2010-05-24 Tracking News

Contents on 24 May '10

Radar Astrometry -- one object
IAU Minor Planet Center
- NEOCP Activity -- seven listings: 3 new, 4 updated
- New MPECs -- nine MPECs
Observers -- 74 observing facilities
Impact Risk Monitoring -- five objects
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Of 322 risk-listed objects, 30 have had news in the last month. Updated at 1448 UTC.
Earth's Busy Neighborhood Traffic Report
Nine objects are known to be within ten LD of Earth today. Updated at 1633 UTC.
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.

Radar Astrometry on 24 May '10

Radar observation of one object

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

Data update noted at 2258 UTC when the database was dated 24 May

2010 JN71 from Arecibo (May 24.82 velocity & 24.86 range)

NEOCP Activity on 24 May '10

The MPC's NEO Confirmation Page has 7 listings: 3 new, 4 updated

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

New MPECs on 24 May '10

Minor Planet Electronic Circulars

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

MPEC 2010-K47 time-stamped "06:12 UT" - Daily Orbit Update - see below
MPEC 2010-K48 time-stamped "15:41 UT" - Comet C/2010 G2 (Hill) - see below
MPEC 2010-K49 time-stamped "15:46 UT" - Comet C/2010 G3 (WISE) - see below
MPEC 2010-K50 time-stamped "15:50 UT" - Comet P/2010 H4 (Scotti) - see below
MPEC 2010-K51 time-stamped "15:59 UT" - Comet C/2010 J1 (Boattini) - see below
MPEC 2010-K52 time-stamped "16:08 UT" - Comet C/2010 J4 (WISE) - see below
MPEC 2010-K53 time-stamped "16:38 UT" - Comet P/2010 J5 (McNaught) - see below
MPEC 2010-K54 time-stamped "17:21 UT" - Observations of Comets - see below
MPEC 2010-K55 time-stamped "23:19 UT" - 2010 KV39

MPEC 2010-K55 - "23:19 UT" - 2010 KV39

K10K39V 2010 KV39 (small asteroid, Earth MOID=0.3 LD, H=26.7 ~15m) was discovered at 0854 UT on 24 May by the Catalina Sky Survey (CSS), which observed it at May 24.37-45p10. The discovery was confirmed by Schiaparelli Obs. (May 24.87-88p2), Great Shefford Obs. (May 24.90-93p4), and Wildberg Obs. (May 24.91-94p4). This object is now within ten lunar distances (LD) of Earth, reaching 0.6 LD on 26 May (INTRUDER).

