2012-03-16 Tracking News

The Mt. Lemmon Survey's 1.5m telescope. Credit Lori Stiles, U.Ariz.

The University of Arizona announced March 6th that "The Catalina Sky Survey, or CSS ... will receive a new NASA grant totaling more than $4.1 million to upgrade and operate its telescopes through 2015." This photo by Lori Stiles/UA shows the CSS Mt. Lemmon 1.5-meter telescope.
An unrelated news release from the European Space Agency yesterday tells about very close passer 2012 DA14 and promotes the agency's planned new Space Situational Awareness (SSA) program, which is "developing a system of automated optical telescopes that can detect asteroids just like this one."

Contents on 16 March '12

Traffic Report -- six objects
Radar Astrometry -- three objects
IAU Minor Planet Center
- NEOCP Activity -- 27 listings
- New MPECs -- fourteen MPECs
Observers -- 85 observers
Impact Risk Monitoring -- six objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page (archive)
Of 453 risk-listed objects, 35 have had news in the last 31 days. Updated at 2210 UTC on 16 March.
Ephemerides for risk-rated & nearby objects + potential mission destinations
News image catalog
News old archive & Small Objects Archive
Object Links - mainly for radar targets & close passers - updated 12 March
Observing Campaigns

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.

Traffic Report on 16 March '12

Six objects reported inside ten LD

Six visitors are reported to be passing inside ten lunar distances (LD) of our planet today. Inside Earth's Hill sphere, 2012 EN5 is moving away from 1.46 to 2.87 LD. Out further, risk-listed radar target 2012 DW60 is outbound from 4.93 to 6.05 LD, 2012 EJ5 from 6.09 to 6.55 LD, radar target 2012 DH54 from 6.86 to 7.81 LD, and newly discovered risk-listed 2012 EP10 departs from inside ten LD*. And 2012 EL8 comes its closest to Earth this time around, reaching 7.3 LD at 0153 UTC with an uncertainty of 25 minutes.

On approach, newly discovered 2012 EO8 arrives inside ten LD on March 18th, risk-listed 2012 EK5 on March 19th, intruder 2012 EG5 (risk-listed radar target) on March 27th, and returning 2007 HV4 on April 14th.

This report was updated at 1835 UTC with three new discoveries (one departing ten LD today and two already departed): 2012 ER10 (MPEC), 2012 EP10 (Moon buzzer, MPEC), and 2012 EN10 (MPEC). Earlier updates reported follow-up in today's DOU MPEC for 2012 EL8, 2012 EN5, 2012 EM5, 2012 EG5, and 2012 DA14, as well as for departed 2012 DN31 and now distant 2012 BV61, and, earlier, the discovery of 2012 EO8 (MPEC). This report was previously updated at 0507 and 1628 UTC.

Notes: Ten times the distance to the Moon (ten LD) has no astronomical significance but is a useful reporting boundary. Earth's Hill sphere (of gravitational influence) is estimated to extend out to around 3.89 LD. Object distances are interpreted by A/CC from JPL Horizons data. "LD*" indicates some passage uncertainty. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.

Radar Astrometry on 16 March '12

Radar observation of three objects

The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:

Data update noted at 1943 UTC when the database was dated 16 March

30825 1990 TG1 from Arecibo (2005 April 18.63 velocity & 18.66 range)

Data update noted at 2108 UTC when the database was dated 16 March

100926 1998 MQ from Arecibo (2010 Oct. 27.29 velocity, 29.29 velocity & 30.29 range)

Data update noted at 2358 UTC when the database was dated 16 March

7889 1994 LX from Arecibo (2005 Jan. 28.77 velocity, 28.78 range, 29.77 velocity & 29.78 range)

NEOCP Activity on 16 March '12

The MPC's NEO Confirmation Page has 27 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 27 objects listed. Of these, nineteen were "one nighters." So far The Tracking News has counted a total of 69 listings on the NEOCP today.

New MPECs on 16 March '12

Minor Planet Electronic Circulars

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

MPEC 2012-F01 time-stamped "01:35 UT" - 2012 EO8 - see below
MPEC 2012-F02 time-stamped "02:18 UT" - Comet C/2012 E2 (SWAN) - see below
MPEC 2012-F03 time-stamped "06:02 UT" - Daily Orbit Update - see below
MPEC 2012-F04 time-stamped "12:45 UT" - 2012 EN10 - see below
MPEC 2012-F05 time-stamped "12:50 UT" - 2012 EO10 - see below
MPEC 2012-F06 time-stamped "12:52 UT" - 2012 EP10 - see below
MPEC 2012-F07 time-stamped "12:54 UT" - 2012 EQ10 - see below
MPEC 2012-F08 time-stamped "12:56 UT" - 2012 ER10 - see below
MPEC 2012-F09 time-stamped "12:59 UT" - 2012 ES10 - see below
MPEC 2012-F10 time-stamped "16:08 UT" - Comet C/2012 E3 (Panstarrs) - see below
MPEC 2012-F11 time-stamped "18:06 UT" - Observations and Orbits of Comets - see below
MPEC 2012-F12 time-stamped "20:09 UT" - 2012 EY11 - see below
MPEC 2012-F13 time-stamped "20:15 UT" - 2012 EZ11 - see below
MPEC 2012-F14 time-stamped "20:17 UT" - 2012 EA12

MPEC 2012-F14 - "20:17 UT" - 2012 EA12

K12E12A 2012 EA12 (small asteroid, H=24.9 ~35m) from the Catalina Sky Survey (CSS) (March 15.23-24p4 & 15.37p4), Magdalena Ridge Obs. (MRO) (March 15.26-28p4 & 16.14-16p4), Astronomical Research Obs. Westfield (March 15.33-34p3), Grasslands Obs. (March 15.34p3), Saint-Barthelemy Obs. (March 15.87-88p3), St. Pardon de Conques Obs. (March 15.88-89p4), New Millennium Obs. (March 15.89-90p3), KLENOT (March 15.91p2), Schiaparelli Obs. (March 15.93-94p2), San Marcello Pistoiese Obs. (March 15.96-97p3), Cordoba Obs. Bosque Alegre Station (March 16.07p4), and Sandlot Obs. (March 16.26-28p5)

MPEC 2012-F13 - "20:15 UT" - 2012 EZ11

K12E11Z 2012 EZ11 (H=21.5 ~170m) from the Mt. Lemmon Survey (MLS) (March 14.42-44p3 & 16.45-47p4) and MRO (March 15.34-36p4 & 16.42-44p4)

MPEC 2012-F12 - "20:09 UT" - 2012 EY11

K12E11Y 2012 EY11 (risk-listed, H=21.5 ~170m) from MLS (March 14.20-21p3 & 16.19-21p4), ARO Westfield (March 14.24-26p3), MRO (March 14.25-27p4 & 15.12-14p4), Great Shefford Obs. (March 14.99-00p3), and the Spacewatch 1.8m telescope (March 15.21p3)

<< OOC on 16 Mar. '12 >> MPEC 2012-F11 - "18:06 UT" - Observations and Orbits of Comets

