2010-03-14 Tracking News

Contents on 14 March '10

Radar Astrometry -- one object
IAU Minor Planet Center
- NEOCP Activity -- 16 listings: 2 new, 14 updated
- New MPECs -- four MPECs
Observers -- 20 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.

Radar Astrometry on 14 March '10

Radar observation of one object

The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:

Data update noted at 0524 UTC when the database was dated 13 March

2010 DJ1 from Goldstone DSS-14 70m antenna transmit with Goldstone DSS-13 34m antenna receive (Feb. 22.05 velocity) - see links

NEOCP Activity on 14 March '10

The MPC's NEO Confirmation Page has 16 listings: 2 new, 14 updated

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

New MPECs on 14 March '10

Minor Planet Electronic Circulars

There have been four MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2010-E66 time-stamped "07:08 UT" - Daily Orbit Update - see below
MPEC 2010-E67 time-stamped "16:48 UT" - 1999 HW1 - see below
MPEC 2010-E68 time-stamped "16:57 UT" - 2005 GB120 - see below
MPEC 2010-E69 time-stamped "17:08 UT" - 2008 BU2

MPEC 2010-E69 - "17:08 UT" - 2008 BU2

K08B02U 2008 BU2 (i=38.4°, q=0.360 AU, H=18.4 ~708m) from Tenagra II Obs. (March 12.39-42p3 & 13.37-40p3)

MPEC 2010-E68 - "16:57 UT" - 2005 GB120

K05GC0B 2005 GB120 (H=20.5 ~269m) from Tenagra II Obs. (March 12.50-52p2 & 14.50-52p3)

MPEC 2010-E67 - "16:48 UT" - 1999 HW1

J99H01W 1999 HW1 (H=19.9 ~355m) from Tenagra II Obs. (March 13.50p3 & 14.32-33p3)

