2010-03-12 Tracking News

Contents on 12 March '10

IAU Minor Planet Center
- NEOCP Activity -- six listings: 2 new, 4 updated
- New MPECs -- nine MPECs
Observers -- 65 observing facilities
Impact Risk Monitoring -- three 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 12 March '10

The MPC's NEO Confirmation Page has 6 listings: 2 new, 4 updated

When last checked at 2300 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and four updated listings. Of these, three were "one nighters." So far The Tracking News has counted a total of ten 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 12 March '10

Minor Planet Electronic Circulars

As of last check at 2300 UTC, there have been nine MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2010-E52 time-stamped "07:07 UT" - Daily Orbit Update - see below
MPEC 2010-E53 time-stamped "12:57 UT" - 2010 EF21 - see below
MPEC 2010-E54 time-stamped "13:36 UT" - 2010 EG21 - see below
MPEC 2010-E55 time-stamped "15:51 UT" - Comet C/2010 B1 (Cardinal) - see below
MPEC 2010-E56 time-stamped "15:59 UT" - Comet P/2010 D2 (WISE) - see below
MPEC 2010-E57 time-stamped "16:43 UT" - Observations of Comets - see below
MPEC 2010-E58 time-stamped "16:57 UT" - 2005 SC71 - see below
MPEC 2010-E59 time-stamped "20:28 UT" - Comet C/2010 E1 (Garradd) - see below
MPEC 2010-E60 time-stamped "21:04 UT" - 2010 EK12

MPEC 2010-E60 - "21:04 UT" - 2010 EK12

K10E12K 2010 EK12 (H=17.9 ~891m) from LONEOS (2000 July 29.32-35p4) and the Sloan Digital Sky Survey (SDSS) (2002 Dec. 6.38p2 at V=21.37-22.19)

MPEC 2010-E59 - "20:28 UT" - Comet C/2010 E1 (Garradd)

CK10E010 C/2010 E1 (Garradd) (i=71.7°, q=2.561 AU, TP=2009 Oct. 24.604 TT) from the Siding Spring Survey (SSS) (March 11.57-60p3 & 12.55p1), Astronomical Research Obs. Westfield (ARO Westfield) (March 12.13-14p3), RAS Obs. Mayhill (March 12.14-15p3 & 12.21-23p2), Tenagra II Obs. (March 12.30-31p3), Tzec Maun Obs. Mayhill (March 12.32-33p3), Mt. John Obs. (March 12.39p4), Tzec Maun Obs. Moorook (March 12.44-46p3), and RAS Obs. Moorook (March 12.67-68p2)

MPEC 2010-E58 - "16:57 UT" - 2005 SC71

K05S71C 2005 SC71 (H=18.3 ~741m) from Tenagra II Obs. (March 11.36p1 & 12.43-46p3)