CK12E010 C/2012 E1 (Hill) from Montcabre Obs. (March 12.12-16p2) and Nerpio Obs. (March 16.10p3)
CK12C17H C/2012 CH17 (MOSS) from Dax Obs. (Feb. 22.05-10p3, 24.12-13p2, 27.02-06p2, 28.03-13p5 & 29.03-07p3), Kurihara Obs. (Feb. 28.47p3), Betelgeuse Station (March 10.04p3), Modra Obs. (March 10.14-15p2), Montcabre Obs. (March 11.93-95p3), Ka-Dar Obs. TAU Station (March 11.93-94p3), Vallauris Obs. (March 12.86-89p3 & 13.85-88p4), and Olmen Obs. (March 15.04-06p3)
CK12C020 C/2012 C2 (Bruenjes) from Dax Obs. (Feb. 21.79-82p3 & 27.79-82p3)
CK12C010 C/2012 C1 (McNaught) from Kevin Hills via RAS Obs. Moorook (March 6.43-45p3), Murrumbateman Obs. (March 9.42-43p2, 11.55-56p2 & 13.45-46p2), and Auger Obs. (March 14.14-16p3)
CK12B98J C/2012 BJ98 from Hidetaka Sato via RAS Obs. Mayhill (March 12.19p2) and Haute Provence Obs. (March 15.86-89p2)
CK12B030 C/2012 B3 (La Sagra) from Dax Obs. (Feb. 22.17-20p3, 23.14-21p4 & 29.13-16p3), Montcabre Obs. (March 11.16-19p3), TAU Sta. (March 13.96-98p3), and Sato/RAS Mayhill (March 16.42p3)
PK12B010 P/2012 B1 (Panstarrs) (q=3.826 AU, Q=9.154 AU, TP=2013 July 23.27620 TT) from Dax Obs. (Feb. 21.95-99p3, 27.91-96p3 & 28.90-94p3), TAU Sta. (March 11.82-83p3), Montcabre Obs. (March 11.88-90p3), La Vara Obs. (March 12.88-89p3), Vinyols Obs. (March 12.99-02p3), and Haute Provence Obs. (March 15.92-95p3)
CK12A020 C/2012 A2 (LINEAR) (i=125.9°, q=3.538 AU, Q=1944.914 AU, TP=2012 Nov. 5.08748 TT) from Dax Obs. (Feb. 21.97-99p2, 22.11-12p2, 22.98-01p3, 23.13-14p2, 26.97-01p3, 27.97-00p3, 28.13-15p2, 28.96-99p3 & 29.06-08p2), Kurihara Obs. (Feb. 28.46p3), LINEAR (March 5.29-34p4), Olmen Obs. (March 6.96-97p3 & 14.93-96p3), Betelgeuse Sta. (March 10.05p3), Modra Obs. (March 10.16p3), TAU Sta. (March 11.96p2), and Vallauris Obs. (March 13.91-94p4)
CK12A010 C/2012 A1 (Panstarrs) (i=120.9°, q=7.599 AU, TP=2013 Dec. 2.77412 TT) from Dax Obs. (Feb. 21.96-99p3), Schiaparelli Obs. (Feb. 21.99-00p3), and TAU Sta. (March 11.80-81p3)
PK11Y020 P/2011 Y2 (Boattini) (q=1.787 AU, Q=10.656 AU, TP=2012 Mar. 21.69115 TT) from MLS (March 16.11-13p4)
PK11W020 P/2011 W2 (Rinner) (q=2.303 AU, Q=5.295 AU, TP=2011 Nov. 6.18559 TT) from Dax Obs. (Feb. 21.88-92p3, 26.86-89p3, 27.85-89p3 & 28.86-87p2), Murrumbateman Obs. (March 9.46-48p2), and Haute Provence Obs. (March 13.87-90p2)
CK11UU5F C/2011 UF305 (LINEAR) (i=94.0°, q=2.138 AU, TP=2012 July 22.16266 TT) from Olmen Obs. (March 8.19-20p3 & 15.15-17p3) and Chante-Perdrix Obs. (March 13.15-18p3)
PK11U020 P/2011 U2 (Bressi) (q=4.838 AU, Q=6.044 AU, TP=2012 May 7.31937 TT) from MLS (March 16.11-13p4)
CK11R010 C/2011 R1 (McNaught) (i=116.2°, q=2.080 AU, TP=2012 Oct. 19.61930 TT) from Auger Obs. (March 13.02p2 & 15.01-02p2)
CK11L040 C/2011 L4 (Panstarrs) (i=84.2°, q=0.302 AU, TP=2013 Mar. 10.16439 TT) from Gisborne Obs. (March 6.53p1 & 6.67-70p2)
CK11J020 C/2011 J2 (LINEAR) (i=122.8°, q=3.443 AU, TP=2013 Dec. 25.25292 TT) from Dax Obs. (Feb. 29.08-11p3), Betelgeuse Sta. (March 10.02p3), TAU Sta. (March 11.90-91p3), Cielo Profundo Obs. (March 11.98-03p3), MLS (March 13.22-24p4), Olmen Obs. (March 15.02-04p3), and Auger Obs. (March 15.16-17p2)
CK11F010 C/2011 F1 (LINEAR) (i=56.6°, q=1.819 AU, TP=2013 Jan. 8.00512 TT) from Dax Obs. (Feb. 22.06-09p3, 22.18-20p2, 23.07-11p4, 23.19-21p2, 27.06-09p3, 28.07-11p4, 29.01-05p4 & 29.13-16p3), Tarbatness Obs. (March 4.88-89p2), Monte Deva Obs. (March 5.97-00p5, 7.01-04p5, 8.94-96p5, 10.93-96p5, 12.02-03p3, 13.96-99p5 & 14.96-99p5), Petit Jean Mtn. South Obs. (PJMSO) (March 6.38-39p6), Olmen Obs. (March 6.97-99p3 & 15.19-21p3), Kiev Comet Station (March 7.11-12p13), Montcabre Obs. (March 8.87-88p3 & 12.03-06p3), La Vara Obs. (March 8.96-97p3 & 13.94p3), Rodeno Obs. (March 10.01-03p3), Betelgeuse Sta. (March 10.07p3), Galati Obs. (March 10.08-11p6), Carmelita Obs. (March 10.99-00p3), Sant Pere Obs. (March 11.22-23p3), Carpe-Noctem Obs. (March 13.06p1, 13.13p1 & 13.20p1), Vallauris Obs. (March 15.12-15p5), and Starry Wanderer Obs. (March 15.93-94p3)
PK11C020 P/2011 C2 (Gibbs) (Centaur, q=5.389 AU, Q=9.348 AU, TP=2012 Jan. 7.51012 TT) from the Spacewatch 0.9m telescope (March 12.20-24p3 & 16.23-26p3)
PK10U55H P/2010 UH55 (Spacewatch) (q=2.768 AU, Q=10.262 AU, TP=2011 May 10.36230 TT) from Murrumbateman Obs. (March 13.53p2)
CK10S010 C/2010 S1 (LINEAR) (i=125.3°, q=5.900 AU, TP=2013 May 20.32268 TT) from Dax Obs. (Feb. 21.81-84p3, 22.82-84p3, 27.82-84p3 & 28.82-85p3) and Olmen Obs. (March 8.18-19p3)
CK10R010 C/2010 R1 (LINEAR) (i=156.9°, q=5.621 AU, TP=2012 May 18.89346 TT) from Dax Obs. (Feb. 22.16-19p3, 28.13-17p3 & 29.12-16p3), Vicksburg Obs. (March 6.45-48p3), Kiev Comet Sta. (March 7.13-14p7), Betelgeuse Sta. (March 10.09-10p3), TAU Sta. (March 12.03-04p3), Vallauris Obs. (March 15.09-11p2), and CSS (March 16.49-51p4)
PK10J81C P/2010 JC81 (WISE) (i=38.7°, q=1.811 AU, Q=14.471 AU, TP=2011 Apr. 26.56196 TT) from Dax Obs. (Feb. 22.93-96p3, 26.92-95p3, 27.92-95p3, 28.91-94p3 & 29.10-12p2), Modra Obs. (March 10.13-14p2), Pan-STARRS 1 (PS1) (March 11.47-48p6, 12.42-46p5, 13.43-44p6 & 14.43-46p12), TAU Sta. (March 11.88-89p3 & 13.90-91p3), Cielo Profundo Obs. (March 13.82-86p3), Haute Provence Obs. (March 14.84-87p3), and Olmen Obs. (March 15.90-93p3)
CK10G020 C/2010 G2 (Hill) (i=103.7°, q=1.981 AU, Q=190.505 AU, TP=2011 Sept. 2.05234 TT) from Geisei Obs. (2011 Dec. 19.72p2, 2011 Dec. 27.69-70p3, Jan. 13.39-40p2, 17.49p2, 23.48p2 & Feb. 20.41-45p2), Dax Obs. (Feb. 21.85-88p3, 23.81-84p5, 26.85-86p2, 27.83-86p3, 28.84-86p3, 29.79-81p2, March 5.80-83p3 & 6.79-82p3), Kurihara Obs. (Feb. 28.43p2), Hills/RAS Moorook (March 5.45p3 & 12.44p2), and Auger Obs. (March 13.03-04p2)
CK10F87B C/2010 FB87 (WISE-Garradd) (i=107.6°, q=2.843 AU, Q=603.590 AU, TP=2010 Nov. 7.38567 TT) from Dax Obs. (Feb. 21.90-94p3, 22.88-91p3, 26.87-91p3, 27.88-90p2, 28.88-91p3 & March 6.88-90p2) and TAU Sta. (March 13.80p3)
