2010-04-14 Tracking News

Contents on 14 April '10

IAU Minor Planet Center
- NEOCP Activity -- six listings: 2 new, 4 updated
- New MPECs -- nine MPECs
Observers -- 79 observing facilities
Impact Risk Monitoring -- seven 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 14 April '10

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

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and four updated listings. Of these, two were "one nighters." So far The Tracking News has counted a total of thirteen 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 14 April '10

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been nine MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2010-G106 time-stamped "06:10 UT" - Daily Orbit Update - see below
MPEC 2010-G107 time-stamped "11:35 UT" - 2010 GW62 - see below
MPEC 2010-G108 time-stamped "11:38 UT" - 2010 GX62 - see below
MPEC 2010-G109 time-stamped "14:02 UT" - 2010 GW64 - see below
MPEC 2010-G110 time-stamped "20:26 UT" - Comet P/2010 E2 (Jarnac) - see below
MPEC 2010-G111 time-stamped "20:33 UT" - Comet C/2010 E5 (Scotti) - see below
MPEC 2010-G112 time-stamped "20:37 UT" - Comet C/2010 F1 (Boattini) - see below
MPEC 2010-G113 time-stamped "20:41 UT" - Comet C/2010 F3 (Scotti) - see below
MPEC 2010-G114 time-stamped "20:57 UT" - Observations of Comets

