2009-10-22 Tracking News

Contents on 22 October '09

IAU Minor Planet Center
- NEOCP Activity -- six listings: 1 new, 5 updated
- New MPECs -- six MPECs
Observers -- nineteen observing facilities
Impact Risk Monitoring -- six 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 22 October '09

The MPC's NEO Confirmation Page has 6 listings: 1 new, 5 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and five updated listings. All of these were "one nighters." So far The Tracking News has counted a total of twelve 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 at Suno Observatory by Birtwhistle et al.

New MPECs on 22 October '09

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been six MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2009-U62 time-stamped "06:11 UT" - Daily Orbit Update - see below
MPEC 2009-U63 time-stamped "14:30 UT" - 2008 GE1 - see below
MPEC 2009-U64 time-stamped "14:40 UT" - 2009 UH14 - see below
MPEC 2009-U65 time-stamped "14:47 UT" - 2009 UJ14 - see below
MPEC 2009-U66 time-stamped "15:16 UT" - 2009 UK14 - see below
MPEC 2009-U67 time-stamped "16:42 UT" - Comet C/2009 U3 (Hill)

MPEC 2009-U67 - "16:42 UT" - Comet C/2009 U3 (Hill)

CK09U030 C/2009 U3 from the Catalina Sky Survey (CSS) (Oct. 21.32-35p4, 21.39-41p4, 21.45-48p4 & 22.36-38p4), Moriyama Obs. (Oct. 21.60-62p3), Grove Creek Obs. (Oct. 21.66-67p3 & 22.55p3), Bisei Spaceguard Center (Oct. 21.74-76p4), Tenagra II Obs. (Oct. 22.41p3), the Mt. Lemmon Survey (MLS) (Oct. 22.41-45p8), RAS Obs. Mayhill (Oct. 22.49p3), and Faulkes Telescope North (Oct. 22.58p2)

MPEC 2009-U66 - "15:16 UT" - 2009 UK14

K09U14K 2009 UK14 (risk-listed) was discovered at 0555 UT on 22 Oct. by MLS, which observed it at Oct. 22.25-39p16. The discovery was confirmed by Tenagra II Obs. (Oct. 22.37p3).

MPEC 2009-U65 - "14:47 UT" - 2009 UJ14

K09U14J 2009 UJ14 was discovered at 0850 UT on 21 Oct. by MLS, which observed it at Oct. 21.37-40p4, 21.44-47p4, 22.25-31p8, and 22.36-43p7. The discovery was confirmed by Tenagra II Obs. (Oct. 21.46p2 & 22.38p3) and Richard Miles via Faulkes Telescope North (Oct. 21.59p3).

MPEC 2009-U64 - "14:40 UT" - 2009 UH14

K09U14H 2009 UH14 was discovered at 0611 UT on 21 Oct. by CSS, which observed it at Oct. 21.26-34p6 and 22.32-34p4. The discovery was confirmed by Tenagra II Obs. (Oct. 21.48-49p3 & 22.40p3) and MLS (Oct. 22.27-29p3).

MPEC 2009-U63 - "14:30 UT" - 2008 GE1

K08G01E 2008 GE1 from Tenagra II Obs. (Oct. 18.49-51p4 & 22.48-49p3)

