2009-03-27 Tracking News

Contents on 27 March '09

IAU Minor Planet Center
- NEOCP Activity -- three listings: 3 new
- New MPECs -- three 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
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 27 March '09

The MPC's NEO Confirmation Page has 3 listings: 3 new

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new listings. All of these were "one nighters." So far The Tracking News has counted a total of eight listings on the NEOCP at some point today.

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

New MPECs on 27 March '09

Minor Planet Electronic Circulars

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

MPEC 2009-F88 time-stamped "02:41 UT" - 2009 FP29 - see below
MPEC 2009-F89 time-stamped "06:12 UT" - Daily Orbit Update - see below
MPEC 2009-F90 time-stamped "15:33 UT" - 2009 FY29

MPEC 2009-F90 - "15:33 UT" - 2009 FY29

K09F29Y 2009 FY29 (H=19.7 ~389m) was discovered at 1147 UT on 26 March by the Mt. Lemmon Survey (MLS), which observed it at March 26.49-52p4 and 27.46-48p3. The discovery was confirmed by Great Shefford Obs. (March 27.06p3) and the Spacewatch 1.8m telescope (March 27.48p2).

<< DOU on 27 Mar. '09 >> MPEC 2009-F89 - "06:12 UT" - Daily Orbit Update

Observations of risk-listed objects
K09F19G 2009 FG19 (i=55.0°, Q=5.124 AU, arc=5 days, H=17.9 ~891m) from Spacewatch 1.8m (March 26.36-37p3)
K09F00J 2009 FJ (small asteroid, arc=9 days, H=24.9 ~35m) from Spacewatch 1.8m (March 26.34-35p3)
Observations of recently (no longer) risk-listed objects
K09F04U 2009 FU4 (arc=2 opp, H=17.8 ~933m) from NEAT's Mt. Palomar telescope (2002 Nov. 4.22p1, 2002 Nov. 4.29p1 & 2002 Nov. 4.35p1)
K09F04S 2009 FS4 (small asteroid, arc=8 days, H=25.1 ~32m) from Calar Alto Obs. (March 26.82p3)
K09D45A 2009 DA45 (small asteroid, arc=27 days, H=22.4 ~112m) from Spacewatch 1.8m (March 26.31-32p2)
Observations of small asteroids (H>22.0)
K09F23V 2009 FV23 (arc=3 days, H=25.8 ~23m) from Great Shefford Obs. (March 27.12p3)
K09F00R 2009 FR (arc=9 days, H=26.4 ~18m) from the Spacewatch 0.9m telescope (March 26.37-41p3)
K09F00D 2009 FD (arc=31 days, H=22.2 ~123m) from GiaGa Obs. (March 25.93-97p3) and Great Shefford Obs. (March 26.93p3 & 27.16-18p5)
Observations of other objects
K09F28P 2009 FP28 (arc=1 day, H=20.8 ~234m) from Grove Creek Obs. (March 26.59-60p2)
K09F28O 2009 FO28 (arc=1 day, H=20.9 ~224m) from Dave Balam via Plaskett 1.8m Telescope (March 26.38p3) and Grove Creek Obs. (March 26.63p2)
K09F28N 2009 FN28 (Q=4.650 AU, arc=2 days, H=19.0 ~537m) from Sandlot Obs. (March 26.39p1)
K09F25L 2009 FL25 (arc=3 days, H=19.3 ~467m) from Jim Young via Table Mtn. Obs. (March 26.34-35p4) and Great Shefford Obs. (March 27.13-14p3)
K09F23U 2009 FU23 (arc=4 days, H=20.1 ~323m) from Great Shefford Obs. (March 27.14-15p3)
K09F04T 2009 FT4 (arc=7 days, H=20.7 ~245m) from Spacewatch 1.8m (March 26.22-24p3 at V=22.3)
K09F00F 2009 FF (arc=10 days, H=21.7 ~155m) from MLS (March 26.36-38p4)
K09F00A 2009 FA (i=42.3°, Q=4.046 AU, arc=10 days, H=18.6 ~645m) from GiaGa Obs. (March 25.94p1 & 25.99p1), Verona Obs. (March 26.91-92p4), and Santa Maria de Montmagastrell Obs. (March 26.96-97p3)
K09E03F 2009 EF3 (arc=11 days, H=21.5 ~170m) from MLS (March 26.29-32p4)
K09D46K 2009 DK46 (arc=26 days, H=18.2 ~776m) from Spacewatch 1.8m (March 26.40-41p3)
