2010-03-17 Tracking News

Contents on 17 March '10

IAU Minor Planet Center
- NEOCP Activity -- eight listings: 1 new, 7 updated
- New MPECs -- twelve MPECs
Observers -- 54 observing facilities
Impact Risk Monitoring -- five 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 17 March '10

The MPC's NEO Confirmation Page has 8 listings: 1 new, 7 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and seven updated listings. Of these, three were "one nighters." So far The Tracking News has counted a total of nineteen 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 17 March '10

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 2010-F08 time-stamped "02:45 UT" - 2010 FB - see below
MPEC 2010-F09 time-stamped "02:51 UT" - 2010 FC - see below
MPEC 2010-F10 time-stamped "02:55 UT" - 2010 FD - see below
MPEC 2010-F11 time-stamped "15:21 UT" - Daily Orbit Update - see below
MPEC 2010-F12 time-stamped "17:35 UT" - 2010 EB46 - see below
MPEC 2010-F13 time-stamped "17:46 UT" - 2010 EC46 - see below
MPEC 2010-F14 time-stamped "18:46 UT" - Comet C/2010 E5 (Scotti) - see below
MPEC 2010-F15 time-stamped "19:21 UT" - Comet P/2010 A1 (Hill) - see below
MPEC 2010-F16 time-stamped "19:30 UT" - Comet P/2010 A2 (LINEAR) - see below
MPEC 2010-F17 time-stamped "19:49 UT" - 1998 KN3 - see below
MPEC 2010-F18 time-stamped "20:10 UT" - Comet P/2010 A5 (LINEAR) - see below
MPEC 2010-F19 time-stamped "20:31 UT" - Comet C/2010 B1 (Cardinal)

MPEC 2010-F19 - "20:31 UT" - Comet C/2010 B1 (Cardinal)

CK10B010 C/2010 B1 (Cardinal) (i=102.0°, q=2.941 AU, Q=5863.034 AU, TP=2011 Feb. 7.07970 TT) from Kiev Comet Station (March 4.05-07p12), Remanzacco Obs. (March 4.86p2), Ageo Obs. (March 11.69-70p2), Cielo Profundo Obs. (March 12.84-87p3), CAST Obs. (March 12.89p1), Rodeno Obs. (March 13.81-82p3), Jaen Obs. (March 13.92-94p3), Betelgeuse Station (March 15.86-87p2 & 16.84p2), Ottmarsheim Obs. (March 16.80-81p3), and Montcabre Obs. (March 16.84-87p3)

MPEC 2010-F18 - "20:10 UT" - Comet P/2010 A5 (LINEAR)

PK10A050 P/2010 A5 (LINEAR) (q=1.712 AU, Q=8.466 AU, TP=2010 Apr. 19.35715 TT) from Kiev Comet Station (March 4.13-15p4), Tzec Maun Obs. Moorook (March 11.73-76p2 & 12.75-76p2), Sendai Obs. (March 11.78-79p2 & 13.74p2), Astronomical Research Obs. Westfield (ARO Westfield) (March 12.37-39p3), Ageo Obs. (March 12.79-80p2), Schiaparelli Obs. (March 13.14-17p2), Tzec Maun Obs. Mayhill (March 13.38-41p3), Zvezdno Obshtestvo Obs. (March 14.15p3), Montcabre Obs. (March 14.16-17p3), and Vicksburg Obs. (March 16.46-47p5)

MPEC 2010-F17 - "19:49 UT" - 1998 KN3

J98K03N 1998 KN3 (q=0.195 AU, Earth MOID=6.9 LD, H=18.4 ~708m) from LINEAR (March 14.22-26p5), the Spacewatch 1.8m telescope (March 17.32-34p3), and Berta Obs. (March 17.79-80p4)

MPEC 2010-F16 - "19:30 UT" - Comet P/2010 A2 (LINEAR)

PK10A020 P/2010 A2 (LINEAR) (q=2.006 AU, TP=2009 Dec. 4.67084 TT) from LINEAR (2009 Dec. 10.32-37p5, 2009 Dec. 15.32-37p5 & 2009 Dec. 16.32-37p5), Maidbronn Obs. (March 11.86-90p3), and Chante-Perdrix Obs. (March 13.79-82p3)

MPEC 2010-F15 - "19:21 UT" - Comet P/2010 A1 (Hill)