<< DOU on 22 Oct. '09 >> MPEC 2009-U62 - "06:11 UT" - Daily Orbit Update

Observations of risk-listed objects
K09U03N 2009 UN3 (i=37.4°, arc=2 days, H=17.7 ~977m) from the Siding Spring Survey (SSS) (Oct. 21.70-71p2)
K09U02F 2009 UF2 (small asteroid, Q=4.663 AU, arc=3 days, H=24.2 ~49m) from the Spacewatch 1.8m telescope (Oct. 21.22p1 at V=21.8 & 21.26-27p3 at V=22.2)
K09T10G 2009 TG10 (i=41.3°, arc=6 days, H=17.3 ~1.17 km) from Tenagra II Obs. (Oct. 21.42-43p3)
K09T08C 2009 TC8 (arc=7 days, H=18.8 ~589m) from David Tholen's team on Mauna Kea (Oct. 18.44p3) and Spacewatch 1.8m (Oct. 21.08-09p3)
Observations of recently (no longer) risk-listed objects
K09U02D 2009 UD2 (small asteroid, arc=3 days, H=22.2 ~123m) from Spacewatch 1.8m (Oct. 21.11-13p3)
K09U00K 2009 UK (arc=5 days, H=20.0 ~339m) from LINEAR (Oct. 20.22-27p4) and Astronomical Research Obs. (ARO) (Oct. 21.23-24p3)
K09U00D 2009 UD (small asteroid, arc=6 days, H=27.2 ~12m) from Shenton Park Obs. (Oct. 21.77-78p3 & 21.82-83p4)
K09T07S 2009 TS7 (small asteroid, arc=5 days, H=23.0 ~85m) from Tholen team/Mauna Kea (Oct. 18.45p2)
K09SA3T 2009 ST103 (Q=4.630 AU, arc=3 opp, H=18.1 ~812m) from ARO (Oct. 21.04-05p3)
Observations of small asteroids (H>22.0)
K09U05J 2009 UJ5 (arc=1 day, H=25.2 ~31m) from Miles/Faulkes North (Oct. 21.41p1 & 21.46p1), Bisei (Oct. 21.50-51p5), and Moriyama Obs. (Oct. 21.53-54p4)
K09U03O 2009 UO3 (arc=1 day, H=22.9 ~89m) from Walnut Creek Obs. (Oct. 21.17p3)
K09U01U 2009 UU1 (arc=3 days, H=24.8 ~37m) from Shenton Park Obs. (Oct. 21.69-70p3)
K09T10F 2009 TF10 (arc=6 days, H=22.2 ~123m) from ARO (Oct. 21.13p3)
K09T08N 2009 TN8 (arc=6 days, H=24.2 ~49m) from ARO (Oct. 21.14p3)
K09S00W 2009 SW (arc=34 days, H=22.2 ~123m) from ARO (Oct. 21.21p3)
Observations of almost-small asteroids (21.7<H<=22.0)
K09U00L 2009 UL (arc=5 days, H=22.0 ~135m) from Spacewatch 1.8m (Oct. 21.33p3)
Observations of other objects
K09T12K 2009 TK12 (arc=7 days, H=20.2 ~309m) from Walnut Creek Obs. (Oct. 21.22-24p3)
K09T04L 2009 TL4 (arc=7 days, H=21.6 ~162m) from ARO (Oct. 21.17p3)
K09SH1V 2009 SV171 (Q=4.185 AU, arc=23 days, H=19.6 ~407m) from CSS (Oct. 21.32-34p3)
K09SH0B 2009 SB170 (q=0.347 AU, arc=24 days, H=20.5 ~269m) from Spacewatch 1.8m (Oct. 21.36-37p3 at V=22.0-22.2)
K09SA4S 2009 SS104 (arc=25 days, H=20.9 ~224m) from CSS (Oct. 21.36-38p4)
K09SA3O 2009 SO103 (arc=26 days, H=17.4 ~1.12 km) from ARO (Oct. 21.18-19p3)
K09S19U 2009 SU19 (q=0.209 AU, arc=33 days, H=17.9 ~891m) from Spacewatch 1.8m (Oct. 21.10p2)
K09S19T 2009 ST19 (arc=36 days, H=18.4 ~708m) from Smolyan Obs. (Oct. 12.03p3) and Hamamatsu-Yuto Obs. (Oct. 21.76-79p8)
K09S00P 2009 SP (arc=34 days, H=19.5 ~426m) from ARO (Oct. 21.07-08p3)
K09S00M 2009 SM (arc=35 days, H=19.4 ~446m) from ARO (Oct. 21.22-23p3)
K09R04A 2009 RA4 (arc=37 days, H=21.6 ~162m) from Spacewatch 1.8m (Oct. 21.34-35p3)
K09R00N 2009 RN (Q=4.584 AU, arc=41 days, H=20.0 ~339m) from Hamamatsu-Yuto Obs. (Oct. 21.73-75p4)
K09R00M 2009 RM (Q=4.328 AU, arc=41 days, H=18.4 ~708m) from ARO (Oct. 21.05-06p3)
K09N00A 2009 NA (Q=4.129 AU, arc=110 days, H=17.5 ~1.07 km) from Smolyan Obs. (Oct. 12.05p3)
K09K07M 2009 KM7 (arc=3 opp, H=17.8 ~933m) from CSS (Oct. 21.32-35p4 & 21.39-40p3)
K09K03C 2009 KC3 (Q=5.447 AU, arc=170 days, H=18.0 ~851m) from Smolyan Obs. (Oct. 11.97-98p4) and Hamamatsu-Yuto Obs. (Oct. 21.58-62p8)
K07VI6H 2007 VH186 (arc=2 opp, H=20.2 ~309m) from CSS (Oct. 21.36-38p4)
K05R06Q 2005 RQ6 (arc=2 opp, H=18.8 ~589m) from Hamamatsu-Yuto Obs. (Oct. 21.64-65p2)
K02F06B 2002 FB6 (arc=5 opp, H=17.6 ~1.02 km) from SSS (Oct. 21.45-46p3)
K00GE7D 2000 GD147 (arc=4 opp, H=20.2 ~309m) from Tholen team/Mauna Kea (Oct. 18.47-48p2 at R=23.7-9)
L8017 218017 2001 XV266 from MLS (Oct. 21.48-50p4)
E4922 144922 2005 CK38 from MLS (Oct. 21.34-37p4 at V=20.9-22.2)
D8815 138815 2000 TQ64 from MLS (Oct. 21.31-33p4 at V=21.1-22.1)
88263 88263 2001 KQ1 from Vicksburg Obs. (Oct. 19.44p2)
05587 5587 1990 SB from CSS (Oct. 21.46-48p4)
03288 3288 Seleucus (1982 DV) from CSS (Oct. 21.23-24p4)
00433 433 Eros (1898 DQ) from Tzec Maun Obs. Mayhill (Oct. 13.26p1, 17.17p1 & 18.24p1)