K09C05N 2009 CN5 (arc=40 days, H=20.0 ~339m) from Spacewatch 1.8m (March 26.26p1)
K09C02R 2009 CR2 (Q=5.037 AU, arc=48 days, H=16.6 ~1.62 km) from Frasso Sabino Obs. (March 22.82-83p2)
K09C01Q 2009 CQ1 (arc=62 days, H=20.5 ~269m) from Frasso Sabino Obs. (March 22.81p1)
K08S11V 2008 SV11 (Q=4.511 AU, arc=2 opp, H=18.2 ~776m) from Libbiano Obs. (March 26.77-80p5)
K08E82N 2008 EN82 (arc=6 opp, H=15.8 ~2.34 km, q=1.120 AU) from Spacewatch 0.9m (March 26.38-39p2)
K08E05V 2008 EV5 (arc=2 opp, H=20.0 ~339m) from Astronomical Research Obs. (ARO) (March 26.05p2) and the Catalina Sky Survey (CSS) (March 26.16-19p4)
K08E00E 2008 EE (arc=2 opp, H=19.7 ~389m) from ARO (March 26.05-06p4)
K06W02Z 2006 WZ2 (arc=3 opp, H=16.9 ~1.41 km) from New Millennium Obs. (March 24.90-93p6)
K05S25N 2005 SN25 (arc=3 opp, H=19.7 ~389m) from MLS (March 26.19-21p3)
K05S19G 2005 SG19 (Q=4.171 AU, arc=2 opp, H=16.6 ~1.62 km) from La Sagra Obs. (March 26.14-17p3)
K05E30M 2005 EM30 (i=53.1°, arc=3 opp, H=18.8 ~589m) from New Millennium Obs. (March 24.91p1)
K04F64U 2004 FU64 (arc=4 opp, H=17.6 ~1.02 km) from La Sagra Obs. (March 26.14-16p3) and Spacewatch 0.9m (March 26.37-40p3)
K02P80G 2002 PG80 (arc=3 opp, H=18.5 ~676m) from MLS (March 26.26-28p4 at V=21.0-22.1)
K6910 206910 2004 NL8 from New Millennium Obs. (March 24.92p1), La Sagra Obs. (March 25.81-84p3), and MLS (March 26.29-32p4)
J0208 190208 2006 AQ from MLS (March 26.19-21p3)
I9008 189008 1996 FR3 from Spacewatch 0.9m (March 26.44-46p2)
I7026 187026 2005 EK70 from Boambee Obs. (March 25.38-43p3 & 26.37-42p3)
G4207 164207 2004 GU9 from CSS (March 26.25-26p3)
G3760 163760 2003 OR14 from Spacewatch 0.9m (March 26.38-42p3)
G2900 162900 2001 HG31 from San Benedetto Po Obs. (March 20.81-82p4)
F9459 159459 2000 KB from Spacewatch 0.9m (March 26.20-23p3)
F5334 155334 2006 DZ169 from La Sagra Obs. (March 26.03-05p3)
F3306 153306 2001 JL1 from Boambee Obs. (March 25.42-48p3 & 26.38-43p3)
D8883 138883 2000 YL29 from Spacewatch 1.8m (March 26.46-48p3) and MLS (March 26.48-51p4)
85953 85953 1999 FK21 from New Millennium Obs. (March 24.90-93p6)
40329 40329 1999 ML from Spacewatch 0.9m (March 26.43-46p3)
25916 25916 2001 CP44 from New Millennium Obs. (March 24.90-94p5)
22771 22771 1999 CU3 from New Millennium Obs. (March 24.90-94p6)
18882 18882 1999 YN4 from Boambee Obs. (March 26.37-42p3)
16834 16834 1997 WU22 from Boambee Obs. (March 25.41-44p2, 26.38p1 & 26.46p2)
08566 8566 1996 EN from New Millennium Obs. (March 24.92-95p6) and Walnut Creek Obs. (March 26.24-25p3)
04957 4957 Brucemurray (1990 XJ) from Boambee Obs. (March 25.40-45p3 & 26.42-44p2)
04257 4257 Ubasti (1987 QA) from San Benedetto Po Obs. (March 20.79-80p4)
04179 4179 Toutatis (1989 AC) from New Millennium Obs. (March 24.89-93p6)
03554 3554 Amun (1986 EB) from San Benedetto Po Obs. (March 24.80-81p5)
03122 3122 Florence (1981 ET3) from New Millennium Obs. (March 24.90-94p6)
02329 2329 Orthos (1976 WA) from MLS (March 26.37-39p4)
01620 1620 Geographos (1951 RA) from MLS (March 26.11-13p4)

MPEC 2009-F88 - "02:41 UT" - 2009 FP29

K09F29P 2009 FP29 (small asteroid, H=24.3 ~47m) was discovered at 0611 UT on 26 March by MLS, which observed it at March 26.26-28p4 and 26.36-38p2. The discovery was confirmed by Calar Alto Obs. (March 26.84-85p3) and Great Shefford Obs. (March 26.93-95p3).

