 2008 EE (arc=3 opp, H=19.7 ~389m) from DGRO (Feb. 14.24p3)
K08C00M 2008 CM (arc=3 opp, H=17.1 ~1.29 km) from CSS (Feb. 13.11-14p4)
K07F01E 2007 FE1 (arc=2 opp, H=18.8 ~589m) from LINEAR (Feb. 14.47-51p4) and CSS (Feb. 14.50-52p4)
K06Y13T 2006 YT13 (i=38.2°, arc=3 opp, H=18.4 ~708m) from Desert Moon Obs. (Feb. 14.52p1)
K06D14S 2006 DS14 (arc=3 opp, H=20.3 ~295m) from SSS (Feb. 11.71p1)
K06B07T 2006 BT7 (arc=5 opp, H=18.3 ~741m) from CSS (Feb. 13.30-32p3)
K06A04O 2006 AO4 (Q=4.162 AU, arc=4 opp, H=15.5 ~2.69 km, q=1.098 AU) from CSS (Feb. 14.30-32p4)
K05EV8D 2005 ED318 (arc=2 opp, H=20.8 ~234m) from the Spacewatch 0.9m telescope (Feb. 14.25-29p3)
K04T18B 2004 TB18 (arc=3 opp, H=17.7 ~977m) from LINEAR (Feb. 14.47-51p5)
K04R84D 2004 RD84 (arc=2 opp, H=19.0 ~537m) from Crni Vrh Obs. (Feb. 13.88-91p4)
K03X10V 2003 XV10 (arc=3 opp, H=19.4 ~446m) from ARO Westfield (Feb. 14.26-28p2 at V=21.9-22.3)
K03Q31A 2003 QA31 (arc=3 opp, H=19.2 ~490m) from Desert Moon Obs. (Feb. 14.45-49p3)
K03B47T 2003 BT47 (arc=4 opp, H=17.4 ~1.12 km) from Como Obs. (Feb. 13.96-98p3)
K02R25U 2002 RU25 (arc=4 opp, H=17.4 ~1.12 km) from ARO Westfield (Feb. 14.06-12p3 at V=22.1-5)
K02C26F 2002 CF26 (arc=6 opp, H=17.2 ~1.23 km) from ARO Westfield (Feb. 14.35-36p3)
K02AC9J 2002 AJ129 (q=0.117 AU, arc=3 opp, H=18.5 ~676m) from MRO (Feb. 14.29-32p5) and MLS (Feb. 14.30p4)
K01R11Z 2001 RZ11 (i=53.1°, arc=4 opp, H=16.3 ~1.86 km) from Desert Moon Obs. (Feb. 14.27-34p3)
K01P09T 2001 PT9 (arc=2 opp, H=20.5 ~269m) from LINEAR (Feb. 13.30-33p4) and Tzec Maun Obs. Mayhill (Feb. 14.38-41p3)
J99H01E 1999 HE1 (arc=4 opp, H=17.8 ~933m) from Spacewatch 1.8m (Feb. 14.55p3)
J98Q01C 1998 QC1 (arc=3 opp, H=19.5 ~426m) from Spacewatch 1.8m (Feb. 15.10-11p3)
J98K03M 1998 KM3 (arc=3 opp, H=19.5 ~426m) from Spacewatch 1.8m (Feb. 14.28-29p3 at V=22.7)
M9007 229007 2003 XF11 from LINEAR (Feb. 14.41-43p3) and CSS (Feb. 14.47-49p4)
M1980 221980 1996 EO from CSS (Feb. 14.47-49p4)
L4088 214088 2004 JN13 from CSS (Feb. 13.15-17p4)
H5706 175706 1996 FG3 from CSS (Feb. 13.36-39p4)
H2722 172722 2004 BV102 from LINEAR (Feb. 13.28-33p5) and MLS (Feb. 14.39-42p4)
G4201 164201 2004 EC from CSS (Feb. 14.50-52p4)
G3132 163132 2002 CU11 from SSS (Feb. 10.58p1)
G2361 162361 2000 AF6 from MLS (Feb. 14.48-50p4 & 14.55p4)
G2038 162038 1996 DH from LINEAR (Feb. 12.28-33p4 & 14.28-32p4)
F9454 159454 2000 DJ8 from CSS (Feb. 13.41-43p4)
F2558 152558 1990 SA from CSS (Feb. 14.50-52p4)
D7925 137925 2000 BJ19 from LINEAR (Feb. 12.24-26p3 & 13.21-25p3)
D6618 136618 1994 CN2 from Spacewatch 0.9m (Feb. 14.42-46p3)
99248 99248 2001 KY66 from LINEAR (Feb. 12.22-27p5)
96590 96590 1998 XB from CSS (Feb. 14.10-13p3)
40263 40263 1999 FQ5 from LINEAR (Feb. 12.34-39p4)
27346 27346 2000 DN8 from LINEAR (Feb. 14.21-26p5)
20790 20790 2000 SE45 from CSS (Feb. 14.10-13p3)
16064 16064 1999 RH27 from CSS (Feb. 13.46-48p4)
12923 12923 Zephyr (1999 GK4) from CSS (Feb. 13.53-54p4)
11398 11398 1998 YP11 from CSS (Feb. 13.19-21p4)
05693 5693 1993 EA from LINEAR (Feb. 13.34-39p5)
05626 5626 1991 FE from LINEAR (Feb. 13.09-14p5 & 14.10-14p5)
04486 4486 Mithra (1987 SB) from CSS (Feb. 14.41-43p4)
03552 3552 Don Quixote (1983 SA) from CSS (Feb. 14.09-10p4)
01627 1627 Ivar (1929 SH) from LINEAR (Feb. 13.28-33p5)