Observers on 22 October '09

Nineteen observing facilities appear in today's MPECs.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 10 in MPEC 2009-U62 -- 2009 UK, 2009 TN8, 2009 TL4, 2009 TF10, 2009 SW, 2009 ST103, 2009 SP, 2009 SO103, 2009 SM, 2009 RM
`300`	Bisei Spaceguard Center in Japan, 2 in MPECs 2009-U62 & 2009-U67 -- 2009 UJ5, C/2009 U3
`703`	Catalina Sky Survey (CSS) in Arizona, 8 in MPECs 2009-U62, 2009-U64 & 2009-U67 -- 2009 UH14, C/2009 U3, 2009 SV171, 2009 SS104, 2009 KM7, 2007 VH186, 5587, 3288
`F65`	Faulkes Telescope North in Hawaii, 1 in MPEC 2009-U67 -- C/2009 U3
`F656`	Richard Miles in England via Faulkes Telescope North in Hawaii, 2 in MPECs 2009-U62 & 2009-U65 -- 2009 UJ5, 2009 UJ14
`E16`	Grove Creek Obs. in New South Wales, 1 in MPEC 2009-U67 -- C/2009 U3
`379`	Hamamatsu-Yuto Obs. in Japan, 4 in MPEC 2009-U62 -- 2009 ST19, 2009 RN, 2009 KC3, 2005 RQ6
`704`	LINEAR in New Mexico, 1 in MPEC 2009-U62 -- 2009 UK
`5682`	David Tholen's team on Mauna Kea in Hawaii, 3 in MPEC 2009-U62 -- 2009 TS7, 2009 TC8, 2000 GD147
`900`	Moriyama Obs. in Japan, 2 in MPECs 2009-U62 & 2009-U67 -- 2009 UJ5, C/2009 U3
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 7 in MPECs 2009-U62, 2009-U64, 2009-U65, 2009-U66 & 2009-U67 -- 2009 UK14, 2009 UJ14, 2009 UH14, C/2009 U3, 218017, 144922, 138815
`H06`	RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-U67 -- C/2009 U3
`D21`	Shenton Park Obs. in Western Australia, 2 in MPEC 2009-U62 -- 2009 UU1, 2009 UD
`E12`	Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2009-U62 -- 2009 UN3, 2002 FB6
`071`	Smolyan Obs. in Bulgaria, 3 in MPEC 2009-U62 -- 2009 ST19, 2009 NA, 2009 KC3
`291`	Spacewatch 1.8m telescope in Arizona, 7 in MPEC 2009-U62 -- 2009 UL, 2009 UF2, 2009 UD2, 2009 TC8, 2009 SU19, 2009 SB170, 2009 RA4
`926`	Tenagra II Obs. in Arizona, 6 in MPECs 2009-U62, 2009-U63, 2009-U64, 2009-U65, 2009-U66 & 2009-U67 -- 2009 UK14, 2009 UJ14, 2009 UH14, C/2009 U3, 2009 TG10, 2008 GE1
`H10`	Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2009-U62 -- 433
`H47`	Vicksburg Obs. in Mississippi, 1 in MPEC 2009-U62 -- 88263
`G56`	Walnut Creek Obs. in northern California, 2 in MPEC 2009-U62 -- 2009 UO3, 2009 TK12