CK09P010 C/2009 P1 (Garradd) (i=106.2°, q=1.551 AU, TP=2011 Dec. 23.67753 TT) from Dax Obs. (Feb. 22.02-05p5, 22.14-16p4, 23.03-06p5, 23.16-18p4, 24.11-13p3, 27.02-05p4, 27.11-14p4, 28.02-06p6, 28.16-18p3, 29.19-22p5, March 1.94-13p36, 3.95-11p36, 6.02-08p9, 6.88-15p53, 8.87-13p51, 9.87-12p50, 10.86-10p51, 11.96-06p23, 12.82-08p53, 13.80-06p50, 14.81-95p30 & 15.80-84p9), Astreo Obs. (Feb. 27.88-90p2 & March 6.90-93p2), Xingming Obs. (March 2.70-73p6 & 14.73-81p18), Tarbatness Obs. (March 4.92p4), Tzec Maun Obs. Mayhill (March 5.47-48p3), Monte Deva Obs. (March 5.95-96p5, 6.95-99p5, 8.89-90p5, 10.05-06p5, 10.90-92p5, 11.96-99p5, 13.94-95p5 & 14.94-96p5), PJMSO (March 6.37-38p6 & 13.40-41p6), Olmen Obs. (March 6.91-95p3, 8.15-18p3, 14.90-92p3 & 15.93-96p3), Montcabre Obs. (March 8.90p2), La Vara Obs. (March 8.94p3, 11.03-04p3 & 13.93p3), Rodeno Obs. (March 9.92p3), Galati Obs. (March 10.02-04p30), Carmelita Obs. (March 10.94-95p3 & 11.92-93p3), Manises Obs. (March 11.83p3), Montevenere Obs. (March 11.88-90p4), San Marcello Pistoiese Obs. (March 12.09p2), Chante-Perdrix Obs. (March 12.17-18p3), Vallauris Obs. (March 12.95-98p10), Carpe-Noctem Obs. (March 12.96-00p2, 13.05p1 & 14.85-86p3), La Axarquia Obs. (March 13.96p3), Cielo Profundo Obs. (March 13.97-99p3), Siegen Obs. (March 14.82-86p4 & 15.85-88p4), Atlante Obs. (March 14.95-96p3), and Ernesto Guido via RAS Obs. Mayhill (March 15.47-48p2)
CK09F040 C/2009 F4 (McNaught) (i=79.3°, q=5.455 AU, TP=2011 Dec. 31.90340 TT) from Gisborne Obs. (March 6.54-58p3) and Auger Obs. (March 13.05p2, 14.12-13p3 & 15.04p3)
CK06S030 C/2006 S3 (LONEOS) (i=166.0°, q=5.131 AU, TP=2012 Apr. 16.34677 TT) from Dax Obs. (Feb. 28.20-22p3 & 29.19-22p2), Gisborne Obs. (March 6.56p1 & 6.67-70p2), Sant Pere Obs. (March 7.22-23p3), and Olmen Obs. (March 8.20-21p3)
CK05L030 C/2005 L3 (McNaught) (i=139.4°, q=5.593 AU, Q=124983.667 AU, TP=2008 Jan. 16.00595 TT) from TAU Sta. (March 11.85-86p2)
0246P 246P/NEAT from Dax Obs. (Feb. 22.07-10p3, 23.02-05p3, 26.98-01p3, 27.99-04p4, 28.99-01p3, March 2.02-05p3 & 4.08-11p3), Tarbatness Obs. (March 4.93-94p2), Vicksburg Obs. (March 6.42-44p3), Olmen Obs. (March 6.99-00p3 & 15.12-14p3), Kiev Comet Sta. (March 7.08-10p12), Rodeno Obs. (March 9.96-97p3), Hills/RAS Moorook (March 11.63-64p3), Maisoncelles Obs. (March 13.03-04p3 & 16.06-08p3), Vallauris Obs. (March 13.95-97p4), Auger Obs. (March 14.18-19p5 & 15.13-14p2), and El Maestrat Obs. (March 16.03-06p8)
0244P 244P/Scotti from Dax Obs. (Feb. 21.86-89p3, 22.86-90p3, 26.88-90p3, 27.86-90p3 & 28.86-89p2), Hills/RAS Moorook (March 5.43-44p3 & 12.42-43p3), La Vara Obs. (March 8.85-87p3 & 12.85-87p3), Sant Marti Sesgueioles Obs. (March 12.80-83p3), and Castelmartini Obs. (March 12.87p2 & 13.85p3)
0242P 242P/Spahr from Hills/RAS Moorook (March 5.46-48p3)
0240P 240P/NEAT from TAU Sta. (March 11.99p3) and PS1 (March 14.59-61p2)
0228P 228P/LINEAR from Naef Obs. (March 13.94-96p2)
0171P 171P/Spahr (q=1.765 AU, Q=5.340 AU, TP=2012 Apr. 30.52923 TT) from Sato/RAS Mayhill (March 13.09p2) and TAU Sta. (March 13.71p2)
0164P 164P/Christensen from Dax Obs. (Feb. 22.01-03p3, 26.98-99p3, 27.98-01p3, 28.97-00p3, March 1.91-93p2, 3.94-95p2 & 6.91-94p3), Cielo Profundo Obs. (March 9.84-86p3), Modra Obs. (March 10.09-10p2), TAU Sta. (March 11.87-88p3), San Marcello Pistoiese Obs. (March 12.07p2), LINEAR (March 12.27-32p5), and Olmen Obs. (March 14.96-99p3)
0163P 163P/NEAT from PS1 (March 14.24-25p3)
0123P 123P/West-Hartley (q=2.129 AU, Q=5.590 AU, TP=2011 July 4.47099 TT) from Dax Obs. (Feb. 29.18-20p2), Hills/RAS Moorook (March 11.78-80p3), and Gisborne Obs. (March 14.51-57p3)
0117P 117P/Helin-Roman-Alu 1 from TAU Sta. (March 11.91-92p2), Haute Provence Obs. (March 14.90-94p5), Olmen Obs. (March 15.07-09p3), and Maisoncelles Obs. (March 15.97-99p3)
0091P 91P/Russell 3 from Murrumbateman Obs. (March 13.49-50p2)
0078P 78P/Gehrels (q=2.009 AU, Q=5.470 AU, TP=2012 Jan. 12.91477 TT) from Dax Obs. (Feb. 21.80-83p3, 22.81-83p3, 23.81-82p2, 26.80-82p2, 27.79-81p3 & 28.79-82p3), Kurihara Obs. (March 1.44-45p3), Zonalunar Obs. (March 6.82-84p2), Monte Deva Obs. (March 6.84-86p5, 8.85-87p5 & 10.86-87p5), La Vara Obs. (March 8.83p3, 10.83-84p3, 12.84-85p3 & 13.86-87p3), Rodeno Obs. (March 9.81-82p3), Chante-Perdrix Obs. (March 11.78-79p2 & 14.79-81p3), Manises Obs. (March 11.80-81p3), Montcabre Obs. (March 11.84p2), Castelmartini Obs. (March 12.77-78p3, 13.76-77p3 & 14.76-77p4), and Auger Obs. (March 13.01p2 & 14.99-00p4)
0060P 60P/Tsuchinshan 2 from CSS (March 13.11-12p4)
0049P 49P/Arend-Rigaux from Dax Obs. (Feb. 22.01-05p4, 22.12-14p3, 22.95-99p4, 26.92-95p3, 27.94-97p3, 28.09-11p3, 28.94-97p3, 29.09-10p3, March 1.97-99p3, 3.99-02p3 & 6.95-98p3), Tarbatness Obs. (Feb. 29.96p2 & March 4.94-95p2), Kurihara Obs. (March 1.48-49p2), La Dehesilla Obs. (March 3.96-99p6), Tzec Maun Obs. Mayhill (March 5.48-49p2), Monte Deva Obs. (March 6.01-03p5, 8.99-03p5, 11.02-05p5, 14.00-02p5 & 15.00-03p5), PJMSO (March 6.41-43p6), Olmen Obs. (March 7.03-04p3 & 15.09-12p3), La Vara Obs. (March 8.89-90p3 & 13.91-92p3), Starry Wanderer Obs. (March 9.88-89p3, 12.83-84p3 & 15.87-89p7), Rodeno Obs. (March 9.89-90p3), Carpe-Noctem Obs. (March 9.93-98p8, 11.97-99p4 & 14.86-88p3), Galati Obs. (March 10.04-05p3), Hills/RAS Moorook (March 11.66-67p3), TAU Sta. (March 11.97-98p3), San Marcello Pistoiese Obs. (March 12.06p2), Vinyols Obs. (March 12.83-89p3), Vallauris Obs. (March 12.91-94p4), LINEAR (March 13.28-32p5), Cielo Profundo Obs. (March 13.92-96p3), MLS (March 14.31-33p4 & 14.50-51p4), La Axarquia Obs. (March 14.82-83p3), and Maisoncelles Obs. (March 16.01-02p3)
0029P 29P/Schwassmann-Wachmann 1 from Dax Obs. (Feb. 22.12-15p3, 23.07-12p3, 27.03-06p3, 28.06-09p3, 29.03-07p3, March 2.06-10p3, 4.04-06p2 & 7.00-03p3), Monte Deva Obs. (March 6.06-09p5 & 14.03-06p5), Olmen Obs. (March 7.01-02p4 & 14.99-01p3), Maisoncelles Obs. (March 13.05-07p3, 15.04-06p3 & 16.08-11p3), PJMSO (March 13.39-40p5), Vinyols Obs. (March 13.91p1, 13.96p1 & 14.00p1), La Vara Obs. (March 13.95-96p3), Vallauris Obs. (March 13.99-02p3), Cielo Profundo Obs. (March 14.01-03p3), Auger Obs. (March 14.17p3), Cordell-Lorenz Obs. (March 14.21-27p5), and Gisborne Obs. (March 14.47p1 & 14.53-56p2)
0021P 21P/Giacobini-Zinner (q=1.030 AU, Q=6.005 AU, TP=2012 Feb. 11.73466 TT) from Dax Obs. (Feb. 21.77-80p5, 22.78-80p4, 27.79-81p4, 28.78-80p6 & 29.78-80p6) and Chante-Perdrix Obs. (March 9.78-79p3)