PK10A010 P/2010 A1 (Hill) (q=1.950 AU, Q=6.799 AU, TP=2009 Aug. 6.81173 TT) from Remanzacco Obs. (Feb. 6.98-99p2), Maisoncelles Obs. (March 11.95p1), Ottmarsheim Obs. (March 16.83p1), and ARO Westfield (March 17.12-14p3)

MPEC 2010-F14 - "18:46 UT" - Comet C/2010 E5 (Scotti)

CK10E050 C/2010 E5 (Scotti) (i=27.9°, q=4.025 AU, TP=2011 Jan. 20.812 TT) from the Spacewatch 0.9m telescope (March 14.23-27p3), Spacewatch 1.8m (March 14.32-33p3, 15.35p3 & 17.43-44p3), Great Shefford Obs. (March 15.03-04p3), Tenagra II Obs. (March 15.35-36p3, 16.38-39p3 & 17.34-35p3), Mt. John Obs. (March 15.53-54p5), Schiaparelli Obs. (March 17.01p1 & 17.06p1), Libbiano Obs. (March 17.11-12p2), ARO Westfield (March 17.24-29p3), Magdalena Ridge Obs. (MRO) (March 17.36-42p4), RAS Obs. Mayhill (March 17.37-38p3 & 17.47-49p3), Tzec Maun Obs. Mayhill (March 17.43-45p3), and RAS Obs. Moorook (March 17.73-74p2)

MPEC 2010-F13 - "17:46 UT" - 2010 EC46

K10E46C 2010 EC46 (i=49.3°, H=20.1 ~323m) was discovered at 0832 UT on 13 March by the Mt. Lemmon Survey (MLS), which observed it at March 13.36-38p4. The discovery was confirmed by MRO (March 13.43-45p4).

MPEC 2010-F12 - "17:35 UT" - 2010 EB46

K10E46B 2010 EB46 (i=156.1°, Q=12.800 AU, H=19.5 ~426m) was discovered at 0900 UT on 12 March by the Catalina Sky Survey (CSS), which observed it at March 12.38-44p8. The discovery was confirmed by Mt. John Obs. (March 12.58-59p4, 15.49-50p5 & 16.49p3), Libbiano Obs. (March 12.97-99p3), Schiaparelli Obs. (March 13.08-09p2), Remanzacco Obs. (March 13.11p2), Grasslands Obs. (March 13.34p3), Tenagra II Obs. (March 13.36-37p3, 14.44-45p3, 15.34-35p3, 16.37p3 & 17.19-20p3), Desert Moon Obs. (March 14.44-46p3), Monte Baldo Obs. (March 14.92-93p5), Gnosca Obs. (March 15.89p2), Great Shefford Obs. (March 15.92-93p3), Sormano Obs. (March 15.93-94p2), New Millennium Obs. (March 15.94p4), MRO (March 17.17-18p4), ARO Westfield (March 17.28p3), and MLS (March 17.41p4).