MPEC 2010-E57 - "16:43 UT" - Observations of Comets

PK10C010 P/2010 C1 (Scotti) from Schiaparelli Obs. (March 5.97p1 & 6.11p1) and Maidbronn Obs. (March 8.08-14p4)
CK10A040 C/2010 A4 (Siding Spring) from Montcabre Obs. (Feb. 26.94-95p2), North Ryde Obs. (March 6.44-46p2), and Kambah Obs. (March 11.53-54p2)
PK10A030 P/2010 A3 (Hill) from CAST Obs. (March 5.83p1), Altamira Obs. (March 6.87p3), Maidbronn Obs. (March 7.80p3), Buchloe Obs. (March 7.84p3), Rodeno Obs. (March 8.81-82p3), Modra Obs. (March 9.77-78p7), RAS Mayhill (March 10.14p3), Kurihara Obs. (March 11.46-47p3), and Sendai Obs. (March 11.47p2)
CK09Y010 C/2009 Y1 (Catalina) from LINEAR (Feb. 26.32-37p5), Chante-Perdrix Obs. (March 6.85-86p3), and Petit Jean Mtn. South Obs. (PJMSO) (March 8.39-40p6 & 10.34-35p6)
CK09U050 C/2009 U5 (Grauer) from Cielo Profundo Obs. (March 8.91-93p3) and Maidbronn Obs. (March 11.95-02p4)
CK09U030 C/2009 U3 (Hill) from Maidbronn Obs. (March 7.78-79p4), Rodeno Obs. (March 8.80p3), Kurihara Obs. (March 11.45p2), Moriyama Obs. (March 11.47p2), and Chante-Perdrix Obs. (March 11.80-81p2)
PK09T020 P/2009 T2 (La Sagra) from PJMSO (March 7.07-08p6) and Buchloe Obs. (March 7.81-82p3)
PK09Q040 P/2009 Q4 (Boattini) from Schiaparelli Obs. (March 5.06p1 & 5.13p1), Maidbronn Obs. (March 7.06p3), the Spaceguard Centre (March 7.98p1), PJMSO (March 8.38-39p6), Sendai Obs. (March 8.60p2), Maisoncelles Obs. (March 9.96-97p3), Cielo Profundo Obs. (March 9.00-01p2), Atlante Obs. (March 10.00-01p3), and Moriyama Obs. (March 11.64-65p2)
CK09O020 C/2009 O2 (Catalina) from Schiaparelli Obs. (March 5.18-19p2), Crni Vrh Obs. (March 8.16p3), Kurihara Obs. (March 11.81p2), and RAS Mayhill (March 12.50p3)
CK09K050 C/2009 K5 (McNaught) from Schiaparelli Obs. (March 5.18-19p2), Kurihara Obs. (March 8.80p3 & 11.79-80p4), Maisoncelles Obs. (March 12.16-19p10), and RAS Mayhill (March 12.47p3)
CK09F060 C/2009 F6 (Yi-SWAN) from Auckland Obs. (Feb. 20.41p1) and WISE (March 1.24p1, 1.51p1, 1.57p1, 1.64p1, 1.70p1, 1.77p1, 2.04p1, 2.23p1, 2.37p1, 2.56p1, 2.63p1, 2.70p1, 2.76p1 & 3.03p1)
CK09F020 C/2009 F2 (McNaught) from LINEAR (Feb. 24.47-52p5) and Maisoncelles Obs. (March 12.10-11p2)
CK08S030 C/2008 S3 (Boattini) from Schiaparelli Obs. (Feb. 7.84p1 & 7.90p1) and PJMSO (March 7.05p2)
CK08Q030 C/2008 Q3 (Garradd) from Schiaparelli Obs. (March 5.13-14p2), PJMSO (March 8.40p6 & 10.35-36p6), Sendai Obs. (March 8.64p2 & 11.70p2), and RAS Mayhill (March 9.44-45p3)
CK08P010 C/2008 P1 (Garradd) from Maidbronn Obs. (March 4.77p3 & 7.76-77p3) and Buchloe Obs. (March 7.78p2)
CK08N010 C/2008 N1 (Holmes) from CAST Obs. (March 5.97p1), PJMSO (March 6.44-45p6, 8.45-46p6 & 10.44-45p6), RAS Mayhill (March 9.42-43p3), Cielo Profundo Obs. (March 10.13-15p3), and Maisoncelles Obs. (March 12.01-02p4)
CK08F75K C/2008 FK75 (Lemmon-Siding Spring) from Nazaret Obs. (March 7.22-24p8), Sendai Obs. (March 8.80-81p3 & 11.79p2), RAS Mayhill (March 9.41p2), and Cielo Profundo Obs. (March 11.19-20p3)
CK07Q030 C/2007 Q3 (Siding Spring) from Chante-Perdrix Obs. (March 6.86-89p3), Mt. Tuffley Obs. (March 6.91-92p3), Kurihara Obs. (March 8.48p3 & 11.52p3), Sendai Obs. (March 8.72p2 & 11.71p2), Cielo Profundo Obs. (March 10.17-20p3 & 11.12-15p3), Gualba Obs. (March 10.19p2), Moriyama Obs. (March 11.66-67p2), and Moletai Obs. (March 12.10-11p3)
CK07N030 C/2007 N3 (Lulin) from Maidbronn Obs. (March 7.82-83p3, 11.77-80p2 & 11.84p1) and Buchloe Obs. (March 7.86p3)
CK07D010 C/2007 D1 (LINEAR) from Schiaparelli Obs. (March 5.10p1 & 5.18p1), PJMSO (March 8.43-44p6), Cielo Profundo Obs. (March 9.08-10p2), and Maisoncelles Obs. (March 12.04-05p4)
CK06O02F C/2006 OF2 (Broughton) from Gualba Obs. (March 6.92p1), CAST Obs. (March 7.83p1), Sendai Obs. (March 8.58-60p3 & 11.58-59p3), Moriyama Obs. (March 11.62-63p2), and Maisoncelles Obs. (March 11.91-92p3)
CK05L030 C/2005 L3 (McNaught) from Vicksburg Obs. (March 4.30-32p4 & 6.32-34p3), Schiaparelli Obs. (March 5.11p1 & 5.16p1), PJMSO (March 8.40-41p6), Sendai Obs. (March 8.66p2 & 11.71p2), and Cielo Profundo Obs. (March 9.03-06p3)
0230P 230P/LINEAR from Maidbronn Obs. (March 7.07-09p3) and Cielo Profundo Obs. (March 10.99-02p3)
0217P 217P/LINEAR from Maidbronn Obs. (March 7.86p3) and Moriyama Obs. (March 11.52-53p2)
0203P 203P/Korlevic from Rodeno Obs. (March 8.84-85p3), La Vara Obs. (March 9.88-89p3), and Sendai Obs. (March 11.49p2)
0169P 169P/NEAT from Vicksburg Obs. (March 5.11-13p3 & 6.21-22p3), Atlante Obs. (March 6.90-93p3 & 7.91-92p3), Altamira Obs. (March 6.92-93p3), CAST Obs. (March 7.80p1), Buchloe Obs. (March 7.86p3), Maisoncelles Obs. (March 9.91-92p4), Blanquita Obs. (March 10.91-92p3), Moriyama Obs. (March 11.57p2), and Tzec Maun Obs. Mayhill (March 12.28-29p2)
