2010-03-26 Tracking News

Contents on 26 March '10

IAU Minor Planet Center
- NEOCP Activity -- four listings: 2 new, 2 updated
- New MPECs -- one MPEC
Observers -- fifteen 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 26 March '10

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

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and two updated listings. Of these, one was a "one nighter."

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

New MPECs on 26 March '10

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 26 Mar. '10 >> MPEC 2010-F80 - "06:10 UT" - Daily Orbit Update

Observations of risk-listed objects
K10F07E 2010 FE7 (small asteroid, arc=6 days, H=23.8 ~59m) from the Spacewatch 1.8m telescope (March 25.35-36p3)
K10F07D 2010 FD7 (small asteroid, Q=4.367 AU, arc=6 days, H=22.1 ~129m) from Spacewatch 1.8m (March 25.38-39p3)
K05Y55U 2005 YU55 (almost small, arc=2 opp, H=21.8 ~148m) from the Spacewatch 0.9m telescope (March 25.33-36p3) and Spacewatch 1.8m (March 25.36-38p3)
Observations of recently (no longer) risk-listed objects
K10F09X 2010 FX9 (small asteroid, arc=3 days, H=24.1 ~51m) from Astronomical Research Obs. Westfield (ARO Westfield) (March 24.22p2)
K10F09V 2010 FV9 (small asteroid, arc=4 days, H=25.4 ~28m) from ARO Westfield (March 24.21-22p3) and Tenagra II Obs. (March 25.20p3)
K10F09T 2010 FT9 (small asteroid, Q=4.459 AU, arc=5 days, H=24.4 ~45m) from Spacewatch 1.8m (March 25.40-41p3)
K10F09S 2010 FS9 (small asteroid, Q=4.119 AU, arc=5 days, H=24.9 ~35m) from Spacewatch 0.9m (March 25.32-36p3)
K10F06D 2010 FD6 (small asteroid, arc=7 days, H=26.8 ~15m) from Spacewatch 1.8m (March 25.41-43p3)
K10F00T 2010 FT (small asteroid, arc=7 days, H=25.8 ~23m) from Tenagra II Obs. (March 25.43-44p3)
K10F00R 2010 FR (arc=8 days, H=21.5 ~170m) from Alter Satzberg Obs. (March 25.84-88p5)
K10F00Q 2010 FQ (arc=7 days, H=20.0 ~339m) from ARO Westfield (March 24.09-10p4)
K10E46A 2010 EA46 (small asteroid, Q=4.664 AU, arc=10 days, H=23.7 ~62m) from Spacewatch 1.8m (March 25.44-46p3)
Observations of small asteroids (H>22.0)
K10F10A 2010 FA10 (arc=3 days, H=26.0 ~21m) from ARO Westfield (March 24.12-13p3)
K10F09R 2010 FR9 (arc=5 days, H=26.0 ~21m) from ARO Westfield (March 24.15-16p5) and Rio Cuarto Obs. (March 25.17-22p3)
K10F09P 2010 FP9 (arc=5 days, H=23.6 ~65m) from Spacewatch 0.9m (March 25.22-23p2)
K10F06A 2010 FA6 (arc=7 days, H=24.2 ~49m) from Spacewatch 1.8m (March 25.32-34p3)
K10F00U 2010 FU (arc=7 days, H=24.6 ~41m) from Spacewatch 0.9m (March 25.33-36p3) and Spacewatch 1.8m (March 25.36-37p3)
K10F00S 2010 FS (arc=6 days, H=24.2 ~49m) from ARO Westfield (March 24.09-10p2)
K10F00K 2010 FK (arc=7 days, H=23.8 ~59m) from ARO Westfield (March 24.11-12p3)
K10E43G 2010 EG43 (arc=12 days, H=25.0 ~34m) from Spacewatch 1.8m (March 25.29-32p6 at V=22.1)
K10E43E 2010 EE43 (arc=12 days, H=24.3 ~47m) from Desert Moon Obs. (March 25.29-32p3)
K10E11X 2010 EX11 (arc=22 days, H=24.2 ~49m) from ARO Westfield (March 24.13-14p4) and Tenagra II Obs. (March 25.18p3)
K10C55C 2010 CC55 (arc=42 days, H=22.3 ~117m) from Spacewatch 1.8m (March 25.49-50p3 at V=21.7-22.2)
K09U02D 2009 UD2 (arc=158 days, H=22.4 ~112m) from Rio Cuarto Obs. (March 25.09-15p3)
Observations of other objects
K10F09Z 2010 FZ9 (arc=8 days, H=19.2 ~490m) from Desert Moon Obs. (March 25.47-49p4)