MPEC 2010-G114 - "20:57 UT" - Observations of Comets

CK10B010 C/2010 B1 (Cardinal) from Stixendorf Obs. (April 8.91-92p3), Castelmartini Obs. (April 9.79p3), Tzec Maun Obs. Mayhill (April 10.14-16p3), and Petit Jean Mtn. South Obs. (PJMSO) (April 11.13-14p7 & 12.10p7)
PK10A050 P/2010 A5 (LINEAR) from Tzec Maun Obs. Moorook (March 24.71-73p2, 25.69-70p2 & April 11.69-73p3), Monte Deva Obs. (April 11.06-08p5), Kambah Obs. (April 11.73-74p2), and PJMSO (April 13.34-35p7)
PK10A030 P/2010 A3 (Hill) from Masia Cal Maciarol Modul 1 (MCM1) (April 10.89-90p3), PJMSO (April 12.11-12p7), and RAS Obs. Mayhill (April 12.13-14p3)
CK09Y010 C/2009 Y1 (Catalina) from PJMSO (April 6.22-23p6), Posadas Obs. (April 10.96-97p3), La Vara Obs. (April 10.97-98p3), and Tzec Maun Obs. Mayhill (April 11.38-41p3)
CK09U030 C/2009 U3 (Hill) from PJMSO (April 12.12-13p6 & 14.24-25p5)
CK09K050 C/2009 K5 (McNaught) from Castelmartini Obs. (April 8.01-02p3 & 10.11-12p3), Modra Obs. (April 9.11-12p5), Cielo Profundo Obs. (April 10.16-18p3), PJMSO (April 10.41-42p6 & 13.40-41p6), Krasnoyarsk Obs. (April 10.87-89p3), Maisoncelles Obs. (April 11.13-15p7), El Maestrat Obs. (April 11.16-19p6), Tzec Maun Obs. Mayhill (April 11.39-42p3), and Vicksburg Obs. (April 11.44-45p4)
CK09F040 C/2009 F4 (McNaught) from Tzec Maun Obs. Moorook (March 15.69-72p3), Gisborne Obs. (April 11.36-40p4), and Kambah Obs. (April 11.65p2 & 12.71p1)
CK09F020 C/2009 F2 (McNaught) from RAS Mayhill (April 10.37p3), Gisborne Obs. (April 11.36-40p4), and Kambah Obs. (April 12.68-69p2)
CK08Q030 C/2008 Q3 (Garradd) from Posadas Obs. (April 10.00-01p3), Cielo Profundo Obs. (April 11.86-89p3), and the Catalina Sky Survey (CSS) (April 12.28-30p4)
CK08N010 C/2008 N1 (Holmes) from Maidbronn Obs. (April 8.06p3), Capannoli Obs. (April 9.89p1), Alginet Obs. (April 9.91-92p3), Vitebsk Obs. (April 9.93-94p2), Castelmartini Obs. (April 9.99-00p3), El Olivo Obs. (April 10.01p3), Posadas Obs. (April 10.07p3), PJMSO (April 10.35-36p6, 11.31p6, 13.24p6 & 14.29p6), El Maestrat Obs. (April 11.99p1), and Vicksburg Obs. (April 12.26-27p3)
CK08F75K C/2008 FK75 (Lemmon-Siding Spring) from Vitebsk Obs. (April 10.01p2), Kiev Comet Station (April 10.06-07p7), Castelmartini Obs. (April 10.08-09p3), PJMSO (April 10.43-44p6 & 13.38p6), Maisoncelles Obs. (April 11.09-10p7), Monte Deva Obs. (April 11.09-10p5), and Tzec Maun Obs. Mayhill (April 11.38-41p3)
CK07S020 C/2007 S2 (Lemmon) from Schiaparelli Obs. (April 9.96p2) and Kambah Obs. (April 12.63-64p2)
CK07Q03a C/2007 Q3-A (Siding Spring A) from Odessa-Mayaki Obs. (March 25.10p2 & 27.11-12p4), Tzec Maun Obs. Mayhill (April 3.34p3, 3.41p2 & 10.22-24p3), Owls & Ravens Obs. (April 6.88-90p2), Isle of Man Obs. (April 7.88-89p4), Brixiis Obs. (April 8.85-86p9), Alginet Obs. (April 9.90p3), Carmelita Obs. (April 9.91-93p3), Mataro Obs. (April 9.93-94p3), Malaga Obs. (April 10.03-05p3 & 11.93-99p3), Casal Lumbroso Obs. (April 10.08-10p8), Posadas Obs. (April 10.08p3), PJMSO (April 10.40-41p6 & 13.28-29p6), Montcabre Obs. (April 10.89-92p2 & 10.97p1), La Vara Obs. (April 10.93-94p3), Zonalunar Obs. (April 10.94p1), Rouet Obs. (April 10.98-02p12), Maisoncelles Obs. (April 10.00-07p18), Atlante Obs. (April 11.01-03p3), Monte Deva Obs. (April 11.05p5), El Maestrat Obs. (April 11.91-95p8), Faulkes Telescope North (April 12.50-52p4), Nazaret Obs. (April 12.88-90p3 & 13.03p1), and Borken Obs. (April 13.03-04p5)
CK06Q010 C/2006 Q1 (McNaught) from Vitebsk Obs. (April 10.02-03p2), Maisoncelles Obs. (April 11.11-13p5), and PJMSO (April 13.39-40p6)
CK05L030 C/2005 L3 (McNaught) from Vicksburg Obs. (April 9.18-21p3 & 11.24-25p4), Castelmartini Obs. (April 9.99p3), RAS Mayhill (April 10.38-39p2), Vitebsk Obs. (April 10.86-87p3), Paus Obs. (April 10.92-94p3), Posadas Obs. (April 11.02p3), MCM1 (April 11.04-05p3), CSS (April 11.18-20p4), PJMSO (April 11.28-29p6 & 14.25-26p6), and Chante-Perdrix Obs. (April 14.12-13p2)
0235P 235P/LINEAR from Ageo Obs. (April 3.64-66p2) and Schiaparelli Obs. (April 9.95p1 & 10.01p1)
0203P 203P/Korlevic from Ageo Obs. (April 3.52-53p2) and La Vara Obs. (April 12.90-91p3)
0169P 169P/NEAT from Castelmartini Obs. (April 9.86p3) and Schiaparelli Obs. (April 10.90p1)
0157P 157P/Tritton from Ageo Obs. (April 3.50-51p2), Castelmartini Obs. (April 9.81p3), RAS Mayhill (April 12.12p3), and Nazaret Obs. (April 12.84-88p3)
0149P 149P/Mueller 4 from Capannoli Obs. (April 9.86p2), Vitebsk Obs. (April 9.99p3), Kiev Comet Station (April 10.00-01p3), Castelmartini Obs. (April 10.02p2), Cielo Profundo Obs. (April 10.05-07p3), and Chante-Perdrix Obs. (April 14.10-11p3)
0118P 118P/Shoemaker-Levy 4 from Castelmartini Obs. (April 9.83-84p3), Alginet Obs. (April 9.87p3), Blanquita Obs. (April 9.87-89p3), LINEAR (April 10.13-16p4), La Vara Obs. (April 10.88p3), MCM1 (April 10.97p3), and PJMSO (April 12.15-17p6)
0103P 103P/Hartley 2 from Gemini South Obs. (March 12.38-40p4 & April 9.38-41p5), Magdalena Ridge Obs. (MRO) (April 8.45-49p3, 10.46-49p3, 11.46-49p4 & 14.44-49p5), and Chante-Perdrix Obs. (April 14.14p2)
0094P 94P/Russell 4 from Odessa-Mayaki Obs. (April 2.86p2, 3.76-79p6 & 4.84p2), Vicksburg Obs. (April 7.16-18p6 & 11.15-19p4), LINEAR (April 9.24-29p5 & 10.24-28p5), Castelmartini Obs. (April 9.92-93p3), Carmelita Obs. (April 10.88-90p3), Monte Deva Obs. (April 10.92-93p5), MCM1 (April 11.01-02p3), Masia Cal Maciarol Modul 8 (MCM8) (April 11.01-02p3), Cielo Profundo Obs. (April 12.87-89p3), Sierra Stars Obs. (April 14.17-22p5), and PJMSO (April 14.27-28p5)
0081P 81P/Wild 2 from Tzec Maun Obs. Mayhill (Feb. 19.44-46p2, April 3.36-39p4, 9.43-47p2 & 10.34-36p2), Tzec Maun Obs. Moorook (March 24.68-69p4, April 9.79p1 & 11.54-56p2), Odessa-Mayaki Obs. (March 25.09-12p3, 26.99p1 & 27.10p2), Remanzacco Obs. (April 2.93-94p2), Castelmartini Obs. (April 7.99-00p3 & 10.03p3), El Olivo Obs. (April 9.91-92p3), Alginet Obs. (April 9.94p3), Kiev Comet Station (April 9.95-98p13), Mataro Obs. (April 9.97-01p3), Casal Lumbroso Obs. (April 10.01-07p20), Linceo Obs. (April 10.02-04p3), Montcabre Obs. (April 10.02-03p3), Posadas Obs. (April 10.06p3), PJMSO (April 10.39-40p6 & 13.25-27p6), Blanquita Obs. (April 10.89p1 & 10.94-95p2), La Vara Obs. (April 10.91-92p3), Corner Obs. (April 10.97-02p7), Atlante Obs. (April 10.98-00p3), Monte Deva Obs. (April 11.03-04p5), MCM8 (April 11.10p3), MCM1 (April 11.10-11p3), Borken Obs. (April 11.99-01p6), Vicksburg Obs. (April 12.35-37p3), Nazaret Obs. (April 13.09p1), and Cordell-Lorenz Obs. (April 14.27-31p4)
0074P 74P/Smirnova-Chernykh from LINEAR (April 9.36-40p5), Purple Mtn. Obs. Xuyi Station (Xuyi Sta.) (April 9.59-64p4), Alginet Obs. (April 9.93p3), El Olivo Obs. (April 9.98p3), Posadas Obs. (April 10.04-05p3), PJMSO (April 10.38-39p6), Monte Deva Obs. (April 10.97-02p5), MCM1 (April 11.08-09p3), Vicksburg Obs. (April 12.30-33p3), the Mt. Lemmon Survey (MLS) (April 13.32-34p4), and the Spacewatch 1.8m telescope (April 14.43-44p3)
0067P 67P/Churyumov-Gerasimenko from Schiaparelli Obs. (March 13.01-05p2) and Nazaret Obs. (April 12.99-00p3)
0030P 30P/Reinmuth 1 from Ageo Obs. (April 3.58p2), Odessa-Mayaki Obs. (April 4.81-83p7), Castelmartini Obs. (April 9.83p1), Alginet Obs. (April 9.85-86p3), La Vara Obs. (April 10.87p3), and MCM1 (April 10.95p3)
0029P 29P/Schwassmann-Wachmann 1 from Isle of Man Obs. (April 7.88p3), Maidbronn Obs. (April 7.89-92p3), Vicksburg Obs. (April 9.09-12p3, 10.09-10p3, 12.11p1 & 12.16p1), Mataro Obs. (April 9.82-84p2), Linceo Obs. (April 9.83-86p3), Montcabre Obs. (April 9.86-87p3), Masquefa Obs. (April 9.87-90p3), Alginet Obs. (April 9.88-89p3), Castelmartini Obs. (April 9.88p1), Carmelita Obs. (April 9.88-90p3 & 10.84-86p3), El Olivo Obs. (April 9.90p3), Tzec Maun Obs. Mayhill (April 10.22-24p3), Schiaparelli Obs. (April 10.87p1 & 10.93p1), Monte Deva Obs. (April 10.89-91p5), Gualba Obs. (April 10.93p2 & 14.81-82p3), Posadas Obs. (April 10.95-96p3), MCM8 (April 10.97-98p3), PJMSO (April 11.16-17p5 & 12.13-14p3), Gisborne Obs. (April 11.35-40p3), Cordell-Lorenz Obs. (April 12.10-14p2), Jarnac Obs. (April 12.13-16p3), La Vara Obs. (April 12.88-89p3), Nazaret Obs. (April 12.95-98p3), Yatsuka Obs. (April 13.50p2), and Waterlooville Obs. (April 13.84-86p2)
0010P 10P/Tempel 2 from Zonalunar Obs. (April 11.11-17p3), Maisoncelles Obs. (April 11.16-17p4), Tzec Maun Obs. Mayhill (April 11.44-46p3), Kambah Obs. (April 12.73p2), and Chante-Perdrix Obs. (April 14.16p3)