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

Impact Risk Monitoring on 22 October '09

**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

2009 UK14	JPL Sentry	1937	2016-2105	20	9.7e-09	-8.38	-8.66	0	JPL: "Analysis based on 19 observations spanning .14612 days (2009-Oct-22.2467 to 2009-Oct-22.39282)." Diameter approximately 0.020 km. from mean, weighted H=26.1.

2009 UN3	JPL Sentry	1404	2026-2108	74	8.1e-08	-3.33	-4.27	0	JPL: "Analysis based on 13 observations spanning 2.1089 days (2009-Oct-19.59856 to 2009-Oct-21.70747)." Diameter approximately 0.921 km. from mean, weighted H=17.8.
2009 UN3	NEODyS	1404	2013-2090	166	1.43e-07	-2.68	-3.11	0	NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2009/10/19.599 to 2009/10/21.708."

2009 UF2	JPL Sentry	1404	2052-2068	2	4.1e-09	-8.10	-8.37	0	JPL: "Analysis based on 16 observations spanning 3.0489 days (2009-Oct-18.22265 to 2009-Oct-21.27154)." Diameter approximately 0.045 km. from mean, weighted H=24.4.
2009 UF2	NEODyS	1404	2037-2068	3	5.45e-09	-8.10	-8.40	0	NEODyS: "Based on 16 optical observations (of which 0 are rejected as outliers) from 2009/10/18.223 to 2009/10/21.272."

2009 TD17	NEODyS	1533	2039-2090	60	7.05e-05	-5.44	-5.55	0	NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2009/10/09.328 to 2009/10/11.330."

2009 TG10	JPL Sentry	1404	R E M O V E D						JPL: Risk listing removed at 0949 UTC.

2009 TC8	JPL Sentry	1404	R E M O V E D						JPL: Risk listing removed at 0949 UTC.

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 22 October '09

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

1937	Noted that JPL Sentry has posted 2009 UK14 as an impact risk - see above
1714	Grabbed MPEC 2009-U67 - Comet C/2009 U3 (Hill) - see above
1533	Grabbed MPEC 2009-U63 - 2008 GE1 - see above Grabbed MPEC 2009-U64 - 2009 UH14 - see above Grabbed MPEC 2009-U65 - 2009 UJ14 - see above Grabbed MPEC 2009-U66 - 2009 UK14 - see above
1532	Noted that NEODyS has posted 2009 TD17 as an impact risk - see above
1404	Noted that JPL Sentry has removed 2009 TC8 as an impact risk - see above Noted that JPL Sentry has removed 2009 TG10 as an impact risk - see above Noted that JPL Sentry has updated its 2009 UF2 risk assessment - see above Noted that NEODyS has updated its 2009 UF2 risk assessment - see above Noted that JPL Sentry has updated its 2009 UN3 risk assessment - see above Noted that NEODyS has updated its 2009 UN3 risk assessment - see above Grabbed MPEC 2009-U62 - Daily Orbit Update - see above

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