MPEC 2010-K54 - "17:21 UT" - Observations of Comets

PK10J030 P/2010 J3 (McMillan) from Moriyama Obs. (May 17.62-63p2), Tzec Maun Obs. Mayhill (May 18.37-41p2, 20.40-41p4, 21.37-39p2 & 22.42-43p5), roving observer (May 18.94-95p8), Santa Maria de Montmagastrell Obs. (May 19.92-94p3), Cielo Profundo Obs. (May 19.94-95p3 & 21.98-00p3), La Vara Obs. (May 19.00-01p3), the Spacewatch 0.9m telescope (May 20.21-25p3 & 23.29-33p3), Pla D'Arguines Obs. (May 20.94-97p4), Yatsuka Obs. (May 21.56-57p2), Sendai Obs. (May 21.58p4), Hiratsuka Obs. (May 21.59-60p3), Nazaret Obs. (May 22.04-06p3), Libbiano Obs. (May 22.91p3), and Atlante Obs. (May 23.00-04p3)
PK10H020 P/2010 H2 (Vales) from Geisei Obs. (May 11.54p2), Moriyama Obs. (May 17.56-57p2), Olmen Obs. (May 18.89-91p2 & 19.95-97p3), SPAG Monfrague Obs. (May 18.90-91p2 & 19.93-95p3), Tzec Maun Obs. Mayhill (May 19.30p2), Jaen Obs. (May 19.86-88p2), Linceo Obs. (May 19.87-88p3 & 21.87-90p3), La Vara Obs. (May 19.92-93p3, 20.95p3 & 21.95-96p3), Monte Deva Obs. (May 19.94-97p5, 20.93-94p5 & 22.98-01p5), Brixiis Obs. (May 19.94-97p9, 20.94-96p8, 21.94-96p8, 22.94-97p7 & 23.94-97p7), Malaga Obs. (May 20.08-09p3), Montcabre Obs. (May 20.89-94p3 & 22.90-92p3), Gieres Obs. (May 20.91-92p3), Sendai Obs. (May 21.48p5), Kurihara Obs. (May 21.49p2), Yatsuka Obs. (May 21.53-54p2), Moletai Obs. (May 21.85p5), Como Obs. (May 21.88-91p2 & 22.87-89p2), Cielo Profundo Obs. (May 21.89-94p3), Mataro Obs. (May 21.91-93p3), Atlante Obs. (May 21.93-97p3 & 22.92-94p3), Petit Jean Mtn. South Obs. (PJMSO) (May 22.25-26p3), and Los Molinos Obs. (May 23.18-21p5)
PK10E020 P/2010 E2 (Jarnac) from Geisei Obs. (May 11.55p1), Pla D'Arguines Obs. (May 15.84-86p3), and CSS (May 20.22-25p4)
PK10A050 P/2010 A5 (LINEAR) from Geisei Obs. (May 11.66p1), Gisborne Obs. (May 17.44p1 & 17.51p1), Auckland Obs. (May 17.46-47p3), Linceo Obs. (May 20.97-00p3), Monte Deva Obs. (May 21.07-08p5), Kurihara Obs. (May 21.54p2), Sendai Obs. (May 21.59p3), Hiratsuka Obs. (May 21.61-62p2), Faulkes Telescope South (May 21.63-64p14), and PJMSO (May 22.34p5)
CK09Y010 C/2009 Y1 (Catalina) from La Vara Obs. (May 19.97p3, 20.91-93p3 & 23.95-96p3)
CK09U89G C/2009 UG89 (Lemmon) from Pla D'Arguines Obs. (May 22.12-13p3) and the Mt. Lemmon Survey (MLS) (May 24.43-44p3)
CK09R010 C/2009 R1 (McNaught) from roving observer (May 19.03-07p10), RAS Obs. Mayhill (May 19.45p2, 20.43-44p3, 22.46p2 & 24.44p3), Nagano Obs. (May 20.73-74p4), Maisoncelles Obs. (May 21.08-10p4), Montcabre Obs. (May 21.13-14p3 & 23.13p3), Sendai Obs. (May 21.74p4), Kurihara Obs. (May 21.74p3), Ageo Obs. (May 21.76-77p3), Olmen Obs. (May 22.05-08p4 & 24.05-08p4), Casal Lumbroso Obs. (May 22.07-09p20 & 23.09p10), Tzec Maun Obs. Mayhill (May 22.44-45p8), and Cielo Profundo Obs. (May 23.14-15p3)