MPEC 2010-G113 - "20:41 UT" - Comet C/2010 F3 (Scotti)

CK10F030 C/2010 F3 (Scotti) (i=4.5°, q=5.215 AU, TP=2010 Oct. 12.351 TT) from Remanzacco Obs. (April 4.88-89p2), Spacewatch 1.8m (April 12.24-25p3), and Cielo Profundo Obs. (April 12.93-96p3)

MPEC 2010-G112 - "20:37 UT" - Comet C/2010 F1 (Boattini)

CK10F010 C/2010 F1 (Boattini) (i=64.9°, q=3.588 AU, Q=133.075 AU, TP=2009 Nov. 10.5898 TT) from Ageo Obs. (April 3.74p2), Remanzacco Obs. (April 5.98-99p2), Vitebsk Obs. (April 9.84p3), Castelmartini Obs. (April 9.93-94p3), Kiev Comet Station (April 10.03p1 & 13.88-91p5), PJMSO (April 11.20-23p7 & 12.21-22p6), and CSS (April 11.22-24p4)

MPEC 2010-G111 - "20:33 UT" - Comet C/2010 E5 (Scotti)

CK10E050 C/2010 E5 (Scotti) (Centaur, q=3.890 AU, Q=45.656 AU, TP=2009 Nov. 21.0487 TT) from Remanzacco Obs. (March 18.07p2), the Spacewatch 0.9m telescope (March 18.24-28p3), Klet Obs. (April 7.99-02p4), CAST Obs. (April 8.88p1), Spacewatch 1.8m (April 12.20-23p3), Cordell-Lorenz Obs. (April 14.17p1 & 14.23p1), and MLS (April 14.21-23p4)

MPEC 2010-G110 - "20:26 UT" - Comet P/2010 E2 (Jarnac)

PK10E020 P/2010 E2 (Jarnac) (Centaur, q=2.399 AU, Q=14.893 AU, TP=2010 Apr. 7.9386 TT) from Ageo Obs. (April 3.70-71p2), Remanzacco Obs. (April 6.89p2), CSS (April 10.23-25p4), PJMSO (April 10.34-35p6, 11.25-27p7 & 12.22-25p7), Paus Obs. (April 10.86-87p2), Schiaparelli Obs. (April 10.92p1 & 10.96p1), MLS (April 11.26-28p4), Baldone Obs. (April 11.82-87p2), Spacewatch 1.8m (April 12.26-28p3), Moletai Obs. (April 12.86-91p4), and Kiev Comet Station (April 13.93-94p6)
FurthP FurtheP/2010 D1 are very desirable.

