2009-02-15 Tracking News

Contents on 15 February '09

IAU Minor Planet Center
- NEOCP Activity -- eight listings: 8 updated
- New MPECs -- four MPECs
Observers -- 30 observing facilities
Impact Risk Monitoring -- one object
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 15 February '09

The MPC's NEO Confirmation Page has 8 listings: 8 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eight updated listings. Of these, three were "one nighters." So far The Tracking News has counted a total of twelve objects listed 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 15 February '09

Minor Planet Electronic Circulars

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

MPEC 2009-C84 time-stamped "07:06 UT" - Daily Orbit Update - see below
MPEC 2009-C85 time-stamped "14:40 UT" - 2009 CN5 - see below
MPEC 2009-C86 time-stamped "14:43 UT" - 2009 CO5 - see below
MPEC 2009-C87 time-stamped "14:45 UT" - 2009 CP5

MPEC 2009-C87 - "14:45 UT" - 2009 CP5

K09C05P 2009 CP5 (H=21.3 ~186m) was discovered at 0642 UT on 14 Feb. by the Catalina Sky Survey (CSS), which observed it at Feb. 14.28-30p8 and 14.34-35p3. The discovery was confirmed by Sabino Canyon Obs. (Feb. 14.38p2), Bisei Spaceguard Center (Feb. 14.56-57p4), Starkenburg Obs. (Feb. 14.76-77p2), Libbiano Obs. (Feb. 14.80-81p3), Calar Alto Obs. (Feb. 14.81p3), Gnosca Obs. (Feb. 14.84-86p3), Inastars Obs. (Feb. 14.87-88p5), Farra d'Isonzo Obs. (Feb. 14.91-93p2), Remanzacco Obs. (Feb. 14.92p1), Schiaparelli Obs. (Feb. 14.95-96p3), and the Mt. Lemmon Survey (MLS) (Feb. 15.38-39p4).

MPEC 2009-C86 - "14:43 UT" - 2009 CO5

K09C05O 2009 CO5 (borderline-small, H=21.8 ~148m) was discovered at 0636 UT on 14 Feb. by CSS, which observed it at Feb. 2.17-18p3, 2.26-28p4, 14.28-29p4, and 14.35p4. The discovery was confirmed by Sabino Canyon Obs. (Feb. 14.36-37p3), Engelhardt Obs. Zelenchukskaya Station (Feb. 14.68-69p3), Calar Alto Obs. (Feb. 14.80p3), Gnosca Obs. (Feb. 14.83-84p3), Starkenburg Obs. (Feb. 14.84-85p2), Inastars Obs. (Feb. 14.84-85p4), Remanzacco Obs. (Feb. 14.87p2), Schiaparelli Obs. (Feb. 14.93p2 & 14.97-98p2), La Canada Obs. (Feb. 15.04-05p3), and MLS (Feb. 15.38-39p4).

MPEC 2009-C85 - "14:40 UT" - 2009 CN5

K09C05N 2009 CN5 (H=20.1 ~323m) was discovered at 1917 UT on 13 Feb. by Crni Vrh Obs., which observed it at Feb. 13.80-83p4 and 14.81-82p4. The discovery was confirmed by Calar Alto Obs. (Feb. 13.87p3, 14.12p3 & 14.79p3), Great Shefford Obs. (Feb. 13.89-90p3), Astronomical Research Obs. (ARO) (Feb. 14.04-07p4), Sabino Canyon Obs. (Feb. 14.25-26p2), Gnosca Obs. (Feb. 14.81-82p2), Libbiano Obs. (Feb. 14.84-85p3), Schiaparelli Obs. (Feb. 15.01-02p2), and Sandlot Obs. (Feb. 15.19p2).