CK09K050 C/2009 K5 (McNaught) from Geisei Obs. (May 11.58p1), Hobbs Obs. (May 15.18-22p3), Tzec Maun Obs. Mayhill (May 18.39p1, 18.43-46p2, 20.39-42p3 & 22.39-41p3), Olmen Obs. (May 18.96-02p4, 22.00-03p3 & 24.01-05p4), roving observer (May 18.97-99p12), Brixiis Obs. (May 20.04-06p11, 21.03-06p10, 22.03-06p10, 23.04-06p10 & 24.04-06p11), Rouet Obs. (May 21.08-10p6), Sendai Obs. (May 21.57p2), Ageo Obs. (May 21.78p2), El Maestrat Obs. (May 21.87-91p10), Altamira Obs. (May 22.87-89p3), Chante-Perdrix Obs. (May 22.89p3 & 23.85-86p3), Owls & Ravens Obs. (May 23.90-92p2), and RAS Mayhill (May 24.43p2)
CK09K020 C/2009 K2 (Catalina) from Castelmartini Obs. (May 1.12-13p3), CSS (May 17.41-42p4), and Cielo Profundo Obs. (May 23.11-13p3)
CK09F040 C/2009 F4 (McNaught) from Gisborne Obs. (May 17.44p1, 17.51p1, 17.67p1, 22.35p1 & 22.40-41p2) and Auckland Obs. (May 17.53-54p3)
CK09F020 C/2009 F2 (McNaught) from Kambah Obs. (May 15.60-61p2) and Auckland Obs. (May 17.50p2)
CK08F75K C/2008 FK75 (Lemmon-Siding Spring) from Hobbs Obs. (May 15.17-21p3), Vicksburg Obs. (May 19.34-38p3, 20.34-37p3 & 23.36-37p4), RAS Mayhill (May 19.34-35p2), La Vara Obs. (May 20.01-02p3 & 21.98-00p3), Monte Deva Obs. (May 20.06-07p3, 21.01-03p5 & 23.08-09p5), Brixiis Obs. (May 20.06-09p8, 21.06-08p6, 22.06-08p6 & 24.06-08p5), Rouet Obs. (May 20.98-99p3), Maisoncelles Obs. (May 21.03-05p3), Sendai Obs. (May 21.62p4), Hiratsuka Obs. (May 21.65p3), Blanquita Obs. (May 21.92-94p3), Bagnoud Obs. (May 21.97p4), Carmelita Obs. (May 21.97-98p3), Cielo Profundo Obs. (May 22.02-05p3 & 23.01-04p3), Atlante Obs. (May 22.02-04p3), Montcabre Obs. (May 23.07-08p3), and Chante-Perdrix Obs. (May 23.87-88p3)
CK07V53O C/2007 VO53 (Spacewatch) from Rouet Obs. (May 21.05-06p2) and Cielo Profundo Obs. (May 23.05-08p3)
CK07Q03a C/2007 Q3-A (Siding Spring A) from Moriyama Obs. (May 17.60p2), Anysllum Obs. (May 18.02-07p5), Tzec Maun Obs. Mayhill (May 18.43-45p2, 20.39-41p2, 21.38-39p2, 22.39-41p2, 24.32-33p2 & 24.41p1), Olmen Obs. (May 19.03-05p2), RAS Mayhill (May 19.36p2), Jaen Obs. (May 19.86-91p3), Brixiis Obs. (May 19.97-00p7, 20.97-00p8, 21.97-00p8 & 22.98-00p7), La Vara Obs. (May 20.03-04p3, 22.99p3 & 23.00-01p3), Monte Deva Obs. (May 20.00p5 & 23.06-07p5), Gieres Obs. (May 21.00-05p3), Yatsuka Obs. (May 21.54p3), Sendai Obs. (May 21.56-57p4), Cielo Profundo Obs. (May 21.94-98p3), Carmelita Obs. (May 21.95-96p3), and Atlante Obs. (May 22.86-89p3)
CK07B020 C/2007 B2 (Skiff) from WISE (May 19.48p1, 19.61p1, 19.68p1, 19.88p1 & 20.01p1)
CK06W030 C/2006 W3 (Christensen) from Ageo Obs. (May 17.74p2), Auckland Obs. (May 19.57p3), and Kurihara Obs. (May 21.73p3)