<< DOU on 17 Mar. '10 >> MPEC 2010-F11 - "15:21 UT" - Daily Orbit Update

Observations of risk-listed objects
K10E43D 2010 ED43 (i=57.2°, arc=4 days, H=19.9 ~355m) from Tenagra II Obs. (March 16.16-18p3) and Spacewatch 1.8m (March 16.27-28p3)
K10E43C 2010 EC43 (small asteroid, Q=4.157 AU, arc=4 days, H=22.7 ~98m) from Spacewatch 1.8m (March 16.26-27p3)
K05Y55U 2005 YU55 (almost small, arc=2 opp, H=21.8 ~148m) from Spacewatch 0.9m (March 13.37-41p3)
Observations of recently (no longer) risk-listed objects
K10C44N 2010 CN44 (Q=4.782 AU, arc=30 days, H=19.7 ~389m) from Spacewatch 1.8m (March 17.17-18p3)
K10C19F 2010 CF19 (almost small, arc=31 days, H=21.9 ~141m) from Spacewatch 1.8m (March 16.28-29p3 & 17.21-22p2)
Observations of small asteroids (H>22.0)
K10F00B 2010 FB (arc=1 day, H=23.8 ~59m) from MRO (March 17.11-13p4)
K10E43E 2010 EE43 (arc=4 days, H=24.2 ~49m) from Tenagra II Obs. (March 16.19p3) and Naef Obs. (March 16.83-86p2)
K10E43B 2010 EB43 (arc=4 days, H=22.1 ~129m) from Tenagra II Obs. (March 16.21-22p3) and CSS (March 16.31-33p4)
K10CE1N 2010 CN141 (arc=30 days, H=22.3 ~117m) from David Tholen's team on Mauna Kea (March 16.29-30p3 at R=23.1-4)
K10C55C 2010 CC55 (arc=34 days, H=22.1 ~129m) from Spacewatch 1.8m (March 17.52-53p3)
K09U02D 2009 UD2 (arc=150 days, H=22.3 ~117m) from MLS (March 16.30-32p7), Petit Jean Mtn. South Obs. (PJMSO) (March 16.31-32p5), and Naef Obs. (March 16.87-91p3)
Observations of almost-small asteroids (21.7<H<=22.0)
K07M00R 2007 MR (arc=4 opp, H=21.8 ~148m) from Spacewatch 0.9m (March 13.37-40p3)
Observations of other objects
K10E44F 2010 EF44 (i=38.4°, q=0.246 AU, Q=4.180 AU, arc=2 days, H=19.9 ~355m) from Tenagra II Obs. (March 16.52p3) and Eschenberg Obs. (March 16.87-88p3)
K10E43K 2010 EK43 (arc=3 days, H=21.7 ~155m) from Schiaparelli Obs. (March 14.97-99p3) and Tenagra II Obs. (March 16.21p3)
K10E43J 2010 EJ43 (arc=3 days, H=21.0 ~214m) from Tenagra II Obs. (March 16.20p3)
K10E43H 2010 EH43 (i=37.5°, arc=4 days, H=18.8 ~589m) from Tenagra II Obs. (March 16.51p3)
K10D21M 2010 DM21 (Q=4.790 AU, arc=29 days, H=20.5 ~269m) from Spacewatch 1.8m (March 17.19-20p2)
K10D01N 2010 DN1 (arc=28 days, H=18.6 ~645m) from Spacewatch 1.8m (March 17.16p3)
K10CI0V 2010 CV180 (Q=4.904 AU, arc=29 days, H=18.6 ~645m) from LINEAR (March 16.25-32p5)
K10CI0C 2010 CC180 (arc=2 opp, H=18.7 ~616m) from PJMSO (March 16.30-31p7)
K10C44M 2010 CM44 (arc=31 days, H=19.3 ~467m) from LINEAR (March 16.33-38p5) and PJMSO (March 16.37-38p6)
K10C18L 2010 CL18 (Q=4.190 AU, arc=29 days, H=18.4 ~708m) from LINEAR (March 14.39-43p5)
K10B03B 2010 BB3 (arc=55 days, H=20.3 ~295m) from Madonna di Dossobuono Obs. (March 16.91-92p3)
K10A78B 2010 AB78 (arc=57 days, H=18.4 ~708m) from the Siding Spring Survey (SSS) (March 16.78p1)
K09U02E 2009 UE2 (arc=150 days, H=20.1 ~323m) from SSS (March 16.77-78p2)
K09F04Y 2009 FY4 (arc=2 opp, H=21.1 ~204m) from PJMSO (March 16.32p6) and Eschenberg Obs. (March 16.88-89p7)
K08E00E 2008 EE (arc=3 opp, H=19.8 ~371m) from PJMSO (March 16.24-25p5)
K07P06F 2007 PF6 (arc=2 opp, H=20.7 ~245m) from Spacewatch 1.8m (March 17.12-13p3)