MPEC 2012-F10 - "16:08 UT" - Comet C/2012 E3 (Panstarrs)

CK12E030 C/2012 E3 (Panstarrs) (i=105.2°, q=3.688 AU, TP=2011 May 1.43144 TT) from PS1 (March 14.60-61p2), Sandlot Obs. (March 15.42-44p3), MRO (March 15.45-47p4 & 16.28-30p4), Spacewatch 1.8m (March 15.48-49p3), and Marco Micheli on Mauna Kea (March 15.54p3)

MPEC 2012-F09 - "12:59 UT" - 2012 ES10

K12E10S 2012 ES10 (risk-listed, Earth MOID=2.0 LD, H=23.7 ~62m) from MLS (March 15.37-41p7 & 16.32-34p3), Spacewatch 1.8m (March 16.35p3), and MRO (March 16.38-40p4)

MPEC 2012-F08 - "12:56 UT" - 2012 ER10

K12E10R 2012 ER10 (Earth MOID=3.9 LD, i=4.4°, H=25.5 ~27m, close passer) from MLS (March 15.33-36p4 & 15.40p4), MRO (March 15.39-41p4 & 16.26-29p4), San Marcello Pistoiese Obs. (March 15.99-01p3), Bosque Alegre Sta. (March 16.27p3), and Sandlot Obs. (March 16.31-33p4)

MPEC 2012-F07 - "12:54 UT" - 2012 EQ10

K12E10Q 2012 EQ10 (small asteroid, Earth MOID=9.9 LD, H=25.9 ~22m) from CSS (March 15.32-34p4 & 15.39p4), MRO (March 15.42-44p4 & 16.27-29p4), Saint-Barthelemy Obs. (March 15.95-96p3), Schiaparelli Obs. (March 15.99-01p2), San Marcello Pistoiese Obs. (March 16.02p2), Sabino Canyon Obs. (March 16.28-29p3), Bosque Alegre Sta. (March 16.29-30p4), and Sandlot Obs. (March 16.34p4)

MPEC 2012-F06 - "12:52 UT" - 2012 EP10

K12E10P 2012 EP10 (risk-listed, Earth MOID=0.9 LD, i=1.0°, H=29.3 ~5m, close passer) from MLS (March 15.27-30p4), MRO (March 15.36-38p4), and Spacewatch 1.8m (March 15.37-38p3 & 16.22-23p3)

MPEC 2012-F05 - "12:50 UT" - 2012 EO10

K12E10O 2012 EO10 (small asteroid, H=24.4 ~45m) from MLS (March 15.24-26p4 & 15.36-39p8) and MRO (March 15.29-31p4 & 16.22-26p4)

MPEC 2012-F04 - "12:45 UT" - 2012 EN10

K12E10N 2012 EN10 (Earth MOID=7.4 LD, H=26.1 ~20m, close passer) from CSS (March 15.23-25p4 & 15.36-37p3), MRO (March 15.27-29p4 & 16.18-21p4), ARO Westfield (March 15.32-33p4), Grasslands Obs. (March 15.35p3), St. Pardon de Conques Obs. (March 15.90-92p3), KLENOT (March 15.91p2), New Millennium Obs. (March 15.91-92p2), Schiaparelli Obs. (March 15.97-98p2), San Marcello Pistoiese Obs. (March 15.98-99p3), Bosque Alegre Sta. (March 16.09p4), and Sandlot Obs. (March 16.29-30p5)

