2009-02-19 Tracking News

Contents on 19 February '09

IAU Minor Planet Center
- NEOCP Activity -- five listings: 1 new, 4 updated
- New MPECs -- twelve MPECs
Observers -- 27 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 19 February '09

The MPC's NEO Confirmation Page has 5 listings: 1 new, 4 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and four updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of eighteen 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 19 February '09

Minor Planet Electronic Circulars

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

MPEC 2009-D22 time-stamped "07:07 UT" - Daily Orbit Update - see below
MPEC 2009-D23 time-stamped "14:28 UT" - 2009 BD2 - see below
MPEC 2009-D24 time-stamped "14:34 UT" - 2009 DV - see below
MPEC 2009-D25 time-stamped "14:38 UT" - 2009 DW - see below
MPEC 2009-D26 time-stamped "14:43 UT" - 2009 DX - see below
MPEC 2009-D27 time-stamped "23:35 UT" - 2009 DZ - see below
MPEC 2009-D28 time-stamped "23:38 UT" - 2009 DA1 - see below
MPEC 2009-D29 time-stamped "23:41 UT" - 2009 DB1 - see below
MPEC 2009-D30 time-stamped "23:45 UT" - 2009 DC1 - see below
MPEC 2009-D31 time-stamped "23:47 UT" - 2009 DD1 - see below
MPEC 2009-D32 time-stamped "23:50 UT" - 2009 DE1 - see below
MPEC 2009-D33 time-stamped "23:53 UT" - 2009 DF1

MPEC 2009-D33 - "23:53 UT" - 2009 DF1

K09D01F 2009 DF1 (H=20.5 ~269m) was discovered at 1034 UT on 19 Feb. by the Catalina Sky Survey (CSS), which observed it at Feb. 19.44-52p7. The discovery was confirmed by Magdalena Ridge Obs. (MRO) (Feb. 19.51-53p4) and Libbiano Obs. (Feb. 19.94-95p3).

MPEC 2009-D32 - "23:50 UT" - 2009 DE1

K09D01E 2009 DE1 (small asteroid, Earth MOID=0.2 LD, H=24.3 ~47m) was discovered at 0920 UT on 19 Feb. by CSS, which observed it at Feb. 19.39-47p12. The discovery was confirmed by MRO (Feb. 19.47-48p4) and Calar Alto Obs. (Feb. 19.94p3).

MPEC 2009-D31 - "23:47 UT" - 2009 DD1

K09D01D 2009 DD1 (H=20.3 ~295m) was discovered at 0734 UT on 19 Feb. by CSS, which observed it at Feb. 19.32-37p7. The discovery was confirmed by LINEAR (Feb. 19.30-32p3), MRO (Feb. 19.37-38p5), Sabino Canyon Obs. (Feb. 19.37-38p3), San Marcello Pistoiese Obs. (Feb. 19.84-85p3), Sormano Obs. (Feb. 19.85-87p4), Gnosca Obs. (Feb. 19.87p1 & 19.93p1), Calar Alto Obs. (Feb. 19.88p3), Schiaparelli Obs. (Feb. 19.89-90p3), and Naef Obs. (Feb. 19.93-95p4).

MPEC 2009-D30 - "23:45 UT" - 2009 DC1

K09D01C 2009 DC1 (small asteroid, H=24.0 ~54m) was discovered at 0645 UT on 19 Feb. by CSS, which observed it at Feb. 19.28-34p8. The discovery was confirmed by MRO (Feb. 19.34-35p5), Sabino Canyon Obs. (Feb. 19.36p3), San Marcello Pistoiese Obs. (Feb. 19.88-89p3), Calar Alto Obs. (Feb. 19.89p3), Gnosca Obs. (Feb. 19.90-91p2), and Sormano Obs. (Feb. 19.91-92p3).