<< DOU on 14 Mar. '10 >> MPEC 2010-E66 - "07:08 UT" - Daily Orbit Update

Observations of risk-listed objects
K10E20H 2010 EH20 (arc=7 days, H=17.9 ~891m) from the Spacewatch 1.8m telescope (March 13.48-49p3 at V=22.0-22.6)
K10C05R 2010 CR5 (Q=5.763 AU, arc=11 days, H=19.8 ~371m) from David Tholen's team on Mauna Kea (Feb. 20.31-33p3)
Observations of recently (no longer) risk-listed objects
K10D00A 2010 DA (arc=24 days, H=20.3 ~295m) from Astronomical Research Obs. Westfield (ARO Westfield) (March 9.08p2)
K10C55H 2010 CH55 (arc=26 days, H=19.7 ~389m) from Spacewatch 1.8m (March 13.39-40p3)
K10C19G 2010 CG19 (i=61.9°, arc=19 days, H=19.4 ~446m) from Tholen team/Mauna Kea (Feb. 20.40p2)
Observations of small asteroids (H>22.0)
K10E21G 2010 EG21 (arc=4 days, H=24.5 ~43m) from Tenagra II Obs. (March 13.47p3)
Observations of other objects
K10CI0C 2010 CC180 (arc=2 opp, H=18.6 ~645m) from the Mt. Lemmon Survey (MLS) (March 13.28-30p4)
K10C44M 2010 CM44 (arc=29 days, H=19.3 ~467m) from Atlante Obs. (March 13.98-01p3)
K10C18L 2010 CL18 (Q=4.190 AU, arc=27 days, H=18.4 ~708m) from ARO Westfield (March 12.34-35p5)
K10B02L 2010 BL2 (i=60.1°, arc=53 days, H=16.4 ~1.78 km) from Spacewatch 1.8m (March 13.13-15p3)
K10A02K 2010 AK2 (i=45.0°, arc=66 days, H=18.9 ~562m) from Spacewatch 1.8m (March 13.16-17p3)
K09F04Y 2009 FY4 (arc=2 opp, H=21.0 ~214m) from Ovidiu Vaduvescu via La Palma (March 3.12p5)
K09E03F 2009 EF3 (arc=2 opp, H=21.5 ~170m) from Spacewatch 1.8m (March 13.25-26p3)
K09C03B 2009 CB3 (q=0.294 AU, arc=2 opp, H=19.5 ~426m) from Tenagra II Obs. (March 11.10-11p3 & 12.10-11p3)
K08G01E 2008 GE1 (arc=2 opp, H=19.3 ~467m) from the Catalina Sky Survey (CSS) (March 13.35-36p4)
K06D62U 2006 DU62 (arc=4 opp, H=18.0 ~851m) from LINEAR (March 12.11-15p5 & 13.10-15p5)
K05Y93Y 2005 YY93 (q=0.302 AU, Q=4.871 AU, arc=3 opp, H=17.2 ~1.23 km) from Desert Moon Obs. (March 13.10-15p3)
K04Y32R 2004 YR32 (Q=5.206 AU, arc=2 opp, H=17.6 ~1.02 km) from MLS (March 13.11-12p4)
K04T18B 2004 TB18 (arc=3 opp, H=17.7 ~977m) from Velikie Luki Obs. (March 12.01-03p3)
K04R84D 2004 RD84 (arc=2 opp, H=19.0 ~537m) from LINEAR (March 13.22-25p3)
K03U12L 2003 UL12 (Q=5.602 AU, arc=3 opp, H=17.3 ~1.17 km) from ARO Westfield (Feb. 18.48p4), MLS (March 13.42-44p4), and CSS (March 13.45-47p4)
K02X40A 2002 XA40 (arc=5 opp, H=17.0 ~1.35 km) from Spacewatch 1.8m (March 13.30-31p3)
K02VB8D 2002 VD118 (arc=3 opp, H=20.2 ~309m) from Desert Moon Obs. (March 13.35-42p3)
K02N01P 2002 NP1 (arc=3 opp, H=17.6 ~1.02 km) from LINEAR (March 12.11-16p5 & 13.11-14p4)
K02C26F 2002 CF26 (arc=6 opp, H=17.2 ~1.23 km) from LINEAR (March 12.23-27p5)
K01R11Z 2001 RZ11 (i=53.1°, arc=4 opp, H=16.3 ~1.86 km) from MLS (March 13.31-34p4)
K00E70W 2000 EW70 (arc=4 opp, H=21.3 ~186m) from Desert Moon Obs. (March 13.45-46p3)
K00CA1O 2000 CO101 (arc=2 opp, H=19.1 ~513m) from San Benedetto Po Obs. (March 11.83-84p4) and Atlante Obs. (March 13.93-95p3)
J99H01E 1999 HE1 (arc=4 opp, H=17.7 ~977m) from CSS (March 13.49-50p4)
N2382 232382 from LINEAR (March 13.23-27p5)
M1980 221980 1996 EO from CSS (March 13.37-39p4)
L8863 218863 2006 WO127 from Castelmartini Obs. (March 13.82-83p3)
L4088 214088 2004 JN13 from LINEAR (March 12.11-15p5)
H5706 175706 1996 FG3 from Goodricke-Pigott Obs. (March 13.19-21p3) and CSS (March 13.21-23p4)
G3132 163132 2002 CU11 from Atlante Obs. (March 13.89-92p3)
G2998 162998 2001 SK162 from LINEAR (March 13.16-21p4) and Castelmartini Obs. (March 13.91-92p3)
G2882 162882 2001 FD58 from LINEAR (March 12.17-20p4 & 13.16-19p4)
E1525 141525 2002 FV5 from Desert Moon Obs. (March 13.49-52p3)
D6923 136923 1998 JH2 from Tenagra II Obs. (March 12.38p3)
96631 96631 1999 FP59 from the Spacewatch 0.9m telescope (March 13.26-29p3)
85990 85990 1999 JV6 from LINEAR (March 12.31-37p4)
68359 68359 2001 OZ13 from Velikie Luki Obs. (March 11.93-96p3)
68216 68216 2001 CV26 from ARO Westfield (March 12.36-37p4) and Goodricke-Pigott Obs. (March 13.36-39p3)
27346 27346 2000 DN8 from LINEAR (March 12.17-21p5)
20790 20790 2000 SE45 from LINEAR (March 12.11-16p5 & 13.11-14p3) and MLS (March 13.16-18p4)
12923 12923 Zephyr (1999 GK4) from Crni Vrh Obs. (March 13.09-13p4)
07358 7358 Oze (1995 YA3) from CSS (March 13.32-33p4)
05693 5693 1993 EA from Naef Obs. (March 13.82-85p2)
05626 5626 1991 FE from LINEAR (March 13.11-15p5)
04015 4015 Wilson-Harrington (1979 VA) from MLS (March 13.16-18p4)
03691 3691 Bede (1982 FT) from Castelmartini Obs. (March 13.79p3)
03671 3671 Dionysus (1984 KD) from LINEAR (March 13.34-38p5)
01917 1917 Cuyo (1968 AA) from CSS (March 13.40-42p4)
01627 1627 Ivar (1929 SH) from LINEAR (March 13.23-27p5)
00433 433 Eros (1898 DQ) from Siegen Obs. (March 9.85-86p3)

Observers on 14 March '10

A total of 20 observing facilities appear in today's MPECs.