0157P 157P/Tritton from Waterlooville Obs. (March 6.81-83p4), Maidbronn Obs. (March 6.82-83p4 & 7.81p3), Altamira Obs. (March 6.88-89p3), PJMSO (March 7.06p6), Buchloe Obs. (March 7.83-84p3), Rodeno Obs. (March 8.83-84p3), LINEAR (March 9.11-15p5), La Vara Obs. (March 9.87p3), RAS Mayhill (March 10.15p2), Moriyama Obs. (March 11.45p2), Sendai Obs. (March 11.47p2), and Kurihara Obs. (March 11.48p1)
0149P 149P/Mueller 4 from Ageo Obs. (Feb. 19.72-73p2), Libbiano Obs. (March 6.98-00p2), RAS Mayhill (March 9.34-35p3), and Maisoncelles Obs. (March 11.99-00p4)
0118P 118P/Shoemaker-Levy 4 from Stixendorf Obs. (March 5.90-91p2), Vicksburg Obs. (March 6.08-10p3), Montcabre Obs. (March 6.77p3), Carmelita Obs. (March 6.80-81p3), Cyclops Obs. (March 6.88-89p4), Altamira Obs. (March 6.91-92p3), Atlante Obs. (March 7.87-89p3), Sendai Obs. (March 8.49p1 & 11.50p2), Ottmarsheim Obs. (March 8.82-83p3), Rodeno Obs. (March 8.87-89p3), La Vara Obs. (March 9.90-91p3), Blanquita Obs. (March 10.88-89p3), and Moriyama Obs. (March 11.54-55p2)
0094P 94P/Russell 4 from Brixiis Obs. (March 2.81-83p8), Hobbs Obs. (March 4.06-09p3), Vicksburg Obs. (March 4.28-29p4 & 5.18-21p3), Schiaparelli Obs. (March 5.06p1 & 5.14p1), Remanzacco Obs. (March 5.90p2), Stixendorf Obs. (March 5.95-96p3), Mt. Tuffley Obs. (March 7.01-02p3), Altamira Obs. (March 7.04-06p3), Maidbronn Obs. (March 7.04-05p3), CAST Obs. (March 7.82p1), PJMSO (March 8.37-38p6), Kurihara Obs. (March 8.45p2 & 11.42p3), Sendai Obs. (March 8.59p3 & 11.59p2), Borken Obs. (March 9.81-83p6), Berta Obs. (March 10.80-84p3), Santa Maria de Montmagastrell Obs. (March 10.88-89p3), Blanquita Obs. (March 10.96-98p3), and Sierra Stars Obs. (March 11.25-33p5)
0081P 81P/Wild 2 from Vicksburg Obs. (March 6.40-43p3 & 7.42-46p3), Altamira Obs. (March 7.07-08p3), Borken Obs. (March 7.10-11p9), Maidbronn Obs. (March 7.12-13p3, 9.12-15p3 & 12.11-13p3), Nazaret Obs. (March 7.18-22p5), Sendai Obs. (March 8.70p2 & 11.69-70p2), Tzec Maun Obs. Moorook (March 9.68p1, 9.74-75p2, 10.58-60p2 & 10.66-67p5), Jaen Obs. (March 9.97-98p3), Gualba Obs. (March 10.18p2), PJMSO (March 10.43-44p6), Moletai Obs. (March 11.07-10p3), Moriyama Obs. (March 11.68-69p2), and Maisoncelles Obs. (March 12.08-09p4)
0074P 74P/Smirnova-Chernykh from Vicksburg Obs. (March 6.45-48p3), Maidbronn Obs. (March 7.14-17p4), Sendai Obs. (March 8.70-71p2 & 11.68p2), Cielo Profundo Obs. (March 9.12-14p3), PJMSO (March 10.40-42p6), Tzec Maun Obs. Moorook (March 10.57-60p2), and Maisoncelles Obs. (March 12.06-08p4)
0067P 67P/Churyumov-Gerasimenko from Grove Creek Obs. (March 8.67-68p2) and RAS Moorook (March 10.69p1)
0031P 31P/Schwassmann-Wachmann 2 from WISE (March 6.81p1, 7.21p1, 7.34p1, 7.54p1, 7.67p1, 7.80p1 & 7.94p1), Montcabre Obs. (March 6.83-85p3), and PJMSO (March 7.09-10p6)
0030P 30P/Reinmuth 1 from Vicksburg Obs. (March 5.10-11p2 & 6.04-05p3), Stixendorf Obs. (March 5.88p2), Carmelita Obs. (March 6.77-78p3), Montcabre Obs. (March 6.78-79p3), Altamira Obs. (March 6.89-90p3), PJMSO (March 7.08-09p6), Maidbronn Obs. (March 7.84-85p4), Sierra Stars Obs. (March 8.14-19p3 & 8.23p1), Sendai Obs. (March 8.51p2 & 11.48p1), Rodeno Obs. (March 8.86-87p3), Santa Maria de M. Obs. (March 9.79-81p3), La Vara Obs. (March 9.93-94p3), Blanquita Obs. (March 10.84-85p3), Kurihara Obs. (March 11.49p2), and Moriyama Obs. (March 11.51p2)
0029P 29P/Schwassmann-Wachmann 1 from Hobbs Obs. (Feb. 12.09-12p3 & March 4.06-09p3), Vicksburg Obs. (March 4.16-19p2, 5.16-17p2 & 6.11-18p4), Brixiis Obs. (March 4.78-81p6), Stixendorf Obs. (March 5.92p3), Berta Obs. (March 6.80-83p3 & 10.86-89p3), Carmelita Obs. (March 6.82-83p3), Montcabre Obs. (March 6.88-89p3 & 10.86-88p3), Nazaret Obs. (March 6.88-91p4 & 9.91-92p4), Gualba Obs. (March 6.90-91p4 & 10.81p2), Altamira Obs. (March 6.94-97p3), CAST Obs. (March 7.82p1), Borken Obs. (March 7.93-95p6 & 9.78-80p7), Kurihara Obs. (March 8.41-42p3 & 11.40-41p2), Sendai Obs. (March 8.47p1, 8.52p2 & 11.57p2), Rodeno Obs. (March 8.90-91p3), Cielo Profundo Obs. (March 8.95-97p3), Maidbronn Obs. (March 9.01p3), Tzec Maun Obs. Moorook (March 9.50p2 & 11.51-53p3), Hradec Kralove Obs. (March 9.87-88p5), Maisoncelles Obs. (March 9.92-93p3 & 11.88-90p3), La Vara Obs. (March 9.95p3), Santa Maria de M. Obs. (March 10.87p3), Blanquita Obs. (March 10.93-95p3), Atlante Obs. (March 10.94-98p3), and Moriyama Obs. (March 11.58-59p2)