<< DOU on 16 Mar. '12 >> MPEC 2012-F03 - "06:02 UT" - Daily Orbit Update

Observations of risk-listed objects
K12E05G 2012 EG5 (small asteroid, arc=3 days, H=24.1 ~51m, close passer, radar support) from Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (March 15.01p4), ARO Westfield (March 15.17p3), Bellavista Obs. (March 15.82p1 & 15.90p1), and Spacewatch 1.8m (March 16.11-12p3)
K12E00C 2012 EC (small asteroid, arc=15 days, H=23.5 ~68m, PMD candidate) from ARO Westfield (March 15.22-25p3) and Spacewatch 1.8m (March 16.17-18p3)
K12D14A 2012 DA14 (small asteroid, arc=21 days, H=24.4 ~45m, close passer, radar support) from ARO Westfield (March 14.35-37p3), Spacewatch 1.8m (March 15.50p3), and MRO (March 15.51-52p3)
A1955 101955 1999 RQ36 (PMD) from MRO (March 15.44-49p4)
Observations of recently (no longer) risk-listed objects
K12D32Z 2012 DZ32 (arc=18 days, H=21.7 ~155m) from PS1 (March 14.39-40p2) and ISON-NM Obs. (March 15.28-32p4)
Observations of close-passing objects
K12E08L 2012 EL8 (arc=1 day, H=28.3 ~7m, close passer) from ARO Westfield (March 15.28-29p2)
K12E05N 2012 EN5 (arc=1 day, H=27.3 ~12m, close passer) from Bisei Spaceguard Center (March 14.48p5 & 15.47-48p10), Castelmartini Obs. (March 14.88p4), Eschenberg Obs. (March 14.89-90p4), Saint-Barthelemy Obs. (March 14.89-90p3), Schiaparelli Obs. (March 14.89-90p5), Great Shefford Obs. (March 14.90p3), New Millennium Obs. (March 14.91p5), and ARO Westfield (March 15.20-21p9)
K12E05M 2012 EM5 (arc=1 day, H=25.3 ~29m, close passer) from Schiaparelli Obs. (March 14.92-93p4)
K12D31N 2012 DN31 (arc=19 days, H=24.0 ~54m, close passer) from ARO Westfield (March 13.37-38p2 & 14.38-39p3) and Holmes/CTIO (March 15.35-37p5)
K12B61V 2012 BV61 (arc=49 days, H=25.2 ~31m, close passer) from ARO Westfield (March 13.25-26p2 at V=21.9-22.2, 14.28-30p2 at V=22.2-6 & 15.23-27p3 at V=21.9-22.6)
Observation campaigns (radar support, potential mission destinations)
K02S00R 2002 SR (arc=3 opp, H=21.6 ~162m, PMD) from MLS (March 15.50-52p4)
E1018 141018 2001 WC47 (PMD, radar) from Hamamatsu-Yuto Obs. (March 15.50-54p7)
D8911 138911 2001 AE2 (PMD) from LINEAR (March 15.18-21p3)
D6618 136618 1994 CN2 (PMD) from Doc Greiner Research Obs. Rancho Hildalgo (DGRO-RH) (March 15.15-18p4)
-- Potential mission destinations list & ephemerides -- Planetary radar schedules: Arecibo & Goldstone
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K12E08K 2012 EK8 (arc=2 days, H=23.6 ~65m) from LINEAR (March 15.27-32p5), Bisei (March 15.50-51p4), Naef Obs. (March 15.83-86p4), New Millennium Obs. (March 15.86-87p5), Eschenberg Obs. (March 15.88-89p3), Siegen Obs. (March 15.89-93p4), and Saint-Barthelemy Obs. (March 15.93-94p2)
K12E05O 2012 EO5 (arc=2 days, H=23.4 ~71m) from Castelmartini Obs. (March 14.85-86p3), New Millennium Obs. (March 14.89p3), St. Pardon de Conques Obs. (March 14.90-92p3), GiaGa Obs. (March 14.91-92p2), Saint-Barthelemy Obs. (March 14.91-92p3), Bergen-Enkheim Obs. (March 15.86-88p3), and Guidestar Obs. (March 15.89-92p3)
K12E03R 2012 ER3 (arc=10 days, H=24.5 ~43m) from ARO Westfield (March 14.41-42p3)
K12E03N 2012 EN3 (arc=11 days, H=24.0 ~54m) from ARO Westfield (March 14.40p3)
K12E00B 2012 EB (arc=14 days, H=23.8 ~59m) from Holmes/CTIO (March 14.99-01p4)
K12D30W 2012 DW30 (arc=40 days, H=22.8 ~93m) from CSS (March 15.30-31p3)
K12D08O 2012 DO8 (arc=23 days, H=22.4 ~112m) from MLS (March 15.24-26p4)
K12C46O 2012 CO46 (arc=28 days, H=22.7 ~98m) from David Tholen's team on Mauna Kea (March 13.46-47p3 at R=22.3-4)
K12D32V 2012 DV32 (arc=19 days, H=21.9 ~141m) from Spacewatch 1.8m (March 15.52p3)
K12C55A 2012 CA55 (arc=44 days, H=21.8 ~148m) from KLENOT (March 15.86p5)
Observations of other asteroidal objects
K12E05L 2012 EL5 (Q=4.114 AU, arc=3 days, H=19.8 ~371m) from ARO Westfield (March 15.35p3) and Galati Obs. (March 16.07-08p13)
K12D75X 2012 DX75 (arc=15 days, H=20.4 ~282m) from ARO Westfield (March 15.34-35p4)
K12D61F 2012 DF61 (arc=17 days, H=20.5 ~269m) from ARO Westfield (March 14.17-18p4 & 15.19-20p4) and Guidestar Obs. (March 15.82-84p3)
K12D30U 2012 DU30 (arc=22 days, H=18.2 ~776m) from ARO Westfield (March 14.42-43p3) and Guidestar Obs. (March 16.07-10p3)
K12D04H 2012 DH4 (arc=27 days, H=20.7 ~245m) from LINEAR (March 15.28-32p5), CSS (March 15.45-46p4), Eschenberg Obs. (March 15.78p3), and Bergen-Enkheim Obs. (March 15.92-93p3)
K12C17C 2012 CC17 (arc=2 opp, H=20.5 ~269m) from LINEAR (March 15.22-25p4)
K12BD4J 2012 BJ134 (q=0.374 AU, Q=4.136 AU, arc=56 days, H=18.3 ~741m) from ARO Westfield (March 15.18-19p4) and Galati Obs. (March 15.78-79p10)
K12A11A 2012 AA11 (arc=62 days, H=20.0 ~339m) from Galati Obs. (March 15.79-81p18) and Klet Obs. (March 15.84p5)
K11Y15V 2011 YV15 (Q=4.394 AU, arc=3 opp, H=17.2 ~1.23 km) from Hamamatsu-Yuto Obs. (March 15.56-60p7)
K11WD4V 2011 WV134 (Q=4.676 AU, arc=2 opp, H=17.1 ~1.29 km) from LINEAR (March 15.11-15p5) and Galati Obs. (March 15.75-76p13)
K11Q02S 2011 QS2 (arc=2 opp, H=20.7 ~245m) from ARO Westfield (March 13.20-22p3 at V=21.9-22.2 & 15.18-21p3 at V=21.9-22.4)
K11E12B 2011 EB12 (arc=2 opp, H=21.3 ~186m) from CSS (March 15.25-27p4)
K10U07T 2010 UT7 (arc=2 opp, H=19.5 ~426m) from Spacewatch 1.8m (March 15.32-35p6)
K10T54K 2010 TK54 (arc=2 opp, H=19.3 ~467m) from Spacewatch 1.8m (March 15.26-30p6)
K10L33R 2010 LR33 (arc=3 opp, H=18.2 ~776m) from Spacewatch 0.9m (March 15.26-30p3)
K10L14N 2010 LN14 (arc=3 opp, H=21.1 ~204m) from Spacewatch 1.8m (March 15.23-25p3)
K09A15M 2009 AM15 (arc=3 opp, H=18.8 ~589m) from Mirasteilas Obs. (March 15.87-88p4)
K08Y32U 2008 YU32 (arc=3 opp, H=20.0 ~339m) from MLS (March 15.33-36p4)
K08T03Z 2008 TZ3 (arc=3 opp, H=20.3 ~295m) from Holmes/CTIO (March 15.39-41p3)
K08J30Z 2008 JZ30 (arc=2 opp, H=18.5 ~676m) from Guidestar Obs. (March 16.02-05p3)
K08G00D 2008 GD (q=0.268 AU, arc=4 opp, H=19.7 ~389m) from Guidestar Obs. (March 16.12-14p3)
K08E69C 2008 EC69 (Q=4.458 AU, arc=3 opp, H=17.2 ~1.23 km) from ARO Westfield (Feb. 28.17-18p2 at V=22.0-22.1 & March 14.05-08p3 at V=22.2-4)
K05C00J 2005 CJ (arc=4 opp, H=20.2 ~309m) from PS1 (March 15.57-58p2) and Mirasteilas Obs. (March 15.94-97p3)
K04Q07J 2004 QJ7 (arc=3 opp, H=18.5 ~676m) from Galati Obs. (March 15.81-82p18)
K02K04F 2002 KF4 (i=37.1°, Q=4.574 AU, arc=4 opp, H=17.0 ~1.35 km) from Spacewatch 0.9m (March 15.49-50p2)
K02E06M 2002 EM6 (arc=3 opp, H=20.1 ~323m) from Spacewatch 0.9m (March 15.11-18p3)
V9988 319988 2007 DK from CSS (March 15.35-36p4)
V8050 318050 2004 FC32 from LINEAR (March 15.33-38p3)
V7255 317255 2002 DJ5 from LINEAR (March 15.22-27p4)
V7212 317212 2002 CW46 from MLS (March 15.33-35p4)
U6595 306595 2000 GG147 from Galati Obs. (March 16.09-10p4)
U2830 302830 2003 FB from CSS (March 15.50-51p4)
S5540 285540 2000 GU127 from MLS (March 15.27-29p4)
O3298 243298 2008 EN82 from MLS (March 15.24-26p4)
K8565 208565 2002 CT11 from Spacewatch 0.9m (March 15.26-30p3)
I9008 189008 1996 FR3 from Spacewatch 0.9m (March 15.43-46p3)
I6822 186822 2004 FE31 from PS1 (March 15.56-58p2)
G3000 163000 2001 SW169 from LINEAR (March 15.22-27p5)
G2422 162422 2000 EV70 from MLS (March 15.47-48p3)
G2186 162186 1999 OP3 from LINEAR (March 15.16-21p5)
E4411 144411 2004 EW9 from PS1 (March 15.45-51p4)
E3947 143947 2003 YQ117 from PS1 (March 15.52-55p4)
89830 89830 2002 CE from PS1 (March 15.52-55p3)
68346 68346 2001 KZ66 from PS1 (March 15.52-54p3)
68267 68267 2001 EA16 from LINEAR (March 15.28-33p5)
32906 32906 1994 RH from CSS (March 15.16-18p4)
09400 9400 1994 TW1 from Spacewatch 0.9m (March 15.20-23p3)
07889 7889 1994 LX from Galati Obs. (March 15.76-78p15) and El Maestrat Obs. (March 15.80-82p11)
07358 7358 Oze (1995 YA3) from LINEAR (March 15.11-15p5)
06455 6455 1992 HE from Bernezzo Obs. (March 14.94-99p8) and LINEAR (March 15.34-38p5)
06053 6053 1993 BW3 from CSS (March 15.27-29p4)
05587 5587 1990 SB from MLS (March 15.33-36p4)
03554 3554 Amun (1986 EB) from CSS (March 15.37-39p4) and PS1 (March 15.52-55p4)
03102 3102 Krok (1981 QA) from Mirasteilas Obs. (March 16.00-02p3)
01862 1862 Apollo (1932 HA) from LINEAR (March 15.23-27p5)
01627 1627 Ivar (1929 SH) from LINEAR (March 15.16-21p5)