K06U00R 2006 UR (arc=2 opp, H=19.4 ~446m) from SSS (March 16.54-56p2)
K06E01E 2006 EE1 (i=36.4°, arc=2 opp, H=19.8 ~371m) from PJMSO (March 16.39p6)
K06B07T 2006 BT7 (arc=5 opp, H=18.3 ~741m) from CSS (March 16.18-20p5)
K05Y93Y 2005 YY93 (q=0.302 AU, Q=4.871 AU, arc=3 opp, H=17.1 ~1.29 km) from MLS (March 16.13-15p4)
K04T18B 2004 TB18 (arc=3 opp, H=17.7 ~977m) from LINEAR (March 14.40-44p3)
K04T13R 2004 TR13 (arc=4 opp, H=18.5 ~676m) from Castelmartini Obs. (March 15.78-79p3)
K04R11A 2004 RA11 (i=39.4°, arc=3 opp, H=18.8 ~589m) from LINEAR (March 16.24-31p5)
K04R00K 2004 RK (arc=4 opp, H=19.4 ~446m) from Schiaparelli Obs. (March 15.13-15p3)
K03H11W 2003 HW11 (arc=5 opp, H=17.3 ~1.17 km) from Spacewatch 0.9m (March 14.23-25p2)
K02N16W 2002 NW16 (arc=2 opp, H=18.1 ~812m) from LINEAR (March 14.11-16p5)
K02N01P 2002 NP1 (arc=3 opp, H=17.6 ~1.02 km) from Schiaparelli Obs. (March 13.80-82p2)
K00CA1O 2000 CO101 (arc=2 opp, H=19.1 ~513m) from Castelmartini Obs. (March 15.94p3) and PJMSO (March 16.24p6)
J99R32C 1999 RC32 (arc=4 opp, H=18.4 ~708m) from LINEAR (March 14.28-32p4)
J98O01K 1998 OK1 (arc=2 opp, H=19.4 ~446m) from Eschenberg Obs. (March 16.90-92p3)
N2382 232382 from Castelmartini Obs. (March 15.95p3)
N1792 231792 from CSS (March 16.38-39p6)
L8863 218863 2006 WO127 from WISE (March 12.96p1, 13.03p1, 13.10p1, 13.16p1 & 13.23p1) and Castelmartini Obs. (March 15.85p2)
G3132 163132 2002 CU11 from Castelmartini Obs. (March 15.91-92p3) and Walnut Creek Obs. (March 16.19-20p3)
G2882 162882 2001 FD58 from Castelmartini Obs. (March 15.90-91p3)
G2038 162038 1996 DH from Jarnac Obs. (March 16.16-19p3), LINEAR (March 16.19-24p5), and CSS (March 16.25-27p4)
G1989 161989 Cacus (1978 CA) from LINEAR (March 16.10-14p3)
F9368 159368 1979 QB from Spacewatch 0.9m (March 12.26-30p3)
D8013 138013 2000 CN101 from LINEAR (March 16.20-23p4)
D6618 136618 1994 CN2 from Spacewatch 0.9m (March 16.18-22p3) and LINEAR (March 16.33-37p5)
99935 99935 2002 AV4 from CSS (March 16.15-16p4)
96590 96590 1998 XB from CSS (March 16.15-16p4)
88254 88254 2001 FM129 from Lenomiya Obs. (March 17.20p4)
86067 86067 1999 RM28 from Castelmartini Obs. (March 15.96p3)
68359 68359 2001 OZ13 from CSS (March 16.40-42p4)
68216 68216 2001 CV26 from Goodricke-Pigott Obs. (March 15.35-38p2) and Betelgeuse Sta. (March 16.05-06p3)
40267 40267 1999 GJ4 from La Sagra Obs. (March 16.05-08p3)
40263 40263 1999 FQ5 from LINEAR (March 16.33-37p5)
36183 36183 1999 TX16 from CSS (March 16.38-39p4)
35432 35432 1998 BG9 from CSS (March 16.31-33p4)
27346 27346 2000 DN8 from Castelmartini Obs. (March 15.89p3)
12923 12923 Zephyr (1999 GK4) from MLS (March 16.45-47p4)
11066 11066 Sigurd (1992 CC1) from Castelmartini Obs. (March 15.96-97p3)
07822 7822 1991 CS from LINEAR (March 14.16-20p5) and Castelmartini Obs. (March 15.86p3)
04179 4179 Toutatis (1989 AC) from Spacewatch 0.9m (March 12.44-47p3)
04055 4055 Magellan (1985 DO2) from CSS (March 16.51-52p4)
03671 3671 Dionysus (1984 KD) from CSS (March 16.34-36p4)
02061 2061 Anza (1960 UA) from Spacewatch 0.9m (March 12.27-31p3)
01036 1036 Ganymed (1924 TD) from Schiaparelli Obs. (March 13.03-06p2 & 13.10p1)