MPEC 2009-D29 - "23:41 UT" - 2009 DB1

K09D01B 2009 DB1 (small asteroid, H=22.9 ~89m) was discovered at 0525 UT on 19 Feb. by CSS, which observed it at Feb. 19.23-27p7. The discovery was confirmed by MRO (Feb. 19.31-33p5), Sabino Canyon Obs. (Feb. 19.32p3), Calar Alto Obs. (Feb. 19.80p3), Gnosca Obs. (Feb. 19.83-85p3), Sormano Obs. (Feb. 19.84p4), Farra d'Isonzo Obs. (Feb. 19.85-88p3), Schiaparelli Obs. (Feb. 19.87-88p2), New Millennium Obs. (Feb. 19.88-89p3), Pla D'Arguines Obs. (Feb. 19.90p4), and Naef Obs. (Feb. 19.93-95p4).

MPEC 2009-D28 - "23:38 UT" - 2009 DA1

K09D01A 2009 DA1 (small asteroid, Q=4.286 AU, H=22.3 ~117m) was discovered at 0130 UT on 19 Feb. by La Sagra Obs., which observed it at Feb. 19.06-09p3 and 19.88-90p5. The discovery was confirmed by Calar Alto Obs. (Feb. 19.88-89p3 & 19.94p3) and Pla D'Arguines Obs. (Feb. 19.92p4).

MPEC 2009-D27 - "23:35 UT" - 2009 DZ

K09D00Z 2009 DZ (H=21.4 ~178m) was discovered at 0334 UT on 18 Feb. by LINEAR, which observed it at Feb. 18.15-20p5 and 19.09-12p4.

MPEC 2009-D26 - "14:43 UT" - 2009 DX

K09D00X 2009 DX (small asteroid, H=24.7 ~39m) was discovered at 0755 UT on 18 Feb. by LINEAR, which observed it at Feb. 18.33-37p4. The discovery was confirmed by MRO (Feb. 19.25-27p4) and Sabino Canyon Obs. (Feb. 19.29-30p3).

MPEC 2009-D25 - "14:38 UT" - 2009 DW

K09D00W 2009 DW (small asteroid, Earth MOID=8.8 LD, H=25.8 ~23m) was discovered at 0745 UT on 17 Feb. by LINEAR, which observed it at Feb. 17.32-37p5 and 18.33-36p4. The discovery was confirmed by Schiaparelli Obs. (Feb. 19.21p2) and MRO (Feb. 19.29p3).

MPEC 2009-D24 - "14:34 UT" - 2009 DV

K09D00V 2009 DV (small asteroid, Earth MOID=3.8 LD, H=24.7 ~39m) was discovered at 0652 UT on 17 Feb. by LINEAR, which observed it at Feb. 17.29-32p4 and 18.26-30p4. The discovery was confirmed by Libbiano Obs. (Feb. 19.09-12p5), Schiaparelli Obs. (Feb. 19.12-13p2), MRO (Feb. 19.14-16p5), and Sabino Canyon Obs. (Feb. 19.19-20p3).

MPEC 2009-D23 - "14:28 UT" - 2009 BD2

K09B02D 2009 BD2 (H=17.6 ~1.02 km) from CSS (Jan. 19.45-47p4 & Feb. 19.28-33p8), the Siding Spring Survey (SSS) (Jan. 30.67-68p2 & 31.67-69p4), and the Spacewatch 1.8m telescope (Feb. 5.31-32p3)