CK06S030 C/2006 S3 (LONEOS) from Vicksburg Obs. (May 21.39-40p2, 22.42-43p2 & 23.39-41p4)
CK06Q010 C/2006 Q1 (McNaught) from Rouet Obs. (May 21.02-03p2), Monte Deva Obs. (May 21.03-06p5), Maisoncelles Obs. (May 21.05-06p2), and Montcabre Obs. (May 23.11p2)
CK05L030 C/2005 L3 (McNaught) from Monte Deva Obs. (May 19.90-93p5, 20.90-92p5, 21.00-02p5 & 22.95-97p5), RAS Mayhill (May 20.19p2), and Sendai Obs. (May 21.55p4)
0094P 94P/Russell 4 from WISE (May 19.25p1, 19.71p1, 19.97p1, 20.04p1 & 20.24p1)
0081P 81P/Wild 2 from Hobbs Obs. (May 15.18p1 & 15.23p1), Moriyama Obs. (May 17.58-59p2), Anysllum Obs. (May 18.04-07p4), roving observer (May 18.93-94p8), Jaen Obs. (May 19.87-91p3), Linceo Obs. (May 19.89-91p3, 20.89-91p3 & 21.92-94p3), Brixiis Obs. (May 19.91-94p8, 20.91-93p7, 21.91-93p6, 22.92-94p6 & 23.92-94p6), Cielo Profundo Obs. (May 19.92-93p3), La Vara Obs. (May 19.98-99p3 & 20.93-94p3), Monte Deva Obs. (May 20.03-04p5, 20.98-99p5 & 23.05-06p5), Malaga Obs. (May 20.09-11p3), Sant Celoni Obs. (May 20.85-88p3), Gieres Obs. (May 20.95-99p3), Kurihara Obs. (May 21.51-52p3), Yatsuka Obs. (May 21.53p3), Sendai Obs. (May 21.54p4), Borken Obs. (May 21.89-91p7), Carmelita Obs. (May 21.90-91p3), Olmen Obs. (May 21.91-93p3), Mataro Obs. (May 21.95-97p3), PJMSO (May 22.24-25p6), Tzec Maun Obs. Mayhill (May 22.36-38p2, 24.26p1 & 24.31p1), and RAS Mayhill (May 24.24p2)
0074P 74P/Smirnova-Chernykh from Cielo Profundo Obs. (May 19.89-91p3), La Vara Obs. (May 19.94-95p3, 20.97-98p3, 21.92-93p3 & 22.94p3), Monte Deva Obs. (May 19.99-02p5, 20.95-97p5, 22.06-07p4 & 23.02-04p5), Pear Tree Obs. (May 20.08-12p3), Sendai Obs. (May 21.49p3), Kurihara Obs. (May 21.50-51p2), Carmelita Obs. (May 21.88-90p3), and Montcabre Obs. (May 22.88-90p3)
0065P 65P/Gunn from RAS Mayhill (May 19.42p2) and Sendai Obs. (May 21.72-73p4)
0030P 30P/Reinmuth 1 from Monte Deva Obs. (May 13.88-89p3) and CSS (May 21.16-17p4)
0029P 29P/Schwassmann-Wachmann 1 from Remanzacco Obs. (April 19.82p2), Geisei Obs. (May 11.52p1), Moriyama Obs. (May 17.46-47p2), La Vara Obs. (May 19.91p3, 21.89-90p3, 22.91-92p2 & 23.90-91p3), Malaga Obs. (May 19.96p3), Carmelita Obs. (May 21.85-86p3), Mataro Obs. (May 21.86-89p3), Farm Cove Obs. (May 22.28-30p3), Montcabre Obs. (May 22.84-87p3), and Monte Deva Obs. (May 22.89-91p5)
0010P 10P/Tempel 2 from Ageo Obs. (May 17.73p2), Vicksburg Obs. (May 19.40-41p3 & 22.41p5), Tzec Maun Obs. Mayhill (May 20.40-42p3, 22.38-41p2 & 24.40-44p3), Monte Deva Obs. (May 21.09-10p5 & 23.10-11p5), Kurihara Obs. (May 21.71-72p3), Olmen Obs. (May 22.06-08p3 & 24.08-09p3), Nazaret Obs. (May 22.14-15p3), and Los Molinos Obs. (May 23.28-29p4)
0009P 9P/Tempel 1 from Chante-Perdrix Obs. (May 22.87p2) and La Vara Obs. (May 23.92-94p2)