MPEC 2010-E56 - "15:59 UT" - Comet P/2010 D2 (WISE)

PK10D020 P/2010 D2 (WISE) (i=57.2°, q=3.657 AU, Q=9.562 AU, TP=2010 Feb. 27.010 TT) from Mauna Kea (March 5.24-25p2) and RAS Mayhill (March 10.17p3 & 12.12p2)

MPEC 2010-E55 - "15:51 UT" - Comet C/2010 B1 (Cardinal)

CK10B010 C/2010 B1 (Cardinal) (i=102.0°, q=2.942 AU, TP=2011 Feb. 6.8926 TT) from Remanzacco Obs. (Feb. 7.97p2), Chante-Perdrix Obs. (March 6.82p1), Maidbronn Obs. (March 6.86-89p5 & 8.78-79p3), PJMSO (March 7.10-12p6 & 10.14-16p8), Buchloe Obs. (March 7.80-81p3), Cyclops Obs. (March 7.84-85p3), Atlante Obs. (March 7.85-86p2), Sendai Obs. (March 8.63p2), Modra Obs. (March 8.78-79p10 & 10.76-77p6), and Moriyama Obs. (March 11.48-49p2)

MPEC 2010-E54 - "13:36 UT" - 2010 EG21

K10E21G 2010 EG21 (small asteroid, H=24.4 ~45m) was discovered at 1100 UT on 9 March by LINEAR, which observed it at March 9.46-49p4. The discovery was confirmed by the Catalina Sky Survey (CSS) (March 12.50-52p8).