<< DOU on 19 Feb. '09 >> MPEC 2009-D22 - "07:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K09C05V 2009 CV5 (small asteroid, arc=2 days, H=24.8 ~37m) from Astronomical Research Obs. (ARO) (Feb. 17.24-25p8)
K09C02R 2009 CR2 (Q=5.033 AU, arc=16 days, H=16.5 ~1.70 km) from Guidestar Obs. (Feb. 18.83-84p3)
Observations of recently (no longer) risk-listed objects
K09C03C 2009 CC3 (arc=14 days, H=18.9 ~562m) from SSS (Feb. 18.78p2)
K09C02A 2009 CA2 (arc=14 days, H=18.7 ~616m) from ARO (Feb. 17.41p3)
K09C00V 2009 CV (small asteroid, arc=16 days, H=24.2 ~49m) from ARO (Feb. 17.36-37p7) and Wildberg Obs. (Feb. 18.77-79p6)
K09C00T 2009 CT (arc=16 days, H=19.5 ~426m) from SSS (Feb. 18.79p2)
K09C00S 2009 CS (arc=15 days, H=19.7 ~389m) from ARO (Feb. 17.34-35p3)
K09B81D 2009 BD81 (arc=17 days, H=20.6 ~257m) from Smolyan Obs. (Feb. 5.78-81p4)
Observations of other objects
K09C05T 2009 CT5 (q=0.279 AU, arc=4 days, H=18.6 ~645m) from Verona Obs. (Feb. 18.88-89p4)
K09C05P 2009 CP5 (arc=5 days, H=21.3 ~186m) from ARO (Feb. 17.26-27p4) and Guidestar Obs. (Feb. 18.80-82p3)
K09C01W 2009 CW1 (arc=14 days, H=21.7 ~155m) from ARO (Feb. 17.31-32p3)
K09C01Q 2009 CQ1 (arc=30 days, H=20.5 ~269m) from Guidestar Obs. (Feb. 18.77-79p3)
K09B77D 2009 BD77 (arc=19 days, H=20.4 ~282m) from Hamamatsu-Yuto Obs. (Feb. 18.74-77p8)
K09B11B 2009 BB11 (arc=23 days, H=19.3 ~467m) from ARO (Feb. 17.38-39p4)
K09B02M 2009 BM2 (Q=4.280 AU, arc=30 days, H=19.9 ~355m) from ARO (Feb. 17.39-40p3)
K09A16H 2009 AH16 (arc=33 days, H=17.5 ~1.07 km) from ARO (Feb. 17.41p3)
K09A16F 2009 AF16 (arc=33 days, H=21.2 ~195m) from ARO (Feb. 17.17-18p3)
K08Y02R 2008 YR2 (arc=58 days, H=18.9 ~562m) from ARO (Feb. 17.29-30p6)
K08X02P 2008 XP2 (arc=74 days, H=18.5 ~676m) from ARO (Feb. 17.35-36p3)
K08W60L 2008 WL60 (arc=87 days, H=18.2 ~776m) from Guidestar Obs. (Feb. 18.86-87p3)
K08R98M 2008 RM98 (Q=4.198 AU, arc=165 days, H=20.5 ~269m) from Castelmartini Obs. (Feb. 18.88-89p3)