MPEC 2012-F02 - "02:18 UT" - Comet C/2012 E2 (SWAN)

CK12E020 C/2012 E2 (SWAN) (i=144.2°, q=0.007 AU, TP=2012 Mar. 15.03141 TT) from the Solar & Heliospheric Obs. (SOHO) (March 4.50p1, 5.50p1, 6.50p1, 9.50p1, 13.34p1, 13.38-66p21, 13.79-80p3 & 13.89-99p10) and STEREO-B (March 11.46p1, 11.52p1, 11.71-74p2, 11.79p1, 12.04p1 & 12.13-21p4)

MPEC 2012-F01 - "01:35 UT" - 2012 EO8

K12E08O 2012 EO8 (Earth MOID=1.4 LD, H=24.3 ~47m, close passer) from CSS (March 15.18-20p4 & 15.25-27p4), MRO (March 15.24-26p4), Grasslands Obs. (March 15.28-29p3), Moriyama Obs. (March 15.53p2), Eschenberg Obs. (March 15.79-80p3), Saint-Barthelemy Obs. (March 15.86-87p3), KLENOT (March 15.87p3), New Millennium Obs. (March 15.87-88p3), Valdicerro Obs. (March 15.89-93p3), Schiaparelli Obs. (March 15.89-91p3), St. Pardon de Conques Obs. (March 15.92-94p3), San Marcello Pistoiese Obs. (March 15.97-98p3), and Bosque Alegre Sta. (March 15.99p3)

Observers on 16 March '12

A total of 85 observers appear in today's MPECs.