MPEC 2010-G109 - "14:02 UT" - 2010 GW64

K10G64W 2010 GW64 (i=105.4°, q=3.716 AU, Q=187.312 AU, H=14.7 ~3.89 km) was discovered at 1843 UT on 6 April by WISE, which observed it at April 6.78p1, 6.91p1, 7.04p1, 7.18p1, 7.24p1, 7.31p1, 7.38p1, 7.44p1, 7.51p1, 7.64p1, and 7.77p1. The discovery was confirmed by Astronomical Research Obs. Westfield (ARO Westfield) (April 14.07-09p4), Tenagra II Obs. (April 14.12-13p3), Spacewatch 0.9m (April 14.14p3), Rodeo Obs. (April 14.18p3), MRO (April 14.18-21p4), and Sandlot Obs. (April 14.21-24p2).

MPEC 2010-G108 - "11:38 UT" - 2010 GX62

K10G62X 2010 GX62 (risk-listed, Q=5.020 AU, Earth MOID=4.6 LD, H=20.4 ~282m) was discovered at 1349 UT on 10 April by WISE, which observed it at April 10.58p1, 10.71p1, 10.77p1, 10.84p1, and 11.04p1. The discovery was confirmed by MRO (April 14.43-46p4) and Tenagra II Obs. (April 14.44-45p2).

MPEC 2010-G107 - "11:35 UT" - 2010 GW62

K10G62W 2010 GW62 (H=19.0 ~537m) was discovered at 2143 UT on 9 April by WISE, which observed it at April 9.91p1, 10.17p1, 10.24p1, 10.30p1, 10.37p1, 10.43p1, 10.50p1, and 10.57p1. The discovery was confirmed by MRO (April 14.31-35p4).