<< DOU on 15 Feb. '09 >> MPEC 2009-C84 - "07:06 UT" - Daily Orbit Update

Observations of risk-listed objects
K09C02R 2009 CR2 (Q=4.968 AU, arc=11 days, H=16.5 ~1.70 km) from Cyclops Obs. (Feb. 13.79-81p2)
Observations of recently (no longer) risk-listed objects
K09C04R 2009 CR4 (almost small, arc=1 day, H=21.8 ~148m) from the Spacewatch 1.8m telescope (Feb. 14.33-36p3)
K09C00V 2009 CV (small asteroid, arc=11 days, H=24.2 ~49m) from Peschiera del Garda Obs. (Feb. 13.90-91p2) and LINEAR (Feb. 14.29-34p5)
K09C00S 2009 CS (arc=12 days, H=19.6 ~407m) from Desert Moon Obs. (Feb. 14.35-36p3)
K09B81D 2009 BD81 (Q=4.087 AU, arc=14 days, H=20.6 ~257m) from ARO (Feb. 14.01-02p3)
K09B71L 2009 BL71 (almost small, arc=15 days, H=21.9 ~141m) from LINEAR (Feb. 14.21-25p4)
K09B58J 2009 BJ58 (arc=16 days, H=19.0 ~537m) from CSS (Feb. 14.14-16p4)
K09B58C 2009 BC58 (arc=20 days, H=18.8 ~589m) from Spacewatch 1.8m (Feb. 14.37p1 & 14.43p1)
Observations of other objects
K09C02Z 2009 CZ2 (Q=4.375 AU, arc=10 days, H=19.0 ~537m) from ARO (Feb. 14.02p4)
K09C01W 2009 CW1 (arc=11 days, H=21.7 ~155m) from Desert Moon Obs. (Feb. 14.44-47p3)
K09B58P 2009 BP58 (arc=16 days, H=18.6 ~645m) from Desert Moon Obs. (Feb. 14.38-40p3)
K09B11B 2009 BB11 (arc=20 days, H=19.4 ~446m) from Desert Moon Obs. (Feb. 14.51-54p3)
K09B00B 2009 BB (q=0.374 AU, Q=4.462 AU, arc=29 days, H=18.3 ~741m) from ARO (Feb. 14.03-04p3)
K08M05B 2008 MB5 (arc=229 days, H=19.2 ~490m) from LINEAR (Feb. 14.28-32p4)
K08E05E 2008 EE5 (i=44.8°, arc=2 opp, H=19.6 ~407m) from Peschiera del Garda Obs. (Feb. 13.86p5 & 14.76-77p5), Hamamatsu-Yuto Obs. (Feb. 14.46-49p5), and Siegen Obs. (Feb. 14.84p3)
K08E00E 2008 EE (arc=2 opp, H=19.7 ~389m) from LINEAR (Feb. 14.27-32p5)
K06W02Z 2006 WZ2 (arc=3 opp, H=16.9 ~1.41 km) from Cyclops Obs. (Feb. 13.82p5), LINEAR (Feb. 14.29-34p5), and Hamamatsu-Yuto Obs. (Feb. 14.70-73p8)
K03Y01X 2003 YX1 (arc=2 opp, H=20.9 ~224m) from LINEAR (Feb. 14.29-34p5)
K01D08R 2001 DR8 (arc=2 opp, H=18.9 ~562m) from Spacewatch 1.8m (Feb. 14.31p3) and MLS (Feb. 14.42-45p4)
K00B19L 2000 BL19 (Q=4.472 AU, arc=2 opp, H=19.9 ~355m) from Hamamatsu-Yuto Obs. (Feb. 14.62p2)
J99G04L 1999 GL4 (arc=2 opp, H=19.7 ~389m) from the Sloan Digital Sky Survey (SDSS) (1998 Sept. 25.29p2)
J99A10Q 1999 AQ10 (arc=4 opp, H=20.4 ~282m) from Vallemare di Borbona Obs. (Feb. 13.00-15p8)
J93H00C 1993 HC (arc=38 days, H=20.6 ~257m) from the Spacewatch 0.9m telescope (1993 April 19.22-26p2 & 1993 April 19.31p1)
K6359 206359 2003 QM47 from Peschiera del Garda Obs. (Feb. 13.93-96p4)
J8752 198752 2005 EA60 from MLS (Feb. 14.42-44p4)
G2900 162900 2001 HG31 from LINEAR (Feb. 14.16-20p5)
F4988 154988 2004 XN35 from MLS (Feb. 14.26-29p4 at V=21.7-22.4)
E1765 141765 2002 MP3 from LINEAR (Feb. 14.21-25p5)
52762 52762 1998 MT24 from LINEAR (Feb. 14.11-14p4)
36284 36284 2000 DM8 from San Benedetto Po Obs. (Feb. 13.83p4) and LINEAR (Feb. 14.21-26p5)
22753 22753 1998 WT from Mataro Obs. (Feb. 13.95p3)
19764 19764 2000 NF5 from MLS (Feb. 14.26-28p4)
04544 4544 Xanthus (1989 FB) from LINEAR (Feb. 14.09-14p5)
04179 4179 Toutatis (1989 AC) from Mataro Obs. (Feb. 13.94-96p3) and MLS (Feb. 14.26-28p4)
01980 1980 Tezcatlipoca (1950 LA) from MLS (Feb. 14.09-10p4)

