2010-02-14 Tracking News

Contents on 14 February '10

IAU Minor Planet Center
- NEOCP Activity -- seven listings: 1 new, 6 updated
- New MPECs -- eleven MPECs
Observers -- 22 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 14 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 14 February '10

Minor Planet Electronic Circulars

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

MPEC 2010-C49 time-stamped "02:27 UT" - 2006 CT9 - see below
MPEC 2010-C50 time-stamped "02:35 UT" - 2008 EB9 - see below
MPEC 2010-C51 time-stamped "03:42 UT" - 2009 LS - see below
MPEC 2010-C52 time-stamped "04:48 UT" - 2009 YE7, 2009 YF7, 2009 YG19 - see below
MPEC 2010-C53 time-stamped "07:19 UT" - Daily Orbit Update - see below
MPEC 2010-C54 time-stamped "12:55 UT" - 1996 GQ - see below
MPEC 2010-C55 time-stamped "13:14 UT" - 2010 CG18 - see below
MPEC 2010-C56 time-stamped "13:18 UT" - 2010 CH18 - see below
MPEC 2010-C57 time-stamped "13:21 UT" - 2010 CJ18 - see below
MPEC 2010-C58 time-stamped "13:23 UT" - 2010 CL18 - see below
MPEC 2010-C59 time-stamped "22:15 UT" - 2005 TU50

MPEC 2010-C59 - "22:15 UT" - 2005 TU50

K05T50U 2005 TU50 (Earth MOID=4.2 LD, H=21.4 ~178m) from David Tholen's team on Mauna Kea (Jan. 18.40p1 at R=25.0 & 19.35p1 at R=25.5)

MPEC 2010-C58 - "13:23 UT" - 2010 CL18

K10C18L 2010 CL18 (Q=4.132 AU, H=18.2 ~776m) was discovered at 1101 UT on 13 Feb. by the Catalina Sky Survey (CSS), which observed it at Feb. 13.46-48p4 and 13.55p3. The discovery was confirmed by Tzec Maun Obs. Moorook (Feb. 13.71-73p3), Doc Greiner Research Obs. (DGRO) (Feb. 14.26p3), Astronomical Research Obs. Westfield (ARO Westfield) (Feb. 14.31-32p3), Sabino Canyon Obs. (Feb. 14.34-35p3), Magdalena Ridge Obs. (MRO) (Feb. 14.36-39p4), Tenagra II Obs. (Feb. 14.37p3), and the Mt. Lemmon Survey (MLS) (Feb. 14.45-47p4).

MPEC 2010-C57 - "13:21 UT" - 2010 CJ18

K10C18J 2010 CJ18 (small asteroid, Earth MOID=2.5 LD, H=26.7 ~15m) was discovered at 0709 UT on 13 Feb. by CSS, which observed it at Feb. 13.30-32p4 and 13.39-40p2. The discovery was confirmed by MRO (Feb. 13.43-46p4 & 14.27-29p4), Tenagra II Obs. (Feb. 14.21-22p3), Sabino Canyon Obs. (Feb. 14.28-29p3), and ARO Westfield (Feb. 14.30-31p4). This object will be coming within ten lunar distances (LD) of Earth, reaching 3.4 LD on 19 Feb.

MPEC 2010-C56 - "13:18 UT" - 2010 CH18

K10C18H 2010 CH18 (H=18.9 ~562m) was discovered at 0024 UT on 9 Feb. by WISE, which observed it at Feb. 9.02p1, 9.15p1, 9.28p1, 9.61p2, 9.68p1, 9.74p1, 9.88p1, 9.94p1, 10.01p1, 10.08p1, and 10.21p1. The discovery was confirmed by ARO Westfield (Feb. 12.02-03p6), Tenagra II Obs. (Feb. 12.16-17p2 & 14.13-14p3), Sormano Obs. (Feb. 12.95p3), and MRO (Feb. 13.10-12p4 & 14.10-14p4).

MPEC 2010-C55 - "13:14 UT" - 2010 CG18

K10C18G 2010 CG18 (H=20.1 ~323m) was discovered at 1327 UT on 6 Feb. by WISE, which observed it at Feb. 6.56p1, 6.83p1, 7.09p1, 7.22p2, 7.35p1, 7.62p1, and 7.75p1. The discovery was confirmed by ARO Westfield (Feb. 12.02-03p4) and the Spacewatch 1.8m telescope (Feb. 13.16-17p3).