MPEC 2010-K53 - "16:38 UT" - Comet P/2010 J5 (McNaught)

PK10J050 P/2010 J5 (McNaught) (q=3.749 AU, Q=4.466 AU, TP=2009 Dec. 22.054 TT) from Ageo Obs. (May 17.69-70p2), Tzec Maun Obs. Moorook (May 17.70-73p2), La Sagra Obs. (May 18.95-98p3), Tzec Maun Obs. Mayhill (May 20.39-40p4), Pla D'Arguines Obs. (May 20.98-99p3), the Siding Spring Survey (SSS) (May 21.62p2 & 22.70p1), Libbiano Obs. (May 22.97p3), and RAS Mayhill (May 24.41-42p3)

MPEC 2010-K52 - "16:08 UT" - Comet C/2010 J4 (WISE)

CK10J040 C/2010 J4 (WISE) (i=162.3°, q=1.086 AU, TP=2010 May 3.171 TT) from Ageo Obs. (May 16.53p2), Moriyama Obs. (May 17.53-54p2), RAS Mayhill (May 18.34-35p2, 20.20-22p3 & 21.21p3), roving observer (May 18.88-89p4), and CSS (May 21.19-21p4)

MPEC 2010-K51 - "15:59 UT" - Comet C/2010 J1 (Boattini)

CK10J010 C/2010 J1 (Boattini) (i=134.4°, q=1.696 AU, Q=72.000 AU, TP=2010 Feb. 4.832 TT) from Geisei Obs. (May 11.57p1), Moriyama Obs. (May 17.64-65p2), Cielo Profundo Obs. (May 19.96-97p2 & 22.97-99p3), Tzec Maun Obs. Mayhill (May 20.42-43p4 & 21.37-38p2), Sant Celoni Obs. (May 20.92-94p3), Montcabre Obs. (May 20.98p3), Brixiis Obs. (May 21.00-03p10, 22.00-03p5, 23.01-03p7 & 24.01-03p6), Pla D'Arguines Obs. (May 21.07p3), Yatsuka Obs. (May 21.55-56p3), Sendai Obs. (May 21.58-59p4), Ageo Obs. (May 21.73-74p2), Olmen Obs. (May 21.95-99p4), Mataro Obs. (May 21.97-98p3), Atlante Obs. (May 21.98-00p3 & 22.95-98p3), the SZTE Asteroid Program (May 22.04-05p3), PJMSO (May 22.30-31p7), Blanquita Obs. (May 22.89-90p3), Libbiano Obs. (May 22.92-93p3), RAS Mayhill (May 24.22-23p3), and CSS (May 24.24-27p4)

MPEC 2010-K50 - "15:50 UT" - Comet P/2010 H4 (Scotti)

PK10H040 P/2010 H4 (Scotti) (q=4.819 AU, Q=8.437 AU, TP=2010 June 27.3969 TT) from MLS (May 9.26-29p4), Mt. John Obs. (May 9.59-62p5), and the Spacewatch 1.8m telescope (May 21.30-31p3)

MPEC 2010-K49 - "15:46 UT" - Comet C/2010 G3 (WISE)

CK10G030 C/2010 G3 (WISE) (i=108.3°, q=4.908 AU, TP=2010 Apr. 10.2567 TT) from Montcabre Obs. (May 19.12-14p3), CSS (May 20.36-37p4), and Libbiano Obs. (May 22.99-00p3)

MPEC 2010-K48 - "15:41 UT" - Comet C/2010 G2 (Hill)

CK10G020 C/2010 G2 (Hill) (i=103.7°, q=1.981 AU, Q=190.494 AU, TP=2011 Sept. 2.0458 TT) from Montcabre Obs. (May 21.01-03p3), Pla D'Arguines Obs. (May 21.09-10p3), Sendai Obs. (May 21.61-62p3), PJMSO (May 22.33-34p7), and Libbiano Obs. (May 22.94-96p4)