<< DOU on 14 Apr. '10 >> MPEC 2010-G106 - "06:10 UT" - Daily Orbit Update

Observations of risk-listed objects
K10G35E 2010 GE35 (small asteroid, arc=1 day, H=22.9 ~89m) from Kevin Hills via RAS Obs. Moorook (April 13.62-64p3)
K10G33R 2010 GR33 (small asteroid, arc=2 days, H=22.6 ~102m) from ARO Westfield (April 13.39-42p3)
K10G23V 2010 GV23 (small asteroid, arc=4 days, H=27.7 ~10m) from ARO Westfield (April 13.17-19p7) and Tenagra II Obs. (April 13.33-34p3)
K10G07H 2010 GH7 (small asteroid, arc=6 days, H=27.4 ~11m) from ARO Westfield (April 13.39-41p3)
K05Y55U 2005 YU55 (almost small, arc=2 opp, H=21.9 ~141m) from Nazaret Obs. (April 13.01-02p6), Hobbs Obs. (April 13.10-11p2), PJMSO (April 13.23p7), Sandlot Obs. (April 13.25p3), ARO Westfield (April 13.28-29p6), and Bigmuskie Obs. (April 13.88-89p3)
Observations of recently (no longer) risk-listed objects
K10G07T 2010 GT7 (Q=4.512 AU, arc=6 days, H=20.3 ~295m) from ARO Westfield (April 13.36-37p4)
K10G07S 2010 GS7 (Q=4.518 AU, arc=5 days, H=21.6 ~162m) from ARO Westfield (April 11.17-19p6)
K10G06Y 2010 GY6 (arc=7 days, H=19.3 ~467m) from ARO Westfield (April 13.15-16p4)
K10G06B 2010 GB6 (small asteroid, arc=8 days, H=22.1 ~129m) from ARO Westfield (April 13.13-14p3)
K10F10F 2010 FF10 (arc=24 days, H=21.7 ~155m) from LINEAR (April 13.31-37p5)
K10E44K 2010 EK44 (Q=5.039 AU, arc=29 days, H=19.7 ~389m) from ARO Westfield (April 11.15-17p4)
Observations of small asteroids (H>22.0)
K10G33P 2010 GP33 (arc=2 days, H=25.8 ~23m) from ARO Westfield (April 13.21-22p3) and Tenagra II Obs. (April 13.32p2)
K10G30J 2010 GJ30 (arc=3 days, H=24.5 ~43m) from Tenagra II Obs. (April 13.42-43p2)
K10G30E 2010 GE30 (arc=3 days, H=23.6 ~65m) from ARO Westfield (April 13.17-20p3) and Tenagra II Obs. (April 13.28-30p2)
K10G25D 2010 GD25 (arc=4 days, H=26.3 ~19m) from MLS (April 13.33-34p4) and Tenagra II Obs. (April 13.37-40p3)
K10G23W 2010 GW23 (arc=4 days, H=23.9 ~56m) from Spacewatch 0.9m (April 12.22-26p3) and Tenagra II Obs. (April 13.41-42p2)
K10F81G 2010 FG81 (arc=10 days, H=23.3 ~74m) from David Tholen's team on Mauna Kea (April 5.30p3)
K10E11X 2010 EX11 (arc=37 days, H=24.2 ~49m) from ARO Westfield (April 9.12-14p3)
K10A02L 2010 AL2 (arc=6 days, H=26.7 ~15m) from Bisei Spaceguard Center (Jan. 12.58-59p4)
Observations of almost-small asteroids (21.7<H<=22.0)
K10F48L 2010 FL48 (arc=15 days, H=22.0 ~135m) from ARO Westfield (April 9.20-22p3)
Observations of other objects
K10G30H 2010 GH30 (arc=3 days, H=20.7 ~245m) from ARO Westfield (April 13.30-31p4)
K10G24A 2010 GA24 (arc=9 days, H=21.0 ~214m) from PJMSO (April 13.25p6) and ARO Westfield (April 13.31-33p4)
K10G07A 2010 GA7 (arc=7 days, H=21.3 ~186m) from ARO Westfield (April 11.22-24p5) and CSS (April 13.23-25p4)
K10G06Z 2010 GZ6 (i=45.0°, arc=6 days, H=19.5 ~426m) from ARO Westfield (April 9.19-20p3)
K10G06U 2010 GU6 (Q=4.501 AU, arc=8 days, H=20.5 ~269m) from PJMSO (April 13.29-30p7) and ARO Westfield (April 13.42-43p6)
K10G06T 2010 GT6 (arc=8 days, H=21.5 ~170m) from ARO Westfield (April 9.24-25p3) and Tenagra II Obs. (April 13.35p3)
K10G06C 2010 GC6 (arc=9 days, H=21.4 ~178m) from ARO Westfield (April 9.15-16p3) and Tenagra II Obs. (April 14.16-17p3)
K10D34B 2010 DB34 (arc=51 days, H=19.5 ~426m) from Bigmuskie Obs. (April 13.84-86p3)
K10C55H 2010 CH55 (arc=57 days, H=19.8 ~371m) from ARO Westfield (April 13.12-16p2 at V=22.3-4)
K10C44M 2010 CM44 (arc=59 days, H=19.3 ~467m) from University Hills Obs. (April 13.34-37p5)
K09U18V 2009 UV18 (Q=5.185 AU, arc=2 opp, H=16.0 ~2.14 km, q=1.167 AU) from PJMSO (April 13.30-31p5)
K09SA3O 2009 SO103 (arc=2 opp, H=17.4 ~1.12 km) from PJMSO (April 13.41-42p7)
K07T74O 2007 TO74 (arc=2 opp, H=19.8 ~371m) from MLS (April 10.34-36p3)
K07RD3M 2007 RM133 (arc=2 opp, H=18.2 ~776m) from CSS (April 13.26-28p4)
K04T18B 2004 TB18 (arc=3 opp, H=17.8 ~933m) from PJMSO (April 13.36p5)
K04R00K 2004 RK (arc=4 opp, H=19.3 ~467m) from CSS (April 13.26-28p4)
K03U12L 2003 UL12 (Q=5.602 AU, arc=3 opp, H=17.2 ~1.23 km) from Spacewatch 0.9m (April 10.23-27p3)
K03H42S 2003 HS42 (arc=4 opp, H=20.2 ~309m) from CSS (April 13.26-28p4)
K02AC9J 2002 AJ129 (q=0.117 AU, arc=3 opp, H=18.5 ~676m) from ARO Westfield (April 13.08-11p2 at V=22.3-5)
K01H00C 2001 HC (arc=4 opp, H=19.0 ~537m) from PJMSO (April 13.32p5)
K00L00K 2000 LK (q=0.118 AU, Q=4.241 AU, arc=2 opp, H=18.4 ~708m) from ARO Westfield (April 13.06p3)
J99T10A 1999 TA10 (arc=4 opp, H=18.0 ~851m) from LINEAR (April 13.39-44p5)
N2382 232382 2003 BT47 from LINEAR (April 13.14-18p4)
G2998 162998 2001 SK162 from LINEAR (April 13.14-18p3)
F3814 153814 2001 WN5 from LINEAR (April 13.32-38p5)
E1531 141531 2002 GB from LINEAR (April 13.31-37p5) and MLS (April 13.37-39p4)
88254 88254 2001 FM129 from LINEAR (April 13.19-23p5)
68216 68216 2001 CV26 from MLS (April 13.28-30p4)
39796 39796 1997 TD from CSS (April 13.23-25p4)
38086 38086 Beowulf (1999 JB) from Spacewatch 0.9m (April 9.13-15p3)
10165 10165 1995 BL2 from Spacewatch 0.9m (April 9.13-15p3)
04055 4055 Magellan (1985 DO2) from Kiev Comet Station (April 10.08-09p6)
03554 3554 Amun (1986 EB) from Wishing Star Obs. (April 12.03-05p3) and LINEAR (April 13.14-18p3)

Observers on 14 April '10

A total of 79 observing facilities appear in today's MPECs.