K08Q03T 2008 QT3 (arc=178 days, H=18.8 ~589m) from ARO (Feb. 17.16-17p4) and Castelmartini Obs. (Feb. 18.85-86p5)
K08E05E 2008 EE5 (i=44.8°, arc=2 opp, H=19.6 ~407m) from Hamamatsu-Yuto Obs. (Feb. 17.47-50p4 & 18.50-53p7)
K08E00E 2008 EE (arc=2 opp, H=19.7 ~389m) from El Guijo Obs. (Feb. 17.98-00p3)
K08CB6H 2008 CH116 (q=0.273 AU, arc=2 opp, H=19.0 ~537m) from Bergen-Enkheim Obs. (Feb. 18.17-21p3)
K06W02Z 2006 WZ2 (arc=3 opp, H=16.9 ~1.41 km) from Hamamatsu-Yuto Obs. (Feb. 17.64-68p8 & 18.66-70p6) and El Guijo Obs. (Feb. 17.95-97p3)
K06G02Q 2006 GQ2 (arc=3 opp, H=18.0 ~851m) from LINEAR (Feb. 18.46-49p3)
K06B10C 2006 BC10 (arc=3 opp, H=19.4 ~446m) from ARO (Feb. 17.32-33p5)
K05N01J 2005 NJ1 (arc=4 opp, H=18.5 ~676m) from ARO (Feb. 17.33-34p4) and LINEAR (Feb. 18.27-32p4)
K05E00F 2005 EF (arc=2 opp, H=20.7 ~245m) from Bergen-Enkheim Obs. (Feb. 18.01-04p2 & 18.09p1)
K05C25W 2005 CW25 (arc=4 opp, H=18.6 ~645m) from ARO (Feb. 17.27-28p4)
K03D04N 2003 DN4 (i=36.3°, arc=3 opp, H=19.3 ~467m) from ARO (Feb. 17.23-24p3)
K02E03B 2002 EB3 (arc=5 opp, H=17.7 ~977m) from SSS (Feb. 18.72-74p4)
K00B19L 2000 BL19 (Q=4.472 AU, arc=2 opp, H=19.9 ~355m) from ARO (Feb. 17.31p5) and Hamamatsu-Yuto Obs. (Feb. 17.51-55p5, 18.55p3 & 18.63-65p9)
J98Q02E 1998 QE2 (arc=5 opp, H=16.5 ~1.70 km) from ARO (Feb. 17.22-23p3)
K6910 206910 2004 NL8 from Schiaparelli Obs. (Feb. 12.14-15p3) and SSS (Feb. 18.60-62p4)
G2385 162385 2000 BM19 from LINEAR (Feb. 13.46-48p3)
G2080 162080 1998 DG16 from Guidestar Obs. (Feb. 18.88-90p3)
G1989 161989 Cacus (1978 CA) from SSS (Feb. 18.76-77p3)
E4411 144411 2004 EW9 from LINEAR (Feb. 18.28-32p4)
D8883 138883 2000 YL29 from Wildberg Obs. (Feb. 19.09-10p2)
D7925 137925 2000 BJ19 from Castelmartini Obs. (Feb. 18.89-90p5)
35396 35396 1997 XF11 from SSS (Feb. 18.60-62p4)
04179 4179 Toutatis (1989 AC) from Washington D.C. Obs. (Feb. 7.26p2 & 17.20p2)
03122 3122 Florence (1981 ET3) from LINEAR (Feb. 18.27-32p5)