<< DOU on 24 May '10 >> MPEC 2010-K47 - "06:12 UT" - Daily Orbit Update

Observations of risk-listed objects
K10K10Q 2010 KQ10 (Q=4.117 AU, arc=3 days, H=21.2 ~195m) from Spacewatch 1.8m (May 23.45-46p2)
K10J88E 2010 JE88 (arc=9 days, H=21.5 ~170m) from Astronomical Research Obs. Westfield (May 23.12-14p3) and Spacewatch 1.8m (May 23.29-30p3)
Observations of recently (no longer) risk-listed objects
K10K00Q 2010 KQ (small asteroid, arc=8 days, H=28.3 ~7m) from SSS (May 23.56p2) and Great Shefford Obs. (May 23.97-04p4)
K10J87F 2010 JF87 (Q=4.110 AU, arc=8 days, H=19.1 ~513m) from WISE (May 11.65p1)
K10J71N 2010 JN71 (arc=12 days, H=21.4 ~178m) from ARO Westfield (May 23.09-10p4)
K10J41M 2010 JM41 (arc=13 days, H=20.9 ~224m) from ARO Westfield (May 23.25-27p3)
K10J33L 2010 JL33 (Q=4.689 AU, arc=17 days, H=17.7 ~977m) from Desert Moon Obs. (May 23.22-28p3)
Observations of small asteroids (H>22.0)
K10K37K 2010 KK37 (arc=1 day, H=25.6 ~26m) from MLS (May 23.27-29p4)
K10K10P 2010 KP10 (arc=3 days, H=23.5 ~68m) from ARO Westfield (May 23.25p4) and Spacewatch 1.8m (May 23.31-32p3)
K10K10O 2010 KO10 (arc=3 days, H=26.8 ~15m) from Churchstoke Obs. (May 22.91-92p2)
K10K08B 2010 KB8 (q=0.238 AU, arc=4 days, H=24.0 ~54m) from ARO Westfield (May 23.16-17p6)
K10J77L 2010 JL77 (arc=11 days, H=24.2 ~49m) from ARO Westfield (May 23.33-34p4)
K10J71O 2010 JO71 (arc=12 days, H=23.9 ~56m) from CSS (May 23.34-35p4)
K10G34A 2010 GA34 (arc=41 days, H=22.3 ~117m) from ARO Westfield (May 23.17-18p5)
Observations of almost-small asteroids (21.7<H<=22.0)
K10K00D 2010 KD (arc=7 days, H=21.9 ~141m) from ARO Westfield (May 23.23-24p3)
K10F81C 2010 FC81 (Q=4.340 AU, arc=54 days, H=21.8 ~148m) from CSS (May 23.24-25p4) and Mirasteilas Obs. (May 24.06-07p5)
Observations of other objects
K10K08A 2010 KA8 from Lenomiya Obs. (May 23.24-26p4)
K10J88H 2010 JH88 (Q=4.111 AU, arc=9 days, H=18.1 ~812m) from ARO Westfield (May 23.14-15p4) and Desert Moon Obs. (May 23.15-18p3)
K10J88G 2010 JG88 (arc=9 days, H=19.4 ~446m) from ARO Westfield (May 23.15p4)
K10J87H 2010 JH87 (i=43.7°, arc=13 days, H=19.7 ~389m) from ARO Westfield (May 23.29-32p3)
K10J41K 2010 JK41 (Q=4.337 AU, arc=13 days, H=20.0 ~339m) from ARO Westfield (May 23.16-17p5) and CSS (May 23.17-19p4)
K10J34V 2010 JV34 (arc=15 days, H=20.9 ~224m) from ARO Westfield (May 23.09-10p4 & 23.20-21p7), Lenomiya Obs. (May 23.16-17p4), and Mirasteilas Obs. (May 24.05p3)
K10J00F 2010 JF (i=43.8°, arc=19 days, H=19.3 ~467m) from ARO Westfield (May 23.19p3)
K10H33D 2010 HD33 (arc=33 days, H=18.2 ~776m) from Spacewatch 1.8m (May 23.23-24p3)
K10G30H 2010 GH30 (arc=43 days, H=20.9 ~224m) from ARO Westfield (May 23.18-22p4)
K10G07T 2010 GT7 (Q=4.569 AU, arc=46 days, H=20.2 ~309m) from Spacewatch 1.8m (May 23.35-36p3)
K10G07R 2010 GR7 (q=0.281 AU, arc=48 days, H=18.4 ~708m) from Mirasteilas Obs. (May 23.89-91p3)
K10F92O 2010 FO92 (arc=64 days, H=19.9 ~355m) from ARO Westfield (May 23.12-13p3)
K10ED5C 2010 EC135 (arc=72 days, H=19.9 ~355m) from ARO Westfield (May 23.16p3)
K10D34B 2010 DB34 (arc=91 days, H=19.5 ~426m) from ARO Westfield (May 23.23-24p4)
K10C18L 2010 CL18 (Q=4.186 AU, arc=99 days, H=18.4 ~708m) from CSS (May 23.34-35p4)
K09V24O 2009 VO24 (arc=2 opp, H=19.7 ~389m) from ARO Westfield (May 23.34-35p4)
K09U18V 2009 UV18 (Q=5.185 AU, arc=2 opp, H=16.0 ~2.14 km, q=1.167 AU) from ARO Westfield (May 23.28-29p4)
K08J19V 2008 JV19 (arc=3 opp, H=20.7 ~245m) from ARO Westfield (May 23.30p3)
K04T18B 2004 TB18 (arc=3 opp, H=17.8 ~933m) from Mirasteilas Obs. (May 23.86-88p3)
K03K18R 2003 KR18 (arc=4 opp, H=17.9 ~891m) from Mirasteilas Obs. (May 23.95-97p3)
N7442 237442 1999 TA10 from Moriyama Obs. (May 17.64-65p2)
F3842 153842 2001 XT30 from Desert Moon Obs. (May 23.44-46p3)
52750 52750 1998 KK17 from MLS (May 23.27-29p4)