MPEC 2010-E53 - "12:57 UT" - 2010 EF21

K10E21F 2010 EF21 (Q=4.079 AU, H=18.4 ~708m) was discovered at 1538 UT on 10 March by SSS, which observed it at March 10.65-68p7, 10.78p1, and 11.68-69p5. The discovery was confirmed by Tzec Maun Obs. Moorook (March 11.72-75p3) and Mt. John Obs. (March 12.42p4).

<< DOU on 12 Mar. '10 >> MPEC 2010-E52 - "07:07 UT" - Daily Orbit Update

Observations of small asteroids (H>22.0)
K10E11X 2010 EX11 (arc=8 days, H=24.0 ~54m) from Tenagra II Obs. (March 11.33-34p3)
Observations of almost-small asteroids (21.7<H<=22.0)
K10D01F 2010 DF1 (arc=22 days, H=21.9 ~141m) from Tenagra II Obs. (March 11.19p3), Chabot Obs. (March 11.20-21p3), and Mark Trueblood via Kitt Peak Natl. Obs. (KPNO) (March 11.32p4)
Observations of other objects
K10CI0V 2010 CV180 (Q=4.906 AU, arc=24 days, H=18.5 ~676m) from Tzec Maun Obs. Mayhill (March 9.32-37p3)
K10CI0C 2010 CC180 (arc=28 days, H=18.5 ~676m) from LINEAR (March 9.39-44p5) and Starkenburg Obs. (March 11.88-89p3)
K09C03B 2009 CB3 (q=0.294 AU, arc=2 opp, H=19.4 ~446m) from LINEAR (March 9.11-16p5)
K08F06N 2008 FN6 (arc=2 opp, H=21.2 ~195m) from LINEAR (2008 April 12.29-34p4)
K08E00E 2008 EE (arc=3 opp, H=19.8 ~371m) from Ovidiu Vaduvescu via La Palma (March 3.19p7) and La Sagra Obs. (March 9.81-83p3)
K07E00F 2007 EF (arc=2 opp, H=21.4 ~178m) from Vaduvescu/La Palma (March 3.13p8)
K04R11A 2004 RA11 (i=39.4°, arc=3 opp, H=18.8 ~589m) from Starkenburg Obs. (March 11.85-86p2)
K04R00K 2004 RK (arc=4 opp, H=19.4 ~446m) from La Sagra Obs. (March 11.17-20p3)
K02C26F 2002 CF26 (arc=6 opp, H=17.2 ~1.23 km) from Madonna di Dossobuono Obs. (March 11.87p3)
K01F57Z 2001 FZ57 (q=0.374 AU, arc=6 opp, H=18.7 ~616m) from Starkenburg Obs. (March 11.87p2)
J96B01A 1996 BA1 (arc=2 opp, H=20.7 ~245m) from La Sagra Obs. (March 9.94-96p3)
M1980 221980 1996 EO from LINEAR (March 9.45-50p4) and La Sagra Obs. (March 11.07-10p3)
L4088 214088 2004 JN13 from LINEAR (March 9.11-16p5)
G3243 163243 2002 FB3 from WISE (March 7.00p1, 7.20p1, 7.33p1, 7.60p1 & 7.66p1) and Blanquita Obs. (March 10.81-82p3)
G2998 162998 2001 SK162 from Spaceguard Centre (March 11.81p1)
G2882 162882 2001 FD58 from LINEAR (March 9.22-27p4)
F2941 152941 2000 FM10 from WISE (March 5.69p1, 5.76p1, 5.89p1, 6.15p1, 6.22p1, 6.28p1, 6.48p1, 6.55p1, 6.62p1, 6.68p1, 6.75p1, 6.81p1, 6.95p1, 7.01p1, 7.14p1, 7.21p2, 7.61p1, 7.67p2, 7.74p1, 8.07p1 & 8.27p1)
40263 40263 1999 FQ5 from La Sagra Obs. (March 10.95-97p3)
27346 27346 2000 DN8 from LINEAR (March 9.22-27p5)
20790 20790 2000 SE45 from LINEAR (March 9.13-15p3)
16064 16064 1999 RH27 from La Sagra Obs. (March 11.01-04p3)
05626 5626 1991 FE from LINEAR (March 9.11-16p5)
01627 1627 Ivar (1929 SH) from Tzec Maun Obs. Moorook (March 11.55-58p3)
01036 1036 Ganymed (1924 TD) from Tzec Maun Obs. Moorook (March 11.56-58p3)
00887 887 Alinda (1918 DB) from WISE (March 5.59p1, 5.72p1, 5.78p1, 6.18p1 & 6.45p1)

Observers on 12 March '10

A total of 65 observing facilities appear in today's MPECs.