Code	Observer / observatory
`349`	Ageo Obs. in Japan, 6 in MPECs 2010-G110, 2010-G112 & 2010-G114 -- C/2010 F1, P/2010 E2, 235P, 203P, 157P, 30P
`J97`	Alginet Obs. in Spain, 7 in MPEC 2010-G114 -- C/2008 N1, C/2007 Q3-A, 118P, 81P, 74P, 30P, 29P
`H21`	Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 24 in MPECs 2010-G106 & 2010-G109 -- 2010 GZ6, 2010 GY6, 2010 GW64, 2010 GV23, 2010 GU6, 2010 GT7, 2010 GT6, 2010 GS7, 2010 GR33, 2010 GP33, 2010 GH7, 2010 GH30, 2010 GE30, 2010 GC6, 2010 GB6, 2010 GA7, 2010 GA24, 2010 FL48, 2010 EX11, 2010 EK44, 2010 CH55, 2005 YU55, 2002 AJ129, 2000 LK
`J51`	Atlante Obs. in the Canary Islands, 2 in MPEC 2010-G114 -- C/2007 Q3-A, 81P
`069`	Baldone Obs. in Latvia, 1 in MPEC 2010-G110 -- P/2010 E2
`B88`	Bigmuskie Obs. in Italy, 2 in MPEC 2010-G106 -- 2010 DB34, 2005 YU55
`300`	Bisei Spaceguard Center in Japan, 1 in MPEC 2010-G106 -- 2010 AL2
`I99`	Blanquita Obs. in Spain, 2 in MPEC 2010-G114 -- 118P, 81P
`B59`	Borken Obs. in Germany, 2 in MPEC 2010-G114 -- C/2007 Q3-A, 81P
`B96`	Brixiis Obs. in Belgium, 1 in MPEC 2010-G114 -- C/2007 Q3-A
`235`	CAST Obs. in Italy, 1 in MPEC 2010-G111 -- C/2010 E5
`B09`	Capannoli Obs. in Italy, 2 in MPEC 2010-G114 -- C/2008 N1, 149P
`B20`	Carmelita Obs. in Spain, 3 in MPEC 2010-G114 -- C/2007 Q3-A, 94P, 29P
`B53`	Casal Lumbroso Obs. in Italy, 2 in MPEC 2010-G114 -- C/2007 Q3-A, 81P
`160`	Castelmartini Obs. in Italy, 14 in MPECs 2010-G112 & 2010-G114 -- C/2010 F1, C/2010 B1, C/2009 K5, C/2008 N1, C/2008 FK75, C/2005 L3, 169P, 157P, 149P, 118P, 94P, 81P, 30P, 29P
`703`	Catalina Sky Survey (CSS) in Arizona, 9 in MPECs 2010-G106, 2010-G110, 2010-G112 & 2010-G114 -- 2010 GA7, C/2010 F1, P/2010 E2, C/2008 Q3, 2007 RM133, C/2005 L3, 2004 RK, 2003 HS42, 39796
`A77`	Chante-Perdrix Obs. in France, 4 in MPEC 2010-G114 -- C/2005 L3, 149P, 103P, 10P
`J01`	Cielo Profundo Obs. in Spain, 5 in MPECs 2010-G113 & 2010-G114 -- C/2010 F3, C/2009 K5, C/2008 Q3, 149P, 94P
`850`	Cordell-Lorenz Obs. in Tennessee, 3 in MPECs 2010-G111 & 2010-G114 -- C/2010 E5, 81P, 29P
`B50`	Corner Obs. in Germany, 1 in MPEC 2010-G114 -- 81P
`J19`	El Maestrat Obs. in Spain, 3 in MPEC 2010-G114 -- C/2009 K5, C/2008 N1, C/2007 Q3-A
`J36`	El Olivo Obs. in Spain, 4 in MPEC 2010-G114 -- C/2008 N1, 81P, 74P, 29P
`F65`	Faulkes Telescope North in Hawaii, 1 in MPEC 2010-G114 -- C/2007 Q3-A
`I11`	Gemini South Obs. in Chile, 1 in MPEC 2010-G114 -- 103P
`E94`	Gisborne Obs. in New Zealand, 3 in MPEC 2010-G114 -- C/2009 F4, C/2009 F2, 29P
`442`	Gualba Obs. in Spain, 1 in MPEC 2010-G114 -- 29P
`750`	Hobbs Obs. in Wisconsin, 1 in MPEC 2010-G106 -- 2005 YU55
`987`	Isle of Man Obs. on the Isle of Man, 2 in MPEC 2010-G114 -- C/2007 Q3-A, 29P
`G92`	Jarnac Obs. in Arizona, 1 in MPEC 2010-G114 -- 29P
`415`	Kambah Obs. in the Australian Capital Territory, 5 in MPEC 2010-G114 -- P/2010 A5, C/2009 F4, C/2009 F2, C/2007 S2, 10P
`585`	Kiev Comet Station in the Ukraine, 6 in MPECs 2010-G106, 2010-G110, 2010-G112 & 2010-G114 -- C/2010 F1, P/2010 E2, C/2008 FK75, 4055, 149P, 81P
`046`	Klet Obs. in the Czech Republic, 1 in MPEC 2010-G111 -- C/2010 E5
`C06`	Krasnoyarsk Obs. in Russia, 1 in MPEC 2010-G114 -- C/2009 K5
`704`	LINEAR in New Mexico, 11 in MPECs 2010-G106 & 2010-G114 -- 2010 FF10, 1999 TA10, 88254, 232382, 162998, 153814, 141531, 3554, 118P, 94P, 74P
`J38`	La Vara Obs. in Spain, 7 in MPEC 2010-G114 -- C/2009 Y1, C/2007 Q3-A, 203P, 118P, 81P, 30P, 29P
`J59`	Linceo Obs. in Spain, 2 in MPEC 2010-G114 -- 81P, 29P
`H01`	Magdalena Ridge Obs. (MRO) in New Mexico, 4 in MPECs 2010-G107, 2010-G108, 2010-G109 & 2010-G114 -- 2010 GX62, 2010 GW64, 2010 GW62, 103P
`B82`	Maidbronn Obs. in Germany, 2 in MPEC 2010-G114 -- C/2008 N1, 29P
`C10`	Maisoncelles Obs. in France, 5 in MPEC 2010-G114 -- C/2009 K5, C/2008 FK75, C/2007 Q3-A, C/2006 Q1, 10P
`J40`	Malaga Obs. in Spain, 1 in MPEC 2010-G114 -- C/2007 Q3-A
`A01`	Masia Cal Maciarol Modul 1 (MCM1) in Spain, 7 in MPEC 2010-G114 -- P/2010 A3, C/2005 L3, 118P, 94P, 81P, 74P, 30P