K10F00P 2010 FP (Q=4.559 AU, arc=8 days, H=20.7 ~245m) from ARO Westfield (March 24.20-21p4) and Desert Moon Obs. (March 25.42-45p3)
K10F00L 2010 FL (arc=7 days, H=19.3 ~467m) from ARO Westfield (March 24.18-19p3)
K10EB9X 2010 EX119 (arc=11 days, H=19.4 ~446m) from Spacewatch 1.8m (March 25.22p2)
K10E44F 2010 EF44 (i=38.3°, q=0.247 AU, Q=4.124 AU, arc=10 days, H=20.2 ~309m) from Spacewatch 1.8m (March 25.47-48p3)
K10E43J 2010 EJ43 (arc=11 days, H=21.1 ~204m) from the Mt. Lemmon Survey (MLS) (March 25.19-21p4)
K10D56J 2010 DJ56 (arc=30 days, H=19.4 ~446m) from Spacewatch 0.9m (March 25.51-52p2)
K10D34K 2010 DK34 (Q=4.910 AU, arc=32 days, H=20.4 ~282m) from David Tholen's team on Mauna Kea (March 24.64p1)
K10CI0C 2010 CC180 (arc=2 opp, H=18.8 ~589m) from ARO Westfield (March 24.16-17p5) and Rio Cuarto Obs. (March 25.05-07p3)
K10C44M 2010 CM44 (arc=41 days, H=19.3 ~467m) from Doc Greiner Research Obs. (DGRO) (March 26.16-17p9)
K10C01R 2010 CR1 (q=0.366 AU, arc=2 opp, H=18.5 ~676m) from Desert Moon Obs. (March 25.19p1 & 25.23-26p2)
K09U02E 2009 UE2 (arc=158 days, H=20.3 ~295m) from Rio Cuarto Obs. (March 25.37-39p3)
K09S01X 2009 SX1 (arc=2 opp, H=18.8 ~589m) from Rio Cuarto Obs. (March 25.23-26p3)
K08J00F 2008 JF (arc=3 opp, H=17.9 ~891m) from Pan-STARRS 1 (PS1) (Feb. 21.45-46p2)
K08G01E 2008 GE1 (arc=2 opp, H=19.4 ~446m) from PS1 (Feb. 15.57-58p2 & 24.58-59p4)
K07F42V 2007 FV42 (arc=4 opp, H=17.9 ~891m) from PS1 (Feb. 21.59-60p2 & 23.62-63p2)
K07E88P 2007 EP88 (q=0.096 AU, arc=2 opp, H=18.5 ~676m) from Rio Cuarto Obs. (March 25.28-31p3)
K07B02T 2007 BT2 (arc=3 opp, H=17.1 ~1.29 km) from Betelgeuse Station (2009 March 7.18p3)
K06U00R 2006 UR (arc=2 opp, H=19.4 ~446m) from PS1 (Feb. 13.39-40p2)
K04X04K 2004 XK4 (arc=2 opp, H=21.0 ~214m) from PS1 (Feb. 25.60-61p2)
K00CA1O 2000 CO101 (arc=2 opp, H=19.1 ~513m) from ARO Westfield (March 24.14-15p5)
N0111 230111 2001 BE10 from WISE (March 22.02p1, 22.09p2, 22.22p1, 22.29p1 & 22.48p1)
K8565 208565 2002 CT11 from Betelgeuse Sta. (2009 March 7.18p1)
J0161 190161 2005 TJ174 from PS1 (Feb. 20.38-39p2)
I5716 185716 1998 SF35 from Desert Moon Obs. (March 25.11-14p2)
G2452 162452 2000 HO14 from PS1 (Feb. 24.35-36p2)
E4861 144861 2004 LA12 from PS1 (Feb. 23.42-43p2)
E3651 143651 2003 QO104 from Betelgeuse Sta. (2009 March 7.12-13p3)
E1525 141525 2002 FV5 from Desert Moon Obs. (March 25.50-51p2)
D6618 136618 1994 CN2 from PS1 (Feb. 24.56-57p2)
96631 96631 1999 FP59 from PS1 (Feb. 24.56-57p2)
88264 88264 2001 KN20 from PS1 (Feb. 21.59-60p2 & 23.62-63p2)
68350 68350 2001 MK3 from Betelgeuse Sta. (2009 March 7.14p3)
68346 68346 2001 KZ66 from PS1 (Feb. 25.50-51p2)
68216 68216 2001 CV26 from Tzec Maun Obs. Moorook (March 25.74-76p2)
52768 52768 1998 OR2 from Betelgeuse Sta. (2009 March 7.21p3)
39796 39796 1997 TD from PS1 (Feb. 20.51-52p4)
16064 16064 1999 RH27 from PS1 (Feb. 16.49-50p2 & 24.54p2)
14402 14402 1991 DB from Betelgeuse Sta. (2009 March 7.10-11p3)
08566 8566 1996 EN from Betelgeuse Sta. (2009 March 7.10p3)
05653 5653 Camarillo (1992 WD5) from LINEAR (March 25.45-49p4)
05646 5646 1990 TR from WISE (March 19.65p1, 19.78p1, 20.11p1, 20.18p1, 20.24p1, 20.31p2 & 20.51p1)
02368 2368 Beltrovata (1977 RA) from PS1 (Feb. 16.50-51p2)
01036 1036 Ganymed (1924 TD) from LINEAR (March 25.29-34p5)

Observers on 26 March '10

Fifteen observing facilities appear in today's MPEC.