Code	Observer / observatory
`349`	Ageo Obs. in Japan, 1 in MPEC 2010-E57 -- 149P
`J24`	Altamira Obs. in Spain, 8 in MPEC 2010-E57 -- P/2010 A3, 169P, 157P, 118P, 94P, 81P, 30P, 29P
`H21`	Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2010-E59 -- C/2010 E1
`J51`	Atlante Obs. in the Canary Islands, 5 in MPECs 2010-E55 & 2010-E57 -- C/2010 B1, P/2009 Q4, 169P, 118P, 29P
`467`	Auckland Obs. in New Zealand, 1 in MPEC 2010-E57 -- C/2009 F6
`C12`	Berta Obs. in Spain, 2 in MPEC 2010-E57 -- 94P, 29P
`I99`	Blanquita Obs. in Spain, 6 in MPECs 2010-E52 & 2010-E57 -- 163243, 169P, 118P, 94P, 30P, 29P
`B59`	Borken Obs. in Germany, 3 in MPEC 2010-E57 -- 94P, 81P, 29P
`B96`	Brixiis Obs. in Belgium, 2 in MPEC 2010-E57 -- 94P, 29P
`215`	Buchloe Obs. in Germany, 7 in MPECs 2010-E55 & 2010-E57 -- C/2010 B1, P/2010 A3, P/2009 T2, C/2008 P1, C/2007 N3, 169P, 157P
`235`	CAST Obs. in Italy, 6 in MPEC 2010-E57 -- P/2010 A3, C/2008 N1, C/2006 OF2, 169P, 94P, 29P
`B20`	Carmelita Obs. in Spain, 3 in MPEC 2010-E57 -- 118P, 30P, 29P
`703`	Catalina Sky Survey in Arizona, 1 in MPEC 2010-E54 -- 2010 EG21
`G58`	Chabot Obs. in northern California, 1 in MPEC 2010-E52 -- 2010 DF1
`A77`	Chante-Perdrix Obs. in France, 4 in MPECs 2010-E55 & 2010-E57 -- C/2010 B1, C/2009 Y1, C/2009 U3, C/2007 Q3
`J01`	Cielo Profundo Obs. in Spain, 10 in MPEC 2010-E57 -- C/2009 U5, P/2009 Q4, C/2008 N1, C/2008 FK75, C/2007 Q3, C/2007 D1, C/2005 L3, 230P, 74P, 29P
`106`	Crni Vrh Obs. in Slovenia, 1 in MPEC 2010-E57 -- C/2009 O2
`B84`	Cyclops Obs. in The Netherlands, 2 in MPECs 2010-E55 & 2010-E57 -- C/2010 B1, 118P
`E16`	Grove Creek Obs. in New South Wales, 1 in MPEC 2010-E57 -- 67P
`442`	Gualba Obs. in Spain, 4 in MPEC 2010-E57 -- C/2007 Q3, C/2006 OF2, 81P, 29P
`750`	Hobbs Obs. in Wisconsin, 2 in MPEC 2010-E57 -- 94P, 29P
`048`	Hradec Kralove Obs. in the Czech Republic, 1 in MPEC 2010-E57 -- 29P
`J28`	Jaen Obs. in Spain, 1 in MPEC 2010-E57 -- 81P
`415`	Kambah Obs. in the Australian Capital Territory, 1 in MPEC 2010-E57 -- C/2010 A4
`695]`	Mark Trueblood via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2010-E52 -- 2010 DF1
`D95`	Kurihara Obs. in Japan, 9 in MPEC 2010-E57 -- P/2010 A3, C/2009 U3, C/2009 O2, C/2009 K5, C/2007 Q3, 157P, 94P, 30P, 29P
`704`	LINEAR in New Mexico, 13 in MPECs 2010-E52, 2010-E54 & 2010-E57 -- 2010 EG21, 2010 CC180, C/2009 Y1, C/2009 F2, 2009 CB3, 2008 FN6, 27346, 221980, 214088, 20790, 162882, 5626, 157P
`699`	LONEOS in Arizona, 1 in MPEC 2010-E60 -- 2010 EK12
`950.`	Ovidiu Vaduvescu via La Palma in the Canary Islands, 2 in MPEC 2010-E52 -- 2008 EE, 2007 EF
`J75`	La Sagra Obs. in Spain, 6 in MPEC 2010-E52 -- 2008 EE, 2004 RK, 1996 BA1, 40263, 221980, 16064
`J38`	La Vara Obs. in Spain, 5 in MPEC 2010-E57 -- 203P, 157P, 118P, 30P, 29P
`B33`	Libbiano Obs. in Italy, 1 in MPEC 2010-E57 -- 149P
`560`	Madonna di Dossobuono Obs. in Italy, 1 in MPEC 2010-E52 -- 2002 CF26
`B82`	Maidbronn Obs. in Germany, 16 in MPECs 2010-E55 & 2010-E57 -- P/2010 C1, C/2010 B1, P/2010 A3, C/2009 U5, C/2009 U3, P/2009 Q4, C/2008 P1, C/2007 N3, 230P, 217P, 157P, 94P, 81P, 74P, 30P, 29P
`C10`	Maisoncelles Obs. in France, 11 in MPEC 2010-E57 -- P/2009 Q4, C/2009 K5, C/2009 F2, C/2008 N1, C/2007 D1, C/2006 OF2, 169P, 149P, 81P, 74P, 29P