Observers on 27 March '09

A total of 22 observing facilities appear in today's MPECs.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 2 in MPEC 2009-F89 -- 2008 EV5, 2008 EE
`432`	Boambee Obs. in New South Wales, 5 in MPEC 2009-F89 -- 18882, 187026, 16834, 153306, 4957
`493`	Calar Alto Obs. in Spain, 2 in MPECs 2009-F88 & 2009-F89 -- 2009 FS4, 2009 FP29
`703`	Catalina Sky Survey (CSS) in Arizona, 2 in MPEC 2009-F89 -- 2008 EV5, 164207
`157`	Frasso Sabino Obs. in Italy, 2 in MPEC 2009-F89 -- 2009 CR2, 2009 CQ1
`203`	GiaGa Obs. in Italy, 2 in MPEC 2009-F89 -- 2009 FD, 2009 FA
`J95`	Great Shefford Obs. in England, 6 in MPECs 2009-F88, 2009-F89 & 2009-F90 -- 2009 FY29, 2009 FV23, 2009 FU23, 2009 FP29, 2009 FL25, 2009 FD
`E16`	Grove Creek Obs. in New South Wales, 2 in MPEC 2009-F89 -- 2009 FP28, 2009 FO28
`J75`	La Sagra Obs. in Spain, 4 in MPEC 2009-F89 -- 2005 SG19, 2004 FU64, 206910, 155334
`B33`	Libbiano Obs. in Italy, 1 in MPEC 2009-F89 -- 2008 SV11
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 11 in MPECs 2009-F88, 2009-F89 & 2009-F90 -- 2009 FY29, 2009 FP29, 2009 FF, 2009 EF3, 2005 SN25, 2002 PG80, 206910, 190208, 138883, 2329, 1620
`644`	NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2009-F89 -- 2009 FU4
`A24`	New Millennium Obs. in Italy, 9 in MPEC 2009-F89 -- 2006 WZ2, 2005 EM30, 85953, 25916, 22771, 206910, 8566, 4179, 3122
`6581`	Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2009-F89 -- 2009 FO28
`434`	San Benedetto Po Obs. in Italy, 3 in MPEC 2009-F89 -- 162900, 4257, 3554
`H36`	Sandlot Obs. in Kansas, 1 in MPEC 2009-F89 -- 2009 FN28
`B74`	Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2009-F89 -- 2009 FA
`691`	Spacewatch 0.9m telescope in Arizona, 7 in MPEC 2009-F89 -- 2009 FR, 2008 EN82, 2004 FU64, 40329, 189008, 163760, 159459
`291`	Spacewatch 1.8m telescope in Arizona, 8 in MPECs 2009-F89 & 2009-F90 -- 2009 FY29, 2009 FT4, 2009 FJ, 2009 FG19, 2009 DK46, 2009 DA45, 2009 CN5, 138883
`6735`	Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2009-F89 -- 2009 FL25
`A48`	Verona Obs. in Italy, 1 in MPEC 2009-F89 -- 2009 FA
`G56`	Walnut Creek Obs. in northern California, 1 in MPEC 2009-F89 -- 8566

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

Impact Risk Monitoring on 27 March '09

**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. 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

2009 FG19	JPL Sentry	1338	2018-2103	43	1.5e-07	-2.74	-3.20	0	JPL: "Analysis based on 42 observations spanning 4.9209 days (2009-Mar-21.44815 to 2009-Mar-26.36907)." Diameter approximately 0.819 km. from mean, weighted H=18.1.
2009 FG19	NEODyS	1338	2018-2090	44	1.39e-07	-2.76	-3.22	0	NEODyS: "Based on 42 optical observations (of which 0 are rejected as outliers) from 2009/03/21.449 to 2009/03/26.370."

2009 FJ	JPL Sentry	1338	2058-2107	11	5.2e-05	-4.31	-4.34	0	JPL: "Analysis based on 101 observations spanning 9.0362 days (2009-Mar-17.30916 to 2009-Mar-26.34533)." Diameter approximately 0.036 km. from mean, weighted H=24.9.
2009 FJ	NEODyS	1338	2058-2088	7	5.03e-05	-4.32	-4.34	0	NEODyS: "Based on 108 optical observations (of which 7 are rejected as outliers) from 2009/03/17.245 to 2009/03/26.346."

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 27 March '09

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

1540	Grabbed MPEC 2009-F90 - 2009 FY29 - see above
1338	Noted that JPL Sentry has updated its 2009 FG19 risk assessment - see above Noted that NEODyS has updated its 2009 FG19 risk assessment - see above Noted that JPL Sentry has updated its 2009 FJ risk assessment - see above Noted that NEODyS has updated its 2009 FJ risk assessment - see above Grabbed MPEC 2009-F89 - Daily Orbit Update - see above
0402	Grabbed MPEC 2009-F88 - 2009 FP29 - see above

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