MPEC 2010-F10 - "02:55 UT" - 2010 FD

K10F00D 2010 FD (risk-listed, Q=4.668 AU, H=25.8 ~23m) was discovered at 0816 UT on 16 March by MLS, which observed it at March 16.34-39p8. The discovery was confirmed by Saint-Barthelemy Obs. (March 16.92-96p3).

MPEC 2010-F09 - "02:51 UT" - 2010 FC

K10F00C 2010 FC (small asteroid, H=23.9 ~56m) was discovered at 0726 UT on 16 March by CSS, which observed it at March 16.31-37p8. The discovery was confirmed by Sabino Canyon Obs. (March 16.43-44p3), Tenagra II Obs. (March 16.46-47p3), Monte Baldo Obs. (March 16.92-93p4), New Millennium Obs. (March 16.94p2), Schiaparelli Obs. (March 16.97-99p3), and Saint-Barthelemy Obs. (March 16.98-01p4).

MPEC 2010-F08 - "02:45 UT" - 2010 FB

K10F00B 2010 FB (small asteroid, H=23.7 ~62m) was discovered at 0646 UT on 16 March by CSS, which observed it at March 16.28-34p8. The discovery was confirmed by Sabino Canyon Obs. (March 16.38-39p3), Tenagra II Obs. (March 16.40-41p3), Monte Baldo Obs. (March 16.86-87p5), Gnosca Obs. (March 16.88-89p2), Libbiano Obs. (March 16.88-89p3), New Millennium Obs. (March 16.88-89p5), and Schiaparelli Obs. (March 16.94-96p3).

Observers on 17 March '10

A total of 54 observing facilities appear in today's MPECs.