Code	Observer / observatory
`B03`	Alter Satzberg Obs. in Austria, 1 in MPEC 2010-F80 -- 2010 FR
`H21`	Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 12 in MPEC 2010-F80 -- 2010 FX9, 2010 FV9, 2010 FS, 2010 FR9, 2010 FQ, 2010 FP, 2010 FL, 2010 FK, 2010 FA10, 2010 EX11, 2010 CC180, 2000 CO101
`B75`	Betelgeuse Station in Italy, 7 in MPEC 2010-F80 -- 2007 BT2, 68350, 52768, 208565, 14402, 143651, 8566
`448`	Desert Moon Obs. in New Mexico, 6 in MPEC 2010-F80 -- 2010 FZ9, 2010 FP, 2010 EE43, 2010 CR1, 185716, 141525
`H26`	Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-F80 -- 2010 CM44
`704`	LINEAR in New Mexico, 2 in MPEC 2010-F80 -- 5653, 1036
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-F80 -- 2010 DK34
`G96`	Mt. Lemmon Survey in Arizona, 1 in MPEC 2010-F80 -- 2010 EJ43
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 15 in MPEC 2010-F80 -- 2008 JF, 2008 GE1, 2007 FV42, 2006 UR, 2004 XK4, 96631, 88264, 68346, 39796, 190161, 162452, 16064, 144861, 136618, 2368
`I20`	Rio Cuarto Obs. in Argentina, 6 in MPEC 2010-F80 -- 2010 FR9, 2010 CC180, 2009 UE2, 2009 UD2, 2009 SX1, 2007 EP88
`691`	Spacewatch 0.9m telescope in Arizona, 5 in MPEC 2010-F80 -- 2010 FU, 2010 FS9, 2010 FP9, 2010 DJ56, 2005 YU55
`291`	Spacewatch 1.8m telescope in Arizona, 12 in MPEC 2010-F80 -- 2010 FU, 2010 FT9, 2010 FE7, 2010 FD7, 2010 FD6, 2010 FA6, 2010 EX119, 2010 EG43, 2010 EF44, 2010 EA46, 2010 CC55, 2005 YU55
`926`	Tenagra II Obs. in Arizona, 3 in MPEC 2010-F80 -- 2010 FV9, 2010 FT, 2010 EX11
`D96`	Tzec Maun Obs. Moorook in South Australia, 1 in MPEC 2010-F80 -- 68216
`C51`	WISE in Earth polar orbit, 2 in MPEC 2010-F80 -- 230111, 5646

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

Impact Risk Monitoring on 26 March '10

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2358 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 FE7	JPL Sentry	1406	2052-2109	39	5.7e-07	-5.79	-6.24	0	JPL: "Analysis based on 21 observations spanning 6.0267 days (2010-Mar-19.33039 to 2010-Mar-25.35711)." Diameter approximately 0.062 km. from mean, weighted H=23.7.
2010 FE7	NEODyS	1406	2052-2089	27	5.39e-07	-5.76	-6.14	0	NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2010/03/19.331 to 2010/03/25.358."

2010 FD7	JPL Sentry	1406	2070	1	5.9e-10	-7.74	-7.74	0	JPL: "Analysis based on 36 observations spanning 6.1010 days (2010-Mar-19.29153 to 2010-Mar-25.39254)." Diameter approximately 0.120 km. from mean, weighted H=22.2.
2010 FD7	NEODyS	1406	2070	1	1.4e-10	-8.47	-8.47	0	NEODyS: "Based on 36 optical observations (of which 0 are rejected as outliers) from 2010/03/19.292 to 2010/03/25.393."

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 26 March '10

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

1407	Grabbed MPEC 2010-F80 - Daily Orbit Update - see above
1406	Noted that JPL Sentry has updated its 2010 FD7 risk assessment - see above Noted that NEODyS has updated its 2010 FD7 risk assessment - see above Noted that JPL Sentry has updated its 2010 FE7 risk assessment - see above Noted that NEODyS has updated its 2010 FE7 risk assessment - see above

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