`A02`	Masia Cal Maciarol Modul 8 (MCM8) in Spain, 3 in MPEC 2010-G114 -- 94P, 81P, 29P
`232`	Masquefa Obs. in Spain, 1 in MPEC 2010-G114 -- 29P
`A06`	Mataro Obs. in Spain, 3 in MPEC 2010-G114 -- C/2007 Q3-A, 81P, 29P
`5682`	David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-G106 -- 2010 FG81
`118`	Modra Obs. in Slovakia, 1 in MPEC 2010-G114 -- C/2009 K5
`152`	Moletai Obs. in Lithuania, 1 in MPEC 2010-G110 -- P/2010 E2
`213`	Montcabre Obs. in Spain, 3 in MPEC 2010-G114 -- C/2007 Q3-A, 81P, 29P
`945`	Monte Deva Obs. in Spain, 7 in MPEC 2010-G114 -- P/2010 A5, C/2008 FK75, C/2007 Q3-A, 94P, 81P, 74P, 29P
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 7 in MPECs 2010-G106, 2010-G110, 2010-G111 & 2010-G114 -- 2010 GD25, C/2010 E5, P/2010 E2, 2007 TO74, 68216, 141531, 74P
`J47`	Nazaret Obs. in Spain, 6 in MPECs 2010-G106 & 2010-G114 -- C/2007 Q3-A, 2005 YU55, 157P, 81P, 67P, 29P
`583`	Odessa-Mayaki Obs. in the Ukraine, 4 in MPEC 2010-G114 -- C/2007 Q3-A, 94P, 81P, 30P
`B69`	Owls & Ravens Obs. in Germany, 1 in MPEC 2010-G114 -- C/2007 Q3-A
`B49`	Paus Obs. in Spain, 2 in MPECs 2010-G110 & 2010-G114 -- P/2010 E2, C/2005 L3
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 25 in MPECs 2010-G106, 2010-G110, 2010-G112 & 2010-G114 -- 2010 GU6, 2010 GA24, C/2010 F1, P/2010 E2, C/2010 B1, P/2010 A5, P/2010 A3, C/2009 Y1, 2009 UV18, C/2009 U3, 2009 SO103, C/2009 K5, C/2008 N1, C/2008 FK75, C/2007 Q3-A, C/2006 Q1, 2005 YU55, C/2005 L3, 2004 TB18, 2001 HC, 118P, 94P, 81P, 74P, 29P
`J53`	Posadas Obs. in Spain, 8 in MPEC 2010-G114 -- C/2009 Y1, C/2008 Q3, C/2008 N1, C/2007 Q3-A, C/2005 L3, 81P, 74P, 29P
`D29`	Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2010-G114 -- 74P
`H06`	RAS Obs. Mayhill in New Mexico, 4 in MPEC 2010-G114 -- P/2010 A3, C/2009 F2, C/2005 L3, 157P
D90`	Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-G106 -- 2010 GE35
`473`	Remanzacco Obs. in Italy, 5 in MPECs 2010-G110, 2010-G111, 2010-G112, 2010-G113 & 2010-G114 -- C/2010 F3, C/2010 F1, C/2010 E5, P/2010 E2, 81P
`H11`	Rodeo Obs. in New Mexico, 1 in MPEC 2010-G109 -- 2010 GW64
`C09`	Rouet Obs. in France, 1 in MPEC 2010-G114 -- C/2007 Q3-A
`H36`	Sandlot Obs. in Kansas, 2 in MPECs 2010-G106 & 2010-G109 -- 2010 GW64, 2005 YU55
`204`	Schiaparelli Obs. in Italy, 6 in MPECs 2010-G110 & 2010-G114 -- P/2010 E2, C/2007 S2, 235P, 169P, 67P, 29P
`G68`	Sierra Stars Obs. in northern California, 1 in MPEC 2010-G114 -- 94P
`691`	Spacewatch 0.9m telescope in Arizona, 6 in MPECs 2010-G106, 2010-G109 & 2010-G111 -- 2010 GW64, 2010 GW23, C/2010 E5, 2003 UL12, 38086, 10165
`291`	Spacewatch 1.8m telescope in Arizona, 4 in MPECs 2010-G110, 2010-G111, 2010-G113 & 2010-G114 -- C/2010 F3, C/2010 E5, P/2010 E2, 74P
`A71`	Stixendorf Obs. in Austria, 1 in MPEC 2010-G114 -- C/2010 B1
`926`	Tenagra II Obs. in Arizona, 10 in MPECs 2010-G106, 2010-G108 & 2010-G109 -- 2010 GX62, 2010 GW64, 2010 GW23, 2010 GV23, 2010 GT6, 2010 GP33, 2010 GJ30, 2010 GE30, 2010 GD25, 2010 GC6
`H10`	Tzec Maun Obs. Mayhill in New Mexico, 8 in MPEC 2010-G114 -- C/2010 B1, C/2009 Y1, C/2009 K5, C/2008 FK75, C/2007 Q3-A, 81P, 29P, 10P
`D96`	Tzec Maun Obs. Moorook in South Australia, 3 in MPEC 2010-G114 -- P/2010 A5, C/2009 F4, 81P
`G72`	University Hills Obs. in southern California, 1 in MPEC 2010-G106 -- 2010 CM44
`H47`	Vicksburg Obs. in Mississippi, 7 in MPEC 2010-G114 -- C/2009 K5, C/2008 N1, C/2005 L3, 94P, 81P, 74P, 29P
`B42`	Vitebsk Obs. in Belarus, 6 in MPECs 2010-G112 & 2010-G114 -- C/2010 F1, C/2008 N1, C/2008 FK75, C/2006 Q1, C/2005 L3, 149P
`C51`	WISE in Earth polar orbit, 3 in MPECs 2010-G107, 2010-G108 & 2010-G109 -- 2010 GX62, 2010 GW64, 2010 GW62
`940`	Waterlooville Obs. in England, 1 in MPEC 2010-G114 -- 29P
`I15`	Wishing Star Obs. in Rhode Island, 1 in MPEC 2010-G106 -- 3554
`367`	Yatsuka Obs. in Japan, 1 in MPEC 2010-G114 -- 29P
`J08`	Zonalunar Obs. in Spain, 2 in MPEC 2010-G114 -- C/2007 Q3-A, 10P