Code	Observer / observatory
`349`	Ageo Obs. in Japan, 2 in MPECs 2010-F18 & 2010-F19 -- C/2010 B1, P/2010 A5
`H21`	Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 4 in MPECs 2010-F12, 2010-F14, 2010-F15 & 2010-F18 -- 2010 EB46, C/2010 E5, P/2010 A5, P/2010 A1
`C12`	Berta Obs. in Spain, 1 in MPEC 2010-F17 -- 1998 KN3
`B75`	Betelgeuse Station in Italy, 2 in MPECs 2010-F11 & 2010-F19 -- C/2010 B1, 68216
`235`	CAST Obs. in Italy, 1 in MPEC 2010-F19 -- C/2010 B1
`160`	Castelmartini Obs. in Italy, 10 in MPEC 2010-F11 -- 2004 TR13, 2000 CO101, 86067, 27346, 232382, 218863, 163132, 162882, 11066, 7822
`703`	Catalina Sky Survey (CSS) in Arizona, 14 in MPECs 2010-F08, 2010-F09, 2010-F11 & 2010-F12 -- 2010 FC, 2010 FB, 2010 EB46, 2010 EB43, 2006 BT7, 99935, 96590, 68359, 36183, 35432, 231792, 162038, 4055, 3671
`A77`	Chante-Perdrix Obs. in France, 1 in MPEC 2010-F16 -- P/2010 A2
`J01`	Cielo Profundo Obs. in Spain, 1 in MPEC 2010-F19 -- C/2010 B1
`448`	Desert Moon Obs. in New Mexico, 1 in MPEC 2010-F12 -- 2010 EB46
`151`	Eschenberg Obs. in Switzerland, 3 in MPEC 2010-F11 -- 2010 EF44, 2009 FY4, 1998 OK1
`143`	Gnosca Obs. in Switzerland, 2 in MPECs 2010-F08 & 2010-F12 -- 2010 FB, 2010 EB46
`683`	Goodricke-Pigott Obs. in Arizona, 1 in MPEC 2010-F11 -- 68216
`651`	Grasslands Obs. in Arizona, 1 in MPEC 2010-F12 -- 2010 EB46
`J95`	Great Shefford Obs. in England, 2 in MPECs 2010-F12 & 2010-F14 -- 2010 EB46, C/2010 E5
`J28`	Jaen Obs. in Spain, 1 in MPEC 2010-F19 -- C/2010 B1
`G92`	Jarnac Obs. in Arizona, 1 in MPEC 2010-F11 -- 162038
`585`	Kiev Comet Station in the Ukraine, 2 in MPECs 2010-F18 & 2010-F19 -- C/2010 B1, P/2010 A5
`704`	LINEAR in New Mexico, 15 in MPECs 2010-F11, 2010-F16 & 2010-F17 -- 2010 CV180, 2010 CM44, 2010 CL18, P/2010 A2, 2004 TB18, 2004 RA11, 2002 NW16, 1999 RC32, 1998 KN3, 40263, 162038, 161989, 138013, 136618, 7822
`J75`	La Sagra Obs. in Spain, 1 in MPEC 2010-F11 -- 40267
`H13`	Lenomiya Obs. in Arizona, 1 in MPEC 2010-F11 -- 88254
`B33`	Libbiano Obs. in Italy, 3 in MPECs 2010-F08, 2010-F12 & 2010-F14 -- 2010 FB, 2010 EB46, C/2010 E5
`560`	Madonna di Dossobuono Obs. in Italy, 1 in MPEC 2010-F11 -- 2010 BB3
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 4 in MPECs 2010-F11, 2010-F12, 2010-F13 & 2010-F14 -- 2010 FB, 2010 EC46, 2010 EB46, C/2010 E5
`B82`	Maidbronn Obs. in Germany, 1 in MPEC 2010-F16 -- P/2010 A2
`C10`	Maisoncelles Obs. in France, 1 in MPEC 2010-F15 -- P/2010 A1
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-F11 -- 2010 CN141
`213`	Montcabre Obs. in Spain, 2 in MPECs 2010-F18 & 2010-F19 -- C/2010 B1, P/2010 A5
`A99`	Monte Baldo Obs. in Italy, 3 in MPECs 2010-F08, 2010-F09 & 2010-F12 -- 2010 FC, 2010 FB, 2010 EB46
`474`	Mt. John Obs. in New Zealand, 2 in MPECs 2010-F12 & 2010-F14 -- 2010 EB46, C/2010 E5
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 6 in MPECs 2010-F10, 2010-F11, 2010-F12 & 2010-F13 -- 2010 FD, 2010 EC46, 2010 EB46, 2009 UD2, 2005 YY93, 12923
`A13`	Naef Obs. in Switzerland, 2 in MPEC 2010-F11 -- 2010 EE43, 2009 UD2
`A24`	New Millennium Obs. in Italy, 3 in MPECs 2010-F08, 2010-F09 & 2010-F12 -- 2010 FC, 2010 FB, 2010 EB46
`224`	Ottmarsheim Obs. in France, 2 in MPECs 2010-F15 & 2010-F19 -- C/2010 B1, P/2010 A1
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPEC 2010-F11 -- 2010 CM44, 2010 CC180, 2009 UD2, 2009 FY4, 2008 EE, 2006 EE1, 2000 CO101
`H06`	RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-F14 -- C/2010 E5
`D90`	RAS Obs. Moorook in South Australia, 1 in MPEC 2010-F14 -- C/2010 E5
`473`	Remanzacco Obs. in Italy, 3 in MPECs 2010-F12, 2010-F15 & 2010-F19 -- 2010 EB46, C/2010 B1, P/2010 A1
`939`	Rodeno Obs. in Spain, 1 in MPEC 2010-F19 -- C/2010 B1
`854`	Sabino Canyon Obs. in Arizona, 2 in MPECs 2010-F08 & 2010-F09 -- 2010 FC, 2010 FB
`B04`	Saint-Barthelemy Obs. in Italy, 2 in MPECs 2010-F09 & 2010-F10 -- 2010 FD, 2010 FC
`204`	Schiaparelli Obs. in Italy, 9 in MPECs 2010-F08, 2010-F09, 2010-F11, 2010-F12, 2010-F14 & 2010-F18 -- 2010 FC, 2010 FB, 2010 EK43, 2010 EB46, C/2010 E5, P/2010 A5, 2004 RK, 2002 NP1, 1036
`D93`	Sendai Obs. in Japan, 1 in MPEC 2010-F18 -- P/2010 A5
`E12`	Siding Spring Survey (SSS) in New South Wales, 3 in MPEC 2010-F11 -- 2010 AB78, 2009 UE2, 2006 UR
`587`	Sormano Obs. in Italy, 1 in MPEC 2010-F12 -- 2010 EB46
`691`	Spacewatch 0.9m telescope in Arizona, 8 in MPECs 2010-F11 & 2010-F14 -- C/2010 E5, 2007 MR, 2005 YU55, 2003 HW11, 159368, 136618, 4179, 2061
`291`	Spacewatch 1.8m telescope in Arizona, 10 in MPECs 2010-F11, 2010-F14 & 2010-F17 -- 2010 ED43, 2010 EC43, C/2010 E5, 2010 DN1, 2010 DM21, 2010 CN44, 2010 CF19, 2010 CC55, 2007 PF6, 1998 KN3
`926`	Tenagra II Obs. in Arizona, 11 in MPECs 2010-F08, 2010-F09, 2010-F11, 2010-F12 & 2010-F14 -- 2010 FC, 2010 FB, 2010 EK43, 2010 EJ43, 2010 EH43, 2010 EF44, 2010 EE43, 2010 ED43, 2010 EB46, 2010 EB43, C/2010 E5
`H10`	Tzec Maun Obs. Mayhill in New Mexico, 2 in MPECs 2010-F14 & 2010-F18 -- C/2010 E5, P/2010 A5
`D96`	Tzec Maun Obs. Moorook in South Australia, 1 in MPEC 2010-F18 -- P/2010 A5
`H47`	Vicksburg Obs. in Mississippi, 1 in MPEC 2010-F18 -- P/2010 A5
`C51`	WISE in Earth polar orbit, 1 in MPEC 2010-F11 -- 218863
`G56`	Walnut Creek Obs. in northern California, 1 in MPEC 2010-F11 -- 163132
`A79`	Zvezdno Obshtestvo Obs. in Bulgaria, 1 in MPEC 2010-F18 -- P/2010 A5