Code	Observer / observatory
`251`	Arecibo in Puerto Rico, 3 in radar -- 30825, 100926, 7889
`I92`	Astreo Obs., 1 in MPEC 2012-F11 -- C/2009 P1
`H21`	Astronomical Research Obs. Westfield in Illinois, 19 in MPECs 2012-F03, 2012-F04, 2012-F12 & 2012-F14 -- 2012 EY11, 2012 ER3, 2012 EN5, 2012 EN3, 2012 EN10, 2012 EL8, 2012 EL5, 2012 EG5, 2012 EC, 2012 EA12, 2012 DX75, 2012 DU30, 2012 DN31, 2012 DF61, 2012 DA14, 2012 BV61, 2012 BJ134, 2011 QS2, 2008 EC69
`J51`	Atlante Obs. in the Canary Islands, 1 in MPEC 2012-F11 -- C/2009 P1
`I47`	Auger Obs. in Argentina, 8 in MPEC 2012-F11 -- C/2012 C1, C/2011 R1, C/2011 J2, C/2010 G2, C/2009 F4, 246P, 78P, 29P
`C93`	Bellavista Obs. in Italy, 1 in MPEC 2012-F03 -- 2012 EG5
`A74`	Bergen-Enkheim Obs. in Germany, 2 in MPEC 2012-F03 -- 2012 EO5, 2012 DH4
`C77`	Bernezzo Obs. in Italy, 1 in MPEC 2012-F03 -- 6455
`B75`	Betelgeuse Station in Italy, 5 in MPEC 2012-F11 -- C/2012 CH17, C/2012 A2, C/2011 J2, C/2011 F1, C/2010 R1
`300`	Bisei Spaceguard Center in Japan, 2 in MPEC 2012-F03 -- 2012 EN5, 2012 EK8
`B20`	Carmelita Obs. in Spain, 2 in MPEC 2012-F11 -- C/2011 F1, C/2009 P1
`I72`	Carpe-Noctem Obs., 3 in MPEC 2012-F11 -- C/2011 F1, C/2009 P1, 49P
`160`	Castelmartini Obs. in Italy, 4 in MPECs 2012-F03 & 2012-F11 -- 2012 EO5, 2012 EN5, 244P, 78P
`703`	Catalina Sky Survey (CSS) in Arizona, 14 in MPECs 2012-F01, 2012-F03, 2012-F04, 2012-F07, 2012-F11 & 2012-F14 -- 2012 EQ10, 2012 EO8, 2012 EN10, 2012 EA12, 2012 DW30, 2012 DH4, 2011 EB12, C/2010 R1, 32906, 319988, 302830, 6053, 3554, 60P
`807\|`	Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 4 in MPEC 2012-F03 -- 2012 EG5, 2012 EB, 2012 DN31, 2008 TZ3
`A77`	Chante-Perdrix Obs. in France, 4 in MPEC 2012-F11 -- C/2011 UF305, C/2009 P1, 78P, 21P
`J01`	Cielo Profundo Obs. in Spain, 6 in MPEC 2012-F11 -- C/2011 J2, P/2010 JC81, C/2009 P1, 164P, 49P, 29P
`850`	Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2012-F11 -- 29P
`821`	Cordoba Obs. Bosque Alegre Station in Argentina, 5 in MPECs 2012-F01, 2012-F04, 2012-F07, 2012-F08 & 2012-F14 -- 2012 ER10, 2012 EQ10, 2012 EO8, 2012 EN10, 2012 EA12
`958`	Dax Obs. in France, 24 in MPEC 2012-F11 -- C/2012 CH17, C/2012 C2, C/2012 B3, P/2012 B1, C/2012 A2, C/2012 A1, P/2011 W2, C/2011 J2, C/2011 F1, C/2010 S1, C/2010 R1, P/2010 JC81, C/2010 G2, C/2010 FB87, C/2009 P1, C/2006 S3, 246P, 244P, 164P, 123P, 78P, 49P, 29P, 21P
`G48`	Doc Greiner Research Obs. Rancho Hildalgo in New Mexico, 1 in MPEC 2012-F03 -- 136618
`J19`	El Maestrat Obs. in Spain, 2 in MPECs 2012-F03 & 2012-F11 -- 7889, 246P
`151`	Eschenberg Obs. in Switzerland, 4 in MPECs 2012-F01 & 2012-F03 -- 2012 EO8, 2012 EN5, 2012 EK8, 2012 DH4
`C73`	Galati Obs. in Romania, 10 in MPECs 2012-F03 & 2012-F11 -- 2012 EL5, 2012 BJ134, 2012 AA11, 2011 WV134, C/2011 F1, C/2009 P1, 2004 QJ7, 306595, 7889, 49P
`372`	Geisei Obs. in Japan, 1 in MPEC 2012-F11 -- C/2010 G2
`203`	GiaGa Obs. in Italy, 1 in MPEC 2012-F03 -- 2012 EO5
`E94`	Gisborne Obs. in New Zealand, 5 in MPEC 2012-F11 -- C/2011 L4, C/2009 F4, C/2006 S3, 123P, 29P
`651`	Grasslands Obs. in Arizona, 3 in MPECs 2012-F01, 2012-F04 & 2012-F14 -- 2012 EO8, 2012 EN10, 2012 EA12
`J95`	Great Shefford Obs. in England, 2 in MPECs 2012-F03 & 2012-F12 -- 2012 EY11, 2012 EN5
`A17`	Guidestar Obs. in Germany, 5 in MPEC 2012-F03 -- 2012 EO5, 2012 DU30, 2012 DF61, 2008 JZ30, 2008 GD
`379`	Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2012-F03 -- 2011 YV15, 141018
`511`	Haute Provence Obs. in Germany, 5 in MPEC 2012-F11 -- C/2012 BJ98, P/2012 B1, P/2011 W2, P/2010 JC81, 117P
`H15`	ISON-NM Obs. in New Mexico, 1 in MPEC 2012-F03 -- 2012 DZ32
`246`	KLENOT in the Czech Republic, 4 in MPECs 2012-F01, 2012-F03, 2012-F04 & 2012-F14 -- 2012 EO8, 2012 EN10, 2012 EA12, 2012 CA55
`C32`	Ka-Dar Obs. TAU Station in Russia, 15 in MPEC 2012-F11 -- C/2012 CH17, C/2012 B3, P/2012 B1, C/2012 A2, C/2012 A1, C/2011 J2, C/2010 R1, P/2010 JC81, C/2010 FB87, C/2005 L3, 240P, 171P, 164P, 117P, 49P
`585`	Kiev Comet Station in the Ukraine, 3 in MPEC 2012-F11 -- C/2011 F1, C/2010 R1, 246P
`046`	Klet Obs. in the Czech Republic, 1 in MPEC 2012-F03 -- 2012 AA11
`D95`	Kurihara Obs. in Japan, 5 in MPEC 2012-F11 -- C/2012 CH17, C/2012 A2, C/2010 G2, 78P, 49P
`704`	LINEAR in New Mexico, 17 in MPECs 2012-F03 & 2012-F11 -- 2012 EK8, 2012 DH4, 2012 CC17, C/2012 A2, 2011 WV134, 68267, 318050, 317255, 163000, 162186, 138911, 7358, 6455, 1862, 1627, 164P, 49P
`J31`	La Axarquia Obs. in Spain, 2 in MPEC 2012-F11 -- C/2009 P1, 49P
`212`	La Dehesilla Obs. in Spain, 1 in MPEC 2012-F11 -- 49P
`J38`	La Vara Obs. in Spain, 7 in MPEC 2012-F11 -- P/2012 B1, C/2011 F1, C/2009 P1, 244P, 78P, 49P, 29P
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 13 in MPECs 2012-F01, 2012-F03, 2012-F04, 2012-F05, 2012-F06, 2012-F07, 2012-F08, 2012-F09, 2012-F10, 2012-F12, 2012-F13 & 2012-F14 -- 2012 EZ11, 2012 EY11, 2012 ES10, 2012 ER10, 2012 EQ10, 2012 EP10, 2012 EO8, 2012 EO10, 2012 EN10, 2012 EA12, C/2012 E3, 2012 DA14, 101955
`C10`	Maisoncelles Obs. in France, 4 in MPEC 2012-F11 -- 246P, 117P, 49P, 29P
`J98`	Manises Obs. in Spain, 2 in MPEC 2012-F11 -- C/2009 P1, 78P
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2012-F03 -- 2012 CO46
`568_`	Marco Micheli on Mauna Kea in Hawaii, 1 in MPEC 2012-F10 -- C/2012 E3
`B67`	Mirasteilas Obs. in Switzerland, 3 in MPEC 2012-F03 -- 2009 AM15, 2005 CJ, 3102
`118`	Modra Obs. in Slovakia, 4 in MPEC 2012-F11 -- C/2012 CH17, C/2012 A2, P/2010 JC81, 164P
`213`	Montcabre Obs. in Spain, 7 in MPEC 2012-F11 -- C/2012 E1, C/2012 CH17, C/2012 B3, P/2012 B1, C/2011 F1, C/2009 P1, 78P
`945`	Monte Deva Obs. in Spain, 5 in MPEC 2012-F11 -- C/2011 F1, C/2009 P1, 78P, 49P, 29P
`C91`	Montevenere Obs., 1 in MPEC 2012-F11 -- C/2009 P1
`900`	Moriyama Obs. in Japan, 1 in MPEC 2012-F01 -- 2012 EO8
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 18 in MPECs 2012-F03, 2012-F05, 2012-F06, 2012-F08, 2012-F09, 2012-F11, 2012-F12 & 2012-F13 -- 2012 EZ11, 2012 EY11, 2012 ES10, 2012 ER10, 2012 EP10, 2012 EO10, 2012 DO8, P/2011 Y2, P/2011 U2, C/2011 J2, 2008 YU32, 2002 SR, 317212, 285540, 243298, 162422, 5587, 49P
`E07`	Murrumbateman Obs. in New South Wales, 4 in MPEC 2012-F11 -- C/2012 C1, P/2011 W2, P/2010 UH55, 91P
`A13`	Naef Obs. in Switzerland, 2 in MPECs 2012-F03 & 2012-F11 -- 2012 EK8, 228P
`I89`	Nerpio Obs. in Italy, 1 in MPEC 2012-F11 -- C/2012 E1
`A24`	New Millennium Obs. in Italy, 6 in MPECs 2012-F01, 2012-F03, 2012-F04 & 2012-F14 -- 2012 EO8, 2012 EO5, 2012 EN5, 2012 EN10, 2012 EK8, 2012 EA12
`C23`	Olmen Obs. in Belgium, 14 in MPEC 2012-F11 -- C/2012 CH17, C/2012 A2, C/2011 UF305, C/2011 J2, C/2011 F1, C/2010 S1, P/2010 JC81, C/2009 P1, C/2006 S3, 246P, 164P, 117P, 49P, 29P
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 12 in MPECs 2012-F03, 2012-F10 & 2012-F11 -- C/2012 E3, 2012 DZ32, P/2010 JC81, 2005 CJ, 89830, 68346, 186822, 144411, 143947, 3554, 240P, 163P
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 4 in MPEC 2012-F11 -- C/2011 F1, C/2009 P1, 49P, 29P
`H06%`	Ernesto Guido in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2012-F11 -- C/2009 P1
`H06\|`	Hidetaka Sato in Japan via RAS Obs. Mayhill in New Mexico, 3 in MPEC 2012-F11 -- C/2012 BJ98, C/2012 B3, 171P
D90`	Kevin Hills in England via RAS Obs. Moorook in South Australia, 7 in MPEC 2012-F11 -- C/2012 C1, C/2010 G2, 246P, 244P, 242P, 123P, 49P
`939`	Rodeno Obs. in Spain, 5 in MPEC 2012-F11 -- C/2011 F1, C/2009 P1, 246P, 78P, 49P
`C50`	STEREO-B in heliocentric orbit trailing Earth, 1 in MPEC 2012-F02 -- C/2012 E2
`854`	Sabino Canyon Obs. in Arizona, 1 in MPEC 2012-F07 -- 2012 EQ10
`B04`	Saint-Barthelemy Obs. in Italy, 6 in MPECs 2012-F01, 2012-F03, 2012-F07 & 2012-F14 -- 2012 EQ10, 2012 EO8, 2012 EO5, 2012 EN5, 2012 EK8, 2012 EA12
`104`	San Marcello Pistoiese Obs. in Italy, 8 in MPECs 2012-F01, 2012-F04, 2012-F07, 2012-F08, 2012-F11 & 2012-F14 -- 2012 ER10, 2012 EQ10, 2012 EO8, 2012 EN10, 2012 EA12, C/2009 P1, 164P, 49P
`H36`	Sandlot Obs. in Kansas, 5 in MPECs 2012-F04, 2012-F07, 2012-F08, 2012-F10 & 2012-F14 -- 2012 ER10, 2012 EQ10, 2012 EN10, 2012 EA12, C/2012 E3
`C71`	Sant Marti Sesgueioles Obs. in Spain, 1 in MPEC 2012-F11 -- 244P
`B56`	Sant Pere Obs. in Spain, 2 in MPEC 2012-F11 -- C/2011 F1, C/2006 S3
`204`	Schiaparelli Obs. in Italy, 7 in MPECs 2012-F01, 2012-F03, 2012-F04, 2012-F07, 2012-F11 & 2012-F14 -- 2012 EQ10, 2012 EO8, 2012 EN5, 2012 EN10, 2012 EM5, 2012 EA12, C/2012 A1
`510`	Siegen Obs. in Germany, 2 in MPECs 2012-F03 & 2012-F11 -- 2012 EK8, C/2009 P1
`249`	Solar & Heliospheric Obs. in Earth-Sun L1 HALO orbit, 1 in MPEC 2012-F02 -- C/2012 E2
`691`	Spacewatch 0.9m telescope in Arizona, 7 in MPECs 2012-F03 & 2012-F11 -- P/2011 C2, 2010 LR33, 2002 KF4, 2002 EM6, 208565, 189008, 9400
`291`	Spacewatch 1.8m telescope in Arizona, 11 in MPECs 2012-F03, 2012-F06, 2012-F09, 2012-F10 & 2012-F12 -- 2012 EY11, 2012 ES10, 2012 EP10, 2012 EG5, 2012 EC, C/2012 E3, 2012 DV32, 2012 DA14, 2010 UT7, 2010 TK54, 2010 LN14
`I93`	St. Pardon de Conques Obs. in France, 4 in MPECs 2012-F01, 2012-F03, 2012-F04 & 2012-F14 -- 2012 EO8, 2012 EO5, 2012 EN10, 2012 EA12
`C36`	Starry Wanderer Obs., 2 in MPEC 2012-F11 -- C/2011 F1, 49P
`I81`	Tarbatness Obs. in Scotland, 4 in MPEC 2012-F11 -- C/2011 F1, C/2009 P1, 246P, 49P
`H10`	Tzec Maun Obs. Mayhill in New Mexico, 2 in MPEC 2012-F11 -- C/2009 P1, 49P
`C92`	Valdicerro Obs. in Italy, 1 in MPEC 2012-F01 -- 2012 EO8
`B51`	Vallauris Obs. in France, 8 in MPEC 2012-F11 -- C/2012 CH17, C/2012 A2, C/2011 F1, C/2010 R1, C/2009 P1, 246P, 49P, 29P
`H47`	Vicksburg Obs. in Mississippi, 2 in MPEC 2012-F11 -- C/2010 R1, 246P
`C90`	Vinyols Obs., 3 in MPEC 2012-F11 -- P/2012 B1, 49P, 29P
`C42`	Xingming Obs. in China, 1 in MPEC 2012-F11 -- C/2009 P1
`J08`	Zonalunar Obs. in Spain, 1 in MPEC 2012-F11 -- 78P