Observers on 15 February '10

A total of 24 observing facilities appeared in this day's MPECs.

Code	Observer / observatory
`H21`	Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 15 in MPEC 2010-C60 -- 2010 CR5, 2010 CR1, 2010 CL, 2010 CK1, 2010 CA, 2010 BH2, 2010 BG2, 2010 BB3, 2010 AO60, 2010 AK, 2009 OP9, 2009 CQ5, 2003 XV10, 2002 RU25, 2002 CF26
`703`	Catalina Sky Survey (CSS) in Arizona, 25 in MPECs 2010-C60, 2010-C62, 2010-C63, 2010-C68, 2010-C69, 2010-C72, 2010-C74 & 2010-C77 -- 2010 CS19, 2010 CP19, 2010 CN19, 2010 CK19, 2010 CJ19, 2010 CD19, 2010 CC19, 2008 CM, 2007 FE1, 2006 BT7, 2006 AO4, 96590, 229007, 221980, 214088, 20790, 175706, 164201, 16064, 159454, 152558, 12923, 11398, 4486, 3552
`807`	Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2010-C80 -- 2010 BL4
`C13`	Como Obs., 1 in MPEC 2010-C60 -- 2003 BT47
`106`	Crni Vrh Obs. in Slovenia, 1 in MPEC 2010-C60 -- 2004 RD84
`448`	Desert Moon Obs. in New Mexico, 3 in MPEC 2010-C60 -- 2006 YT13, 2003 QA31, 2001 RZ11
`H26`	Doc Greiner Research Obs. (DGRO) in Wisconsin, 3 in MPEC 2010-C60 -- 2010 CL18, 2009 UN3, 2008 EE
`651`	Grasslands Obs. in Arizona, 7 in MPECs 2010-C61, 2010-C62, 2010-C65, 2010-C66, 2010-C70, 2010-C74 & 2010-C77 -- 2010 CS19, 2010 CP19, 2010 CL19, 2010 CG19, 2010 CF19, 2010 CC19, 2010 CB19
`987`	Isle of Man Obs. on the Isle of Man, 1 in MPEC 2010-C60 -- 2009 UN3
`682`	Kanab Obs. in Utah, 2 in MPEC 2010-C60 -- 2010 CJ1, 2009 XB2
`704`	LINEAR in New Mexico, 21 in MPECs 2010-C60, 2010-C61, 2010-C62, 2010-C65 & 2010-C66 -- 2010 CN, 2010 CL1, 2010 CG19, 2010 CF19, 2010 CC19, 2010 CB19, 2010 BT3, 2007 FE1, 2004 TB18, 2002 XY38, 2001 PT9, 99248, 40263, 27346, 229007, 172722, 162038, 137925, 5693, 5626, 1627
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 15 in MPECs 2010-C60, 2010-C61, 2010-C62, 2010-C64, 2010-C66, 2010-C67, 2010-C68, 2010-C69, 2010-C70, 2010-C72, 2010-C73, 2010-C74, 2010-C75, 2010-C76 & 2010-C77 -- 2010 CS19, 2010 CR19, 2010 CQ19, 2010 CP19, 2010 CO19, 2010 CN19, 2010 CL19, 2010 CK19, 2010 CJ19, 2010 CH19, 2010 CG19, 2010 CE19, 2010 CC19, 2010 CB19, 2002 AJ129
`E20`	Marsfield Obs. in New South Wales, 1 in MPEC 2010-C60 -- 2009 UN3
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-C78 -- 2007 CH15
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 13 in MPECs 2010-C60, 2010-C63, 2010-C64, 2010-C67, 2010-C69, 2010-C70, 2010-C71, 2010-C73, 2010-C75 & 2010-C76 -- 2010 CR5, 2010 CR19, 2010 CQ19, 2010 CO19, 2010 CM19, 2010 CL19, 2010 CK19, 2010 CH19, 2010 CE19, 2010 CD19, 2002 AJ129, 172722, 162361
`H06%`	Ernesto Guido in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-C60 -- 2010 CL18
`H06;`	program code ";" via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-C60 -- 2010 CL18
`473`	Remanzacco Obs. in Italy, 2 in MPECs 2010-C61 & 2010-C66 -- 2010 CG19, 2010 CB19
`854`	Sabino Canyon Obs. in Arizona, 1 in MPEC 2010-C63 -- 2010 CD19
`E12`	Siding Spring Survey (SSS) in New South Wales, 3 in MPECs 2010-C60 & 2010-C79 -- 2010 CU19, 2006 DS14, 163132
`691`	Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2010-C60 -- 2005 ED318, 136618
`291`	Spacewatch 1.8m telescope in Arizona, 15 in MPECs 2010-C60, 2010-C61, 2010-C65, 2010-C67, 2010-C73 & 2010-C75 -- 2010 CR5, 2010 CQ19, 2010 CO19, 2010 CL, 2010 CH19, 2010 CF19, 2010 CB19, 2010 AN2, 2010 AK2, 2010 AK, 2005 UO, 1999 HE1, 1998 QC1, 1998 KM3, 1996 GQ
`926`	Tenagra II Obs. in Arizona, 11 in MPECs 2010-C62, 2010-C63, 2010-C64, 2010-C65, 2010-C67, 2010-C68, 2010-C69, 2010-C70, 2010-C72, 2010-C74 & 2010-C77 -- 2010 CS19, 2010 CP19, 2010 CN19, 2010 CL19, 2010 CK19, 2010 CJ19, 2010 CH19, 2010 CF19, 2010 CE19, 2010 CD19, 2010 CC19
`H10`	Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2010-C60 -- 2001 PT9
`C51`	WISE in Earth polar orbit, 1 in MPEC 2010-C79 -- 2010 CU19