Observers on 15 February '09

A total of 30 observing facilities appear in today's MPECs.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 4 in MPECs 2009-C84 & 2009-C85 -- 2009 CZ2, 2009 CN5, 2009 BD81, 2009 BB
`300`	Bisei Spaceguard Center in Japan, 1 in MPEC 2009-C87 -- 2009 CP5
`493`	Calar Alto Obs. in Spain, 3 in MPECs 2009-C85, 2009-C86 & 2009-C87 -- 2009 CP5, 2009 CO5, 2009 CN5
`703`	Catalina Sky Survey (CSS) in Arizona, 3 in MPECs 2009-C84, 2009-C86 & 2009-C87 -- 2009 CP5, 2009 CO5, 2009 BJ58
`106`	Crni Vrh Obs. in Slovenia, 1 in MPEC 2009-C85 -- 2009 CN5
`B84`	Cyclops Obs. in The Netherlands, 2 in MPEC 2009-C84 -- 2009 CR2, 2006 WZ2
`448`	Desert Moon Obs. in New Mexico, 4 in MPEC 2009-C84 -- 2009 CW1, 2009 CS, 2009 BP58, 2009 BB11
`114`	Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2009-C86 -- 2009 CO5
`595`	Farra d'Isonzo Obs. in Italy, 1 in MPEC 2009-C87 -- 2009 CP5
`143`	Gnosca Obs. in Switzerland, 3 in MPECs 2009-C85, 2009-C86 & 2009-C87 -- 2009 CP5, 2009 CO5, 2009 CN5
`J95`	Great Shefford Obs. in England, 1 in MPEC 2009-C85 -- 2009 CN5
`379`	Hamamatsu-Yuto Obs. in Japan, 3 in MPEC 2009-C84 -- 2008 EE5, 2006 WZ2, 2000 BL19
`B15`	Inastars Obs. in Germany, 2 in MPECs 2009-C86 & 2009-C87 -- 2009 CP5, 2009 CO5
`704`	LINEAR in New Mexico, 11 in MPEC 2009-C84 -- 2009 CV, 2009 BL71, 2008 MB5, 2008 EE, 2006 WZ2, 2003 YX1, 52762, 36284, 162900, 141765, 4544
`J87`	La Canada Obs. in Spain, 1 in MPEC 2009-C86 -- 2009 CO5
`B33`	Libbiano Obs. in Italy, 2 in MPECs 2009-C85 & 2009-C87 -- 2009 CP5, 2009 CN5
`A06`	Mataro Obs. in Spain, 2 in MPEC 2009-C84 -- 22753, 4179
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 8 in MPECs 2009-C84, 2009-C86 & 2009-C87 -- 2009 CP5, 2009 CO5, 2001 DR8, 198752, 19764, 154988, 4179, 1980
`A53`	Peschiera del Garda Obs. in Italy, 3 in MPEC 2009-C84 -- 2009 CV, 2008 EE5, 206359
`473`	Remanzacco Obs. in Italy, 2 in MPECs 2009-C86 & 2009-C87 -- 2009 CP5, 2009 CO5
`854`	Sabino Canyon Obs. in Arizona, 3 in MPECs 2009-C85, 2009-C86 & 2009-C87 -- 2009 CP5, 2009 CO5, 2009 CN5
`434`	San Benedetto Po Obs. in Italy, 1 in MPEC 2009-C84 -- 36284
`H36`	Sandlot Obs. in Kansas, 1 in MPEC 2009-C85 -- 2009 CN5
`204`	Schiaparelli Obs. in Italy, 3 in MPECs 2009-C85, 2009-C86 & 2009-C87 -- 2009 CP5, 2009 CO5, 2009 CN5
`510`	Siegen Obs. in Germany, 1 in MPEC 2009-C84 -- 2008 EE5
`645`	Sloan Digital Sky Survey in New Mexico, 1 in MPEC 2009-C84 -- 1999 GL4
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2009-C84 -- 1993 HC
`291`	Spacewatch 1.8m telescope in Arizona, 3 in MPEC 2009-C84 -- 2009 CR4, 2009 BC58, 2001 DR8
`611`	Starkenburg Obs. in Germany, 2 in MPECs 2009-C86 & 2009-C87 -- 2009 CP5, 2009 CO5
`A55`	Vallemare di Borbona Obs. in Italy, 1 in MPEC 2009-C84 -- 1999 AQ10

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

Impact Risk Monitoring on 15 February '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 CR2	JPL Sentry	1605	2024	1	8.9e-09	-3.24	-3.24	0	JPL: "Analysis based on 27 observations spanning 10.670 days (2009-Feb-03.30293 to 2009-Feb-13.97331)." Diameter approximately 1.700 km. from mean, weighted H=16.5.
2009 CR2	NEODyS	1605	2024	1	1.17e-08	-3.17	-3.17	0	NEODyS: "Based on 27 optical observations (of which 0 are rejected as outliers) from 2009/02/03.304 to 2009/02/13.974."

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 15 February '09

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

1605

Noted that JPL Sentry has updated its 2009 CR2 risk assessment - see above
Noted that NEODyS has updated its 2009 CR2 risk assessment - see above
Grabbed MPEC 2009-C84 - Daily Orbit Update - see above
Grabbed MPEC 2009-C85 - 2009 CN5 - see above
Grabbed MPEC 2009-C86 - 2009 CO5 - see above
Grabbed MPEC 2009-C87 - 2009 CP5 - see above

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