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

Impact Risk Monitoring on 16 March '12

**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 CLOMON2 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

2012 EY11	JPL Sentry	2209	2022-2082	7	1.6e-09	-6.99	-7.24	0	JPL: "Analysis based on 24 observations spanning 2.0155 days (2012-Mar-14.19556 to 2012-Mar-16.21101)." Diameter approximately 0.170 km. from mean, weighted H=21.5.

2012 ES10	JPL Sentry	1627	2032-2111	54	1.2e-06	-4.92	-5.34	0	JPL: "Analysis based on 17 observations spanning 1.0334 days (2012-Mar-15.36929 to 2012-Mar-16.40265)." Diameter approximately 0.060 km. from mean, weighted H=23.8.

2012 EP10	JPL Sentry	1627	2038-2112	87	1.1e-04	-6.41	-6.98	0	JPL: "Analysis based on 14 observations spanning .95623 days (2012-Mar-15.27159 to 2012-Mar-16.22782)." Diameter approximately 0.005 km. from mean, weighted H=29.3.

2012 EG5	JPL Sentry	1627	2048	1	6.2e-07	-5.77	-5.77	0	JPL: "Analysis based on 30 observations spanning 2.8144 days (2012-Mar-13.30201 to 2012-Mar-16.11641)." Diameter approximately 0.049 km. from mean, weighted H=24.2.
2012 EG5	NEODyS	1627	2087-2087	1	3.12e-09	-8.39	-8.39	0	NEODyS: "Based on 30 optical observations (of which 0 are rejected as outliers) from 2012-03-13.303 to 2012-03-16.117."

2012 EC	JPL Sentry	1627	2049-2101	8	4.6e-06	-5.02	-5.28	0	JPL: "Analysis based on 66 observations spanning 14.836 days (2012-Mar-01.3419 to 2012-Mar-16.17828)." Diameter approximately 0.067 km. from mean, weighted H=23.5.
2012 EC	NEODyS	1627	2049-2087	4	7.33e-07	-5.66	-5.91	0	NEODyS: "Based on 66 optical observations (of which 0 are rejected as outliers) from 2012-03-01.343 to 2012-03-16.179."

2012 DA14	JPL Sentry	1627	2020-2042	26	7.5e-05	-3.51	-3.92	0	JPL: "Analysis based on 145 observations spanning 21.486 days (2012-Feb-23.03431 to 2012-Mar-15.52019)." Diameter approximately 0.044 km. from mean, weighted H=24.4.
2012 DA14	NEODyS	1627	2020-2090	317	3.56e-04	-3.14	-3.83	0	NEODyS: "Based on 148 optical observations (of which 4 are rejected as outliers) from 2012-02-23.029 to 2012-03-15.521."

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 16 March '12

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

2358	Noted Radar Astrometry database update - see above
2209	Noted that JPL Sentry has posted 2012 EY11 as an impact risk - see above
2108	Noted Radar Astrometry database update - see above
2021	Grabbed MPEC 2012-F12 - 2012 EY11 - see above Grabbed MPEC 2012-F13 - 2012 EZ11 - see above Grabbed MPEC 2012-F14 - 2012 EA12 - see above
1943	Noted Radar Astrometry database update - see above
1835	Updated Traffic Report
1812	Grabbed MPEC 2012-F11 - Observations and Orbits of Comets - see above
1627	Noted that JPL Sentry has updated its 2012 DA14 risk assessment - see above Noted that NEODyS has updated its 2012 DA14 risk assessment - see above Noted that JPL Sentry has updated its 2012 EC risk assessment - see above Noted that NEODyS has updated its 2012 EC risk assessment - see above Noted that JPL Sentry has updated its 2012 EG5 risk assessment - see above Noted that NEODyS has posted 2012 EG5 as an impact risk - see above Noted that JPL Sentry has posted 2012 EP10 as an impact risk - see above Noted that JPL Sentry has posted 2012 ES10 as an impact risk - see above Grabbed MPEC 2012-F03 - Daily Orbit Update - see above Grabbed MPEC 2012-F04 - 2012 EN10 - see above Grabbed MPEC 2012-F05 - 2012 EO10 - see above Grabbed MPEC 2012-F06 - 2012 EP10 - see above Grabbed MPEC 2012-F07 - 2012 EQ10 - see above Grabbed MPEC 2012-F08 - 2012 ER10 - see above Grabbed MPEC 2012-F09 - 2012 ES10 - see above Grabbed MPEC 2012-F10 - Comet C/2012 E3 (Panstarrs) - see above
0320	Grabbed MPEC 2012-F02 - Comet C/2012 E2 (SWAN) - see above
0137	Grabbed MPEC 2012-F01 - 2012 EO8 - see above

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