Code	Observer / observatory
`H21`	Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 4 in MPEC 2010-E66 -- 2010 DA, 2010 CL18, 2003 UL12, 68216
`J51`	Atlante Obs. in the Canary Islands, 3 in MPEC 2010-E66 -- 2010 CM44, 2000 CO101, 163132
`160`	Castelmartini Obs. in Italy, 3 in MPEC 2010-E66 -- 218863, 162998, 3691
`703`	Catalina Sky Survey (CSS) in Arizona, 7 in MPEC 2010-E66 -- 2008 GE1, 2003 UL12, 1999 HE1, 221980, 175706, 7358, 1917
`106`	Crni Vrh Obs. in Slovenia, 1 in MPEC 2010-E66 -- 12923
`448`	Desert Moon Obs. in New Mexico, 4 in MPEC 2010-E66 -- 2005 YY93, 2002 VD118, 2000 EW70, 141525
`252`	Goldstone DSS-13 34m antenna in southern California, 1 in radar -- 2010 DJ1
`253`	Goldstone DSS-14 70m antenna in southern California, 1 in radar -- 2010 DJ1
`683`	Goodricke-Pigott Obs. in Arizona, 2 in MPEC 2010-E66 -- 68216, 175706
`704`	LINEAR in New Mexico, 14 in MPEC 2010-E66 -- 2006 DU62, 2004 RD84, 2002 NP1, 2002 CF26, 85990, 27346, 232382, 214088, 20790, 162998, 162882, 5626, 3671, 1627
`950.`	Ovidiu Vaduvescu via La Palma in the Canary Islands, 1 in MPEC 2010-E66 -- 2009 FY4
`5682`	David Tholen's team on Mauna Kea in Hawaii, 2 in MPEC 2010-E66 -- 2010 CR5, 2010 CG19
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 6 in MPEC 2010-E66 -- 2010 CC180, 2004 YR32, 2003 UL12, 2001 RZ11, 20790, 4015
`A13`	Naef Obs. in Switzerland, 1 in MPEC 2010-E66 -- 5693
`434`	San Benedetto Po Obs. in Italy, 1 in MPEC 2010-E66 -- 2000 CO101
`510`	Siegen Obs. in Germany, 1 in MPEC 2010-E66 -- 433
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2010-E66 -- 96631
`291`	Spacewatch 1.8m telescope in Arizona, 6 in MPEC 2010-E66 -- 2010 EH20, 2010 CH55, 2010 BL2, 2010 AK2, 2009 EF3, 2002 XA40
`926`	Tenagra II Obs. in Arizona, 6 in MPECs 2010-E66, 2010-E67, 2010-E68 & 2010-E69 -- 2010 EG21, 2009 CB3, 2008 BU2, 2005 GB120, 1999 HW1, 136923
`C00`	Velikie Luki Obs. in Russia, 2 in MPEC 2010-E66 -- 2004 TB18, 68359

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

Impact Risk Monitoring on 14 March '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. Both also post impact solutions beyond 100 years for a few special 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 EH20	NEODyS	1615	R E M O V E D						-
2010 EH20	JPL Sentry	1615	R E M O V E D						JPL: Risk listing removed at 1049 UTC.

2010 CR5	JPL Sentry	1615	2050-2087	7	7.2e-08	-4.35	-4.58	0	JPL: "Analysis based on 38 observations spanning 10.998 days (2010-Feb-09.3273 to 2010-Feb-20.325661)." Diameter approximately 0.372 km. from mean, weighted H=19.8.
2010 CR5	NEODyS	1615	2030-2087	8	5.95e-08	-4.35	-4.52	0	NEODyS: "Based on 38 optical observations (of which 0 are rejected as outliers) from 2010/02/09.328 to 2010/02/20.326."

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 March '10

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

1810	Grabbed MPEC 2010-E67 - 1999 HW1 - see above Grabbed MPEC 2010-E68 - 2005 GB120 - see above Grabbed MPEC 2010-E69 - 2008 BU2 - see above
1615	Noted that JPL Sentry has updated its 2010 CR5 risk assessment - see above Noted that NEODyS has updated its 2010 CR5 risk assessment - see above Noted that JPL Sentry has removed 2010 EH20 as an impact risk - see above Noted that NEODyS has removed 2010 EH20 as an impact risk - see above Grabbed MPEC 2010-E66 - Daily Orbit Update - see above
0524	Noted Radar Astrometry database update - see above

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