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

Impact Risk Monitoring on 17 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 FD	JPL Sentry	1436	2034-2107	38	1.5e-06	-6.08	-6.45	0	JPL: "Analysis based on 11 observations spanning .61635 days (2010-Mar-16.34477 to 2010-Mar-16.96112)." Diameter approximately 0.023 km. from mean, weighted H=25.8.
2010 FD	NEODyS	1436	2034-2062	4	5.94e-07	-6.50	-6.70	0	NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2010/03/16.346 to 2010/03/16.962."

2010 EA46	NEODyS	1436	2023-2089	14	6.78e-07	-5.55	-5.90	0	NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2010/03/15.398 to 2010/03/16.489."

2010 EW45	NEODyS	1716	2011-2090	35	3.47e-08	-2.57	-2.76	0	NEODyS: "Based on 20 optical observations (of which 0 are rejected as outliers) from 2010/03/15.110 to 2010/03/16.124."

2010 ED43	NEODyS	1852	R E M O V E D						-
2010 ED43	JPL Sentry	1852	R E M O V E D						JPL: Risk listing removed at 1851 UTC.

2010 EC43	NEODyS	1853	2063-2084	3	4.65e-10	-8.27	-8.39	0	NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2010/03/13.186 to 2010/03/16.266."
2010 EC43	JPL Sentry	1852	2086-2103	4	1.2e-07	-6.08	-6.21	0	JPL: "Analysis based on 17 observations spanning 3.0799 days (2010-Mar-13.18571 to 2010-Mar-16.26556)." Diameter approximately 0.095 km. from mean, weighted H=22.8.

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 17 March '10

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

2238	Grabbed MPEC 2010-F18 - Comet P/2010 A5 (LINEAR) - see above Grabbed MPEC 2010-F19 - Comet C/2010 B1 (Cardinal) - see above
2000	Grabbed MPEC 2010-F14 - Comet C/2010 E5 (Scotti) - see above Grabbed MPEC 2010-F15 - Comet P/2010 A1 (Hill) - see above Grabbed MPEC 2010-F16 - Comet P/2010 A2 (LINEAR) - see above Grabbed MPEC 2010-F17 - 1998 KN3 - see above
1853	Noted that NEODyS has updated its 2010 EC43 risk assessment - see above
1852	Noted that JPL Sentry has updated its 2010 EC43 risk assessment - see above Noted that JPL Sentry has removed 2010 ED43 as an impact risk - see above Noted that NEODyS has removed 2010 ED43 as an impact risk - see above
1800	Grabbed MPEC 2010-F11 - Daily Orbit Update - see above Grabbed MPEC 2010-F12 - 2010 EB46 - see above Grabbed MPEC 2010-F13 - 2010 EC46 - see above
1716	Noted that NEODyS has posted 2010 EW45 as an impact risk - see above
1436	Noted that NEODyS has posted 2010 EA46 as an impact risk - see above Noted that JPL Sentry has posted 2010 FD as an impact risk - see above Noted that NEODyS has posted 2010 FD as an impact risk - see above
0319	Grabbed MPEC 2010-F09 - 2010 FC - see above Grabbed MPEC 2010-F10 - 2010 FD - see above
0250	Grabbed MPEC 2010-F08 - 2010 FB - see above

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