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

Impact Risk Monitoring on 14 April '10

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2359 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 GX62	JPL Sentry	1350	2026-2103	14	3.0e-07	-4.27	-4.75	0	JPL: "Analysis based on 11 observations spanning 3.8791 days (2010-Apr-10.57631 to 2010-Apr-14.45542)." Diameter approximately 0.293 km. from mean, weighted H=20.3.

2010 GE35	JPL Sentry	1350	2013	1	6.7e-07	-3.86	-3.86	0	JPL: "Analysis based on 27 observations spanning 1.3264 days (2010-Apr-12.3176 to 2010-Apr-13.64396)." Diameter approximately 0.092 km. from mean, weighted H=22.8.

2010 GR33	JPL Sentry	1350	R E M O V E D						JPL: Risk listing removed at 1030 UTC.
2010 GR33	NEODyS	1350	R E M O V E D						-

2010 GV23	JPL Sentry	1350	2096-2105	2	1.2e-06	-7.68	-7.87	0	JPL: "Analysis based on 55 observations spanning 4.1226 days (2010-Apr-09.21954 to 2010-Apr-13.34216)." Diameter approximately 0.009 km. from mean, weighted H=27.8.

2010 GH7	JPL Sentry	1350	2093-2110	21	8.3e-05	-5.70	-6.20	0	JPL: "Analysis based on 52 observations spanning 6.0235 days (2010-Apr-07.38604 to 2010-Apr-13.409545)." Diameter approximately 0.011 km. from mean, weighted H=27.4.

2005 YU55	JPL Sentry	2200	2066-2109	15	2.9e-06	-4.16	-4.58	0	JPL: "Analysis based on 442 observations spanning 1571.6 days (2005-Dec-24.29832 to 2010-Apr-13.88689)." Diameter approximately 0.140 km. from mean, weighted H=21.9.
2005 YU55	NEODyS	1939	2053-2109	80	4.1e-06	-4.00	-4.61	0	NEODyS: "Based on 443 optical observations (of which 2 are rejected as outliers) from 2005/12/24.299 to 2010/04/13.888."

153814 2001 WN5	JPL Sentry	2200	2133	1	5.5e-10	-6.43	-6.43	n/a	JPL: "Analysis based on 149 observations spanning 5176.0 days (1996-Feb-10.39593 to 2010-Apr-13.37656)." Diameter approximately 0.790 km. from mean, weighted H=18.2.
153814 2001 WN5	NEODyS	1939	2106-2133	5	4.43e-09	-5.50	-5.72	0	NEODyS: "Based on 153 optical observations (of which 4 are rejected as outliers) from 1996/02/10.397 to 2010/04/13.377."

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 14 April '10

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

2200	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 Grabbed MPEC 2010-G110 - Comet P/2010 E2 (Jarnac) - see above Grabbed MPEC 2010-G111 - Comet C/2010 E5 (Scotti) - see above Grabbed MPEC 2010-G112 - Comet C/2010 F1 (Boattini) - see above Grabbed MPEC 2010-G113 - Comet C/2010 F3 (Scotti) - see above Grabbed MPEC 2010-G114 - Observations of Comets - see above
1939	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
1502	Grabbed MPEC 2010-G109 - 2010 GW64 - see above
1350	Noted that JPL Sentry has updated its 2010 GE35 risk assessment - see above Noted that JPL Sentry has updated its 2010 GH7 risk assessment - see above Noted that JPL Sentry has removed 2010 GR33 as an impact risk - see above Noted that NEODyS has removed 2010 GR33 as an impact risk - see above Noted that JPL Sentry has updated its 2010 GV23 risk assessment - see above Noted that JPL Sentry has posted 2010 GX62 as an impact risk - see above Grabbed MPEC 2010-G106 - Daily Orbit Update - see above Grabbed MPEC 2010-G107 - 2010 GW62 - see above Grabbed MPEC 2010-G108 - 2010 GX62 - see above

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