MPEC 2010-C54 - "12:55 UT" - 1996 GQ

J96G00Q 1996 GQ (small asteroid, Earth MOID=7.9 LD, H=23.0 ~85m) from WISE (Feb. 6.63p1, 6.82p1, 6.89p1, 7.02p1, 7.09p1, 7.15p1, 7.22p1, 7.29p1, 7.62p1, 7.75p1, 7.88p1 & 8.02p1), ARO Westfield (Feb. 14.04-05p2), and MLS (Feb. 14.14p5 at V=21.8-22.3)

<< DOU on 14 Feb. '10 >> MPEC 2010-C53 - "07:19 UT" - Daily Orbit Update

Observations of risk-listed objects
K10C05R 2010 CR5 (Q=5.633 AU, arc=4 days, H=20.5 ~269m) from Spacewatch 1.8m (Feb. 13.34-35p4 at V=22.6-7)
K10C00A 2010 CA (small asteroid, arc=8 days, H=24.5 ~43m) from Sormano Obs. (Feb. 12.85-86p3) and Tenagra II Obs. (Feb. 13.23-24p4)
Observations of recently (no longer) risk-listed objects
K10C01M 2010 CM1 (small asteroid, arc=4 days, H=25.3 ~29m) from Spacewatch 1.8m (Feb. 13.28-30p3 at V=21.7-22.1)
K10B02L 2010 BL2 (i=60.1°, arc=25 days, H=16.4 ~1.78 km) from ARO Westfield (Feb. 12.06-08p4) and Desert Moon Obs. (Feb. 13.09-15p3)
K05U00O 2005 UO (small asteroid, arc=2 opp, H=22.1 ~129m) from Spacewatch 1.8m (Feb. 13.40-41p3 at V=21.7-22.5)
Observations of small asteroids (H>22.0)
K10C01K 2010 CK1 (arc=4 days, H=24.0 ~54m) from ARO Westfield (Feb. 12.14-15p3) and Sormano Obs. (Feb. 12.97p3)
K10C00N 2010 CN (arc=7 days, H=23.5 ~68m) from Sormano Obs. (Feb. 12.98p2)
K10C00L 2010 CL (arc=6 days, H=24.9 ~35m) from ARO Westfield (Feb. 12.11-13p2)
K10A30J 2010 AJ30 (arc=33 days, H=22.7 ~98m) from ARO Westfield (Feb. 12.10-11p3)
K10A02N 2010 AN2 (arc=38 days, H=22.2 ~123m) from Spacewatch 1.8m (Feb. 14.17-18p3)
K02X38Y 2002 XY38 (arc=2 opp, H=23.0 ~85m) from Petit Jean Mtn. South Obs. (PJMSO) (Feb. 13.10p5)
Observations of other objects
K10C01R 2010 CR1 (q=0.365 AU, arc=4 days, H=18.4 ~708m) from the Siding Spring Survey (SSS) (Feb. 13.58p1)
K10C01L 2010 CL1 (arc=4 days, H=19.6 ~407m) from ARO Westfield (Feb. 12.15-16p5 & 13.23-24p4), Sormano Obs. (Feb. 12.99-00p3), and DGRO (Feb. 13.12-13p4)
K10B03B 2010 BB3 (arc=23 days, H=20.3 ~295m) from Desert Moon Obs. (Feb. 13.40-41p4)
K10B02H 2010 BH2 (arc=25 days, H=19.5 ~426m) from ARO Westfield (Feb. 12.09p3)