Observers on 19 February '09

A total of 27 observing facilities appear in today's MPECs.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 19 in MPEC 2009-D22 -- 2009 CW1, 2009 CV5, 2009 CV, 2009 CS, 2009 CP5, 2009 CA2, 2009 BM2, 2009 BB11, 2009 AH16, 2009 AF16, 2008 YR2, 2008 XP2, 2008 QT3, 2006 BC10, 2005 NJ1, 2005 CW25, 2003 DN4, 2000 BL19, 1998 QE2
`A74`	Bergen-Enkheim Obs. in Germany, 2 in MPEC 2009-D22 -- 2008 CH116, 2005 EF
`493`	Calar Alto Obs. in Spain, 5 in MPECs 2009-D28, 2009-D29, 2009-D30, 2009-D31 & 2009-D32 -- 2009 DE1, 2009 DD1, 2009 DC1, 2009 DB1, 2009 DA1
`160`	Castelmartini Obs. in Italy, 3 in MPEC 2009-D22 -- 2008 RM98, 2008 QT3, 137925
`703`	Catalina Sky Survey (CSS) in Arizona, 6 in MPECs 2009-D23, 2009-D29, 2009-D30, 2009-D31, 2009-D32 & 2009-D33 -- 2009 DF1, 2009 DE1, 2009 DD1, 2009 DC1, 2009 DB1, 2009 BD2
`J27`	El Guijo Obs. in Spain, 2 in MPEC 2009-D22 -- 2008 EE, 2006 WZ2
`595`	Farra d'Isonzo Obs. in Italy, 1 in MPEC 2009-D29 -- 2009 DB1
`143`	Gnosca Obs. in Switzerland, 3 in MPECs 2009-D29, 2009-D30 & 2009-D31 -- 2009 DD1, 2009 DC1, 2009 DB1
`A17`	Guidestar Obs. in Germany, 5 in MPEC 2009-D22 -- 2009 CR2, 2009 CQ1, 2009 CP5, 2008 WL60, 162080
`379`	Hamamatsu-Yuto Obs. in Japan, 4 in MPEC 2009-D22 -- 2009 BD77, 2008 EE5, 2006 WZ2, 2000 BL19
`704`	LINEAR in New Mexico, 10 in MPECs 2009-D22, 2009-D24, 2009-D25, 2009-D26, 2009-D27 & 2009-D31 -- 2009 DZ, 2009 DX, 2009 DW, 2009 DV, 2009 DD1, 2006 GQ2, 2005 NJ1, 162385, 144411, 3122
`J75`	La Sagra Obs. in Spain, 1 in MPEC 2009-D28 -- 2009 DA1
`B33`	Libbiano Obs. in Italy, 2 in MPECs 2009-D24 & 2009-D33 -- 2009 DV, 2009 DF1
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 8 in MPECs 2009-D24, 2009-D25, 2009-D26, 2009-D29, 2009-D30, 2009-D31, 2009-D32 & 2009-D33 -- 2009 DX, 2009 DW, 2009 DV, 2009 DF1, 2009 DE1, 2009 DD1, 2009 DC1, 2009 DB1
`A13`	Naef Obs. in Switzerland, 2 in MPECs 2009-D29 & 2009-D31 -- 2009 DD1, 2009 DB1
`A24`	New Millennium Obs. in Italy, 1 in MPEC 2009-D29 -- 2009 DB1
`941`	Pla D'Arguines Obs. in Spain, 2 in MPECs 2009-D28 & 2009-D29 -- 2009 DB1, 2009 DA1
`854`	Sabino Canyon Obs. in Arizona, 5 in MPECs 2009-D24, 2009-D26, 2009-D29, 2009-D30 & 2009-D31 -- 2009 DX, 2009 DV, 2009 DD1, 2009 DC1, 2009 DB1
`104`	San Marcello Pistoiese Obs. in Italy, 2 in MPECs 2009-D30 & 2009-D31 -- 2009 DD1, 2009 DC1
`204`	Schiaparelli Obs. in Italy, 5 in MPECs 2009-D22, 2009-D24, 2009-D25, 2009-D29 & 2009-D31 -- 2009 DW, 2009 DV, 2009 DD1, 2009 DB1, 206910
`E12`	Siding Spring Survey (SSS) in New South Wales, 7 in MPECs 2009-D22 & 2009-D23 -- 2009 CT, 2009 CC3, 2009 BD2, 2002 EB3, 35396, 206910, 161989
`071`	Smolyan Obs. in Bulgaria, 1 in MPEC 2009-D22 -- 2009 BD81
`587`	Sormano Obs. in Italy, 3 in MPECs 2009-D29, 2009-D30 & 2009-D31 -- 2009 DD1, 2009 DC1, 2009 DB1
`291`	Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2009-D23 -- 2009 BD2
`A48`	Verona Obs. in Italy, 1 in MPEC 2009-D22 -- 2009 CT5
`I13`	Washington D.C. Obs. in Washington, D.C., 1 in MPEC 2009-D22 -- 4179
`198`	Wildberg Obs. in Germany, 2 in MPEC 2009-D22 -- 2009 CV, 138883

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

Impact Risk Monitoring on 19 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 CV5	JPL Sentry	1426	R E M O V E D						JPL: Risk listing removed at 0951 UTC.
2009 CV5	NEODyS	1426	R E M O V E D						-

2009 CR2	JPL Sentry	1426	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 19 February '09

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

2358	Grabbed MPEC 2009-D27 - 2009 DZ - see above Grabbed MPEC 2009-D28 - 2009 DA1 - see above Grabbed MPEC 2009-D29 - 2009 DB1 - see above Grabbed MPEC 2009-D30 - 2009 DC1 - see above Grabbed MPEC 2009-D31 - 2009 DD1 - see above Grabbed MPEC 2009-D32 - 2009 DE1 - see above Grabbed MPEC 2009-D33 - 2009 DF1 - see above
1458	Grabbed MPEC 2009-D23 - 2009 BD2 - see above Grabbed MPEC 2009-D24 - 2009 DV - see above Grabbed MPEC 2009-D25 - 2009 DW - see above Grabbed MPEC 2009-D26 - 2009 DX - see above
1426	Noted that JPL Sentry has removed 2009 CR2 as an impact risk - see above Noted that JPL Sentry has removed 2009 CV5 as an impact risk - see above Noted that NEODyS has removed 2009 CV5 as an impact risk - see above Grabbed MPEC 2009-D22 - Daily Orbit Update - see above

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