`568`	Mauna Kea in Hawaii, 1 in MPEC 2010-E56 -- P/2010 D2
`118`	Modra Obs. in Slovakia, 2 in MPECs 2010-E55 & 2010-E57 -- C/2010 B1, P/2010 A3
`152`	Moletai Obs. in Lithuania, 2 in MPEC 2010-E57 -- C/2007 Q3, 81P
`213`	Montcabre Obs. in Spain, 5 in MPEC 2010-E57 -- C/2010 A4, 118P, 31P, 30P, 29P
`900`	Moriyama Obs. in Japan, 12 in MPECs 2010-E55 & 2010-E57 -- C/2010 B1, C/2009 U3, P/2009 Q4, C/2007 Q3, C/2006 OF2, 217P, 169P, 157P, 118P, 81P, 30P, 29P
`474`	Mt. John Obs. in New Zealand, 2 in MPECs 2010-E53 & 2010-E59 -- 2010 EF21, C/2010 E1
`J93`	Mt. Tuffley Obs. in England, 2 in MPEC 2010-E57 -- C/2007 Q3, 94P
`J47`	Nazaret Obs. in Spain, 3 in MPEC 2010-E57 -- C/2008 FK75, 81P, 29P
`423`	North Ryde Obs. in New South Wales, 1 in MPEC 2010-E57 -- C/2010 A4
`224`	Ottmarsheim Obs. in France, 1 in MPEC 2010-E57 -- 118P
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 15 in MPECs 2010-E55 & 2010-E57 -- C/2010 B1, C/2009 Y1, P/2009 T2, P/2009 Q4, C/2008 S3, C/2008 Q3, C/2008 N1, C/2007 D1, C/2005 L3, 157P, 94P, 81P, 74P, 31P, 30P
`H06`	RAS Obs. Mayhill in New Mexico, 10 in MPECs 2010-E56, 2010-E57 & 2010-E59 -- C/2010 E1, P/2010 D2, P/2010 A3, C/2009 O2, C/2009 K5, C/2008 Q3, C/2008 N1, C/2008 FK75, 157P, 149P
`D90`	RAS Obs. Moorook in South Australia, 2 in MPECs 2010-E57 & 2010-E59 -- C/2010 E1, 67P
`473`	Remanzacco Obs. in Italy, 2 in MPECs 2010-E55 & 2010-E57 -- C/2010 B1, 94P
`939`	Rodeno Obs. in Spain, 7 in MPEC 2010-E57 -- P/2010 A3, C/2009 U3, 203P, 157P, 118P, 30P, 29P
`B74`	Santa Maria de Montmagastrell Obs. in Spain, 3 in MPEC 2010-E57 -- 94P, 30P, 29P
`204`	Schiaparelli Obs. in Italy, 9 in MPEC 2010-E57 -- P/2010 C1, P/2009 Q4, C/2009 O2, C/2009 K5, C/2008 S3, C/2008 Q3, C/2007 D1, C/2005 L3, 94P
`D93`	Sendai Obs. in Japan, 16 in MPECs 2010-E55 & 2010-E57 -- C/2010 B1, P/2010 A3, P/2009 Q4, C/2008 Q3, C/2008 FK75, C/2007 Q3, C/2006 OF2, C/2005 L3, 203P, 157P, 118P, 94P, 81P, 74P, 30P, 29P
`E12`	Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2010-E53 & 2010-E59 -- 2010 EF21, C/2010 E1
`G68`	Sierra Stars Obs. in northern California, 2 in MPEC 2010-E57 -- 94P, 30P
`645`	Sloan Digital Sky Survey in New Mexico, 1 in MPEC 2010-E60 -- 2010 EK12
`J26`	Spaceguard Centre in Wales, 2 in MPECs 2010-E52 & 2010-E57 -- P/2009 Q4, 162998
`611`	Starkenburg Obs. in Germany, 3 in MPEC 2010-E52 -- 2010 CC180, 2004 RA11, 2001 FZ57
`A71`	Stixendorf Obs. in Austria, 4 in MPEC 2010-E57 -- 118P, 94P, 30P, 29P
`926`	Tenagra II Obs. in Arizona, 4 in MPECs 2010-E52, 2010-E58 & 2010-E59 -- 2010 EX11, C/2010 E1, 2010 DF1, 2005 SC71
`H10`	Tzec Maun Obs. Mayhill in New Mexico, 3 in MPECs 2010-E52, 2010-E57 & 2010-E59 -- C/2010 E1, 2010 CV180, 169P
`D96`	Tzec Maun Obs. Moorook in South Australia, 7 in MPECs 2010-E52, 2010-E53, 2010-E57 & 2010-E59 -- 2010 EF21, C/2010 E1, 1627, 1036, 81P, 74P, 29P
`H47`	Vicksburg Obs. in Mississippi, 8 in MPEC 2010-E57 -- C/2005 L3, 169P, 118P, 94P, 81P, 74P, 30P, 29P
`C51`	WISE in Earth polar orbit, 5 in MPECs 2010-E52 & 2010-E57 -- C/2009 F6, 163243, 152941, 887, 31P
`940`	Waterlooville Obs. in England, 1 in MPEC 2010-E57 -- 157P