K10A02K 2010 AK2 (i=45.0°, arc=39 days, H=18.9 ~562m) from Spacewatch 1.8m (Feb. 13.22p3 & 14.18-19p3)
K09X02C 2009 XC2 (Q=4.188 AU, arc=64 days, H=17.0 ~1.35 km) from Sormano Obs. (Feb. 13.01p4)
K09WP3E 2009 WE253 (Q=4.016 AU, arc=2 opp, H=17.7 ~977m) from Desert Moon Obs. (Feb. 13.19-25p3)
K09U03N 2009 UN3 (i=37.4°, arc=117 days, H=18.4 ~708m) from Sormano Obs. (Feb. 12.87p4), DGRO (Feb. 13.20-21p27), and Wishing Star Obs. (Feb. 13.21-22p3)
K06U00R 2006 UR (arc=2 opp, H=19.4 ~446m) from DGRO (Feb. 13.19p10)
K06B07T 2006 BT7 (arc=5 opp, H=18.3 ~741m) from CSS (Feb. 13.39-40p3)
K05F00D 2005 FD (arc=3 opp, H=19.6 ~407m) from ARO Westfield (Feb. 8.08-12p3 at V=22.8-23.1 & 11.14-19p3 at V=21.9-22.2)
K03Q31A 2003 QA31 (arc=3 opp, H=19.1 ~513m) from Desert Moon Obs. (Feb. 13.43-47p3)
K03E00G 2003 EG (arc=6 opp, H=16.4 ~1.78 km) from Desert Moon Obs. (Feb. 13.50-54p3)
K03C11H 2003 CH11 (i=36.4°, arc=2 opp, H=19.4 ~446m) from PJMSO (Feb. 13.09-10p5) and DGRO (Feb. 13.15-16p8)
K02X40A 2002 XA40 (arc=5 opp, H=17.0 ~1.35 km) from MLS (Feb. 13.32-34p3)
K02AC9J 2002 AJ129 (q=0.117 AU, arc=3 opp, H=18.5 ~676m) from Hamamatsu-Yuto Obs. (Feb. 13.50-51p4 & 13.57-60p6), El Guijo Obs. (Feb. 14.04-08p3), and MLS (Feb. 14.24-26p4)
K00O08G 2000 OG8 (Q=4.115 AU, arc=3 opp, H=17.7 ~977m) from MLS (Feb. 13.23-25p4 at V=21.8-22.6)
K00D08H 2000 DH8 (i=37.6°, arc=6 opp, H=18.5 ~676m) from CSS (Feb. 13.45-48p4)
K00CA1O 2000 CO101 (arc=2 opp, H=19.0 ~537m) from DGRO (Feb. 14.17p8)
J98K03M 1998 KM3 (arc=3 opp, H=19.5 ~426m) from Spacewatch 1.8m (Feb. 13.44-46p3)
L4088 214088 2004 JN13 from MLS (Feb. 13.13-15p4)
H5706 175706 1996 FG3 from CSS (Feb. 13.48-49p4)
G3132 163132 2002 CU11 from Tzec Maun Obs. Moorook (Feb. 13.70-72p2)
G2998 162998 2001 SK162 from CSS (Feb. 13.18-21p4)
E4861 144861 2004 LA12 from MLS (Feb. 13.38-41p4)
D6618 136618 1994 CN2 from the Spacewatch 0.9m telescope (Feb. 13.42-46p3)
08567 8567 1996 HW1 from Spacewatch 0.9m (Feb. 13.43-47p3)
05646 5646 1990 TR from Engelhardt Obs. Zelenchukskaya Station (Feb. 13.69-70p6) and Bigmuskie Obs. (Feb. 13.87-89p3)