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

Impact Risk Monitoring on 15 February '10

**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

2010 CR5	NEODyS	1535	2019-2087	21	4.12e-08	-4.25	-4.78	0	NEODyS: "Based on 24 optical observations (of which 0 are rejected as outliers) from 2010/02/09.328 to 2010/02/14.338."

2010 CA	NEODyS	1535	2022-2072	2	8.65e-06	-4.15	-4.15	0	NEODyS: "Based on 54 optical observations (of which 0 are rejected as outliers) from 2010/02/05.197 to 2010/02/14.098."

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 15 February '10

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

0510 2/16

Grabbed MPEC 2010-C60 - Daily Orbit Update - see above
Grabbed MPEC 2010-C61 - 2010 CB19 - see above
Grabbed MPEC 2010-C62 - 2010 CC19 - see above
Grabbed MPEC 2010-C63 - 2010 CD19 - see above
Grabbed MPEC 2010-C64 - 2010 CE19 - see above
Grabbed MPEC 2010-C65 - 2010 CF19 - see above
Grabbed MPEC 2010-C66 - 2010 CG19 - see above
Grabbed MPEC 2010-C67 - 2010 CH19 - see above
Grabbed MPEC 2010-C68 - 2010 CJ19 - see above
Grabbed MPEC 2010-C69 - 2010 CK19 - see above
Grabbed MPEC 2010-C70 - 2010 CL19 - see above
Grabbed MPEC 2010-C71 - 2010 CM19 - see above
Grabbed MPEC 2010-C72 - 2010 CN19 - see above
Grabbed MPEC 2010-C73 - 2010 CO19 - see above
Grabbed MPEC 2010-C74 - 2010 CP19 - see above
Grabbed MPEC 2010-C75 - 2010 CQ19 - see above
Grabbed MPEC 2010-C76 - 2010 CR19 - see above
Grabbed MPEC 2010-C77 - 2010 CS19 - see above
Grabbed MPEC 2010-C78 - 2007 CH15 - see above
Grabbed MPEC 2010-C79 - 2010 CU19 - see above
Grabbed MPEC 2010-C80 - 2010 BL4 - see above

1535

Noted that NEODyS has updated its 2010 CA risk assessment - see above
Noted that NEODyS has updated its 2010 CR5 risk assessment - see above

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