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

Impact Risk Monitoring on 12 March '10

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2300 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

2008 EM68	JPL Sentry	0513	2010-2108	1172	1.6e-05	-5.46	-6.08	0	JPL: "Analysis based on 12 observations spanning .11019 days (2008-Mar-08.25164 to 2008-Mar-08.36183)." Diameter approximately 0.010 km. from mean, weighted H=27.7.

2005 YU55	NEODyS	1533	2043-2109	93	2.88e-04	-2.30	-2.56	1	NEODyS: "Based on 51 optical observations (of which 1 are rejected as outliers) from 2005/12/24.299 to 2010/03/06.343. NOTE: The Virtual Impactor in 2103/11/10.491 ... are rated as Torino Scale 1."
2005 YU55	JPL Sentry	0513	2043-2109	61	8.1e-04	-1.83	-2.00	1	JPL: "Analysis based on 51 observations spanning 1533.0 days (2005-Dec-24.29832 to 2010-Mar-06.342175)." Diameter approximately 0.140 km. from mean, weighted H=21.9.

153814 2001 WN5	NEODyS	1533	2106-2133	6	3.01e-05	-1.72	-1.73	-	NEODyS: "Based on 128 optical observations (of which 7 are rejected as outliers) from 1996/02/10.397 to 2010/03/06.400."
153814 2001 WN5	JPL Sentry	0513	2133	1	1.3e-05	-2.07	-2.07	-	JPL: "Analysis based on 124 observations spanning 5138.0 days (1996-Feb-10.39593 to 2010-Mar-06.399287)." Diameter approximately 0.770 km. from mean, weighted H=18.2.

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 12 March '10

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

2200	Grabbed MPEC 2010-E60 - 2010 EK12 - see above
2103	Grabbed MPEC 2010-E59 - Comet C/2010 E1 (Garradd) - see above
1710	Grabbed MPEC 2010-E56 - Comet P/2010 D2 (WISE) - see above Grabbed MPEC 2010-E57 - Observations of Comets - see above Grabbed MPEC 2010-E58 - 2005 SC71 - see above
1610	Grabbed MPEC 2010-E55 - Comet C/2010 B1 (Cardinal) - see above
1533	Noted that NEODyS has updated its 153814 2001 WN5 risk assessment - see above Noted that NEODyS has updated its 2005 YU55 risk assessment - see above Grabbed MPEC 2010-E52 - Daily Orbit Update - see above Grabbed MPEC 2010-E53 - 2010 EF21 - see above Grabbed MPEC 2010-E54 - 2010 EG21 - see above
0513	Noted that JPL Sentry has updated its 153814 2001 WN5 risk assessment - see above Noted that JPL Sentry has updated its 2005 YU55 risk assessment - see above Noted that JPL Sentry has updated its 2008 EM68 risk assessment - see above

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