MPEC 2010-C52 - "04:48 UT" - 2009 YE7, 2009 YF7, 2009 YG19

K09Y19G 2009 YG19 from Cerro Tololo Inter-American Obs. (CTIO) (Feb. 9.07p1 & 10.05p1)
K09Y07F 2009 YF7 from CTIO (Feb. 9.07p1 & 10.08-12p2)
K09Y07E 2009 YE7 from CTIO (Feb. 3.10p1, 6.11p1 & 8.06p1)

MPEC 2010-C51 - "03:42 UT" - 2009 LS

K09L00S 2009 LS (i=45.0°, H=18.0 ~851m) from Tenagra II Obs. (Feb. 13.09-10p2 & 14.11-12p3)

MPEC 2010-C50 - "02:35 UT" - 2008 EB9

K08E09B 2008 EB9 (H=20.4 ~282m) from Tenagra II Obs. (Feb. 12.36-37p3 & 13.38-39p3)

MPEC 2010-C49 - "02:27 UT" - 2006 CT9

K06C09T 2006 CT9 (H=20.4 ~282m) from Tenagra II Obs. (Feb. 12.49-50p3 & 13.36-37p3)

Observers on 14 February '10

A total of 22 observing facilities appeared in this day's MPECs.

Code	Observer / observatory
`H21`	Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 12 in MPECs 2010-C53, 2010-C54, 2010-C55, 2010-C56, 2010-C57 & 2010-C58 -- 2010 CL18, 2010 CL1, 2010 CL, 2010 CK1, 2010 CJ18, 2010 CH18, 2010 CG18, 2010 BL2, 2010 BH2, 2010 AJ30, 2005 FD, 1996 GQ
`B88`	Bigmuskie Obs. in Italy, 1 in MPEC 2010-C53 -- 5646
`703`	Catalina Sky Survey (CSS) in Arizona, 6 in MPECs 2010-C53, 2010-C57 & 2010-C58 -- 2010 CL18, 2010 CJ18, 2006 BT7, 2000 DH8, 175706, 162998
`807`	Cerro Tololo Inter-American Obs. (CTIO) in Chile, 3 in MPEC 2010-C52 -- 2009 YG19, 2009 YF7, 2009 YE7
`448`	Desert Moon Obs. in New Mexico, 5 in MPEC 2010-C53 -- 2010 BL2, 2010 BB3, 2009 WE253, 2003 QA31, 2003 EG
`H26`	Doc Greiner Research Obs. (DGRO) in Wisconsin, 6 in MPECs 2010-C53 & 2010-C58 -- 2010 CL18, 2010 CL1, 2009 UN3, 2006 UR, 2003 CH11, 2000 CO101
`J27`	El Guijo Obs. in Spain, 1 in MPEC 2010-C53 -- 2002 AJ129
`114`	Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2010-C53 -- 5646
`379`	Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2010-C53 -- 2002 AJ129
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 3 in MPECs 2010-C56, 2010-C57 & 2010-C58 -- 2010 CL18, 2010 CJ18, 2010 CH18
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-C59 -- 2005 TU50
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 7 in MPECs 2010-C53, 2010-C54 & 2010-C58 -- 2010 CL18, 2002 XA40, 2002 AJ129, 2000 OG8, 1996 GQ, 214088, 144861
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 2 in MPEC 2010-C53 -- 2003 CH11, 2002 XY38
`854`	Sabino Canyon Obs. in Arizona, 2 in MPECs 2010-C57 & 2010-C58 -- 2010 CL18, 2010 CJ18
`E12`	Siding Spring Survey in New South Wales, 1 in MPEC 2010-C53 -- 2010 CR1
`587`	Sormano Obs. in Italy, 7 in MPECs 2010-C53 & 2010-C56 -- 2010 CN, 2010 CL1, 2010 CK1, 2010 CH18, 2010 CA, 2009 XC2, 2009 UN3
`691`	Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2010-C53 -- 136618, 8567
`291`	Spacewatch 1.8m telescope in Arizona, 7 in MPECs 2010-C53 & 2010-C55 -- 2010 CR5, 2010 CM1, 2010 CG18, 2010 AN2, 2010 AK2, 2005 UO, 1998 KM3
`926`	Tenagra II Obs. in Arizona, 7 in MPECs 2010-C49, 2010-C50, 2010-C51, 2010-C53, 2010-C56, 2010-C57 & 2010-C58 -- 2010 CL18, 2010 CJ18, 2010 CH18, 2010 CA, 2009 LS, 2008 EB9, 2006 CT9
`D96`	Tzec Maun Obs. Moorook in South Australia, 2 in MPECs 2010-C53 & 2010-C58 -- 2010 CL18, 163132
`C51`	WISE in Earth polar orbit, 3 in MPECs 2010-C54, 2010-C55 & 2010-C56 -- 2010 CH18, 2010 CG18, 1996 GQ
`I15`	Wishing Star Obs. in Rhode Island, 1 in MPEC 2010-C53 -- 2009 UN3

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

Impact Risk Monitoring on 14 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	2000	2019-2090	68	1.49e-07	-4.53	-4.93	0	NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2010/02/09.328 to 2010/02/13.353."

2010 CA	NEODyS	2000	2022-2048	2	1.36e-05	-3.94	-3.94	0	NEODyS: "Based on 51 optical observations (of which 0 are rejected as outliers) from 2010/02/05.197 to 2010/02/13.240."

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 14 February '10

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

0510 2/16

Grabbed MPEC 2010-C49 - 2006 CT9 - see above
Grabbed MPEC 2010-C50 - 2008 EB9 - see above
Grabbed MPEC 2010-C51 - 2009 LS - see above
Grabbed MPEC 2010-C52 - 2009 YE7, 2009 YF7, 2009 YG19 - see above
Grabbed MPEC 2010-C53 - Daily Orbit Update - see above
Grabbed MPEC 2010-C54 - 1996 GQ - see above
Grabbed MPEC 2010-C55 - 2010 CG18 - see above
Grabbed MPEC 2010-C56 - 2010 CH18 - see above
Grabbed MPEC 2010-C57 - 2010 CJ18 - see above
Grabbed MPEC 2010-C58 - 2010 CL18 - see above
Grabbed MPEC 2010-C59 - 2005 TU50 - see above

2000

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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