Observers on 24 May '10

A total of 74 observing facilities appear in today's MPECs.

Code	Observer / observatory
`349`	Ageo Obs. in Japan, 7 in MPECs 2010-K51, 2010-K52, 2010-K53 & 2010-K54 -- P/2010 J5, C/2010 J4, C/2010 J1, C/2009 R1, C/2009 K5, C/2006 W3, 10P
`J24`	Altamira Obs. in the Canary Islands, 1 in MPEC 2010-K54 -- C/2009 K5
`C07`	Anysllum Obs. in Spain, 2 in MPEC 2010-K54 -- C/2007 Q3-A, 81P
`251`	Arecibo in Puerto Rico, 1 in radar -- 2010 JN71
`H21`	Astronomical Research Obs. Westfield in Illinois, 21 in MPEC 2010-K47 -- 2010 KP10, 2010 KD, 2010 KB8, 2010 JV34, 2010 JN71, 2010 JM41, 2010 JL77, 2010 JK41, 2010 JH88, 2010 JH87, 2010 JG88, 2010 JF, 2010 JE88, 2010 GH30, 2010 GA34, 2010 FO92, 2010 EC135, 2010 DB34, 2009 VO24, 2009 UV18, 2008 JV19
`J51`	Atlante Obs. in the Canary Islands, 5 in MPECs 2010-K51 & 2010-K54 -- P/2010 J3, C/2010 J1, P/2010 H2, C/2008 FK75, C/2007 Q3-A
`467`	Auckland Obs. in New Zealand, 4 in MPEC 2010-K54 -- P/2010 A5, C/2009 F4, C/2009 F2, C/2006 W3
`175`	Bagnoud Obs. in France, 1 in MPEC 2010-K54 -- C/2008 FK75
`I99`	Blanquita Obs. in Spain, 2 in MPECs 2010-K51 & 2010-K54 -- C/2010 J1, C/2008 FK75
`B59`	Borken Obs. in Germany, 1 in MPEC 2010-K54 -- 81P
`B96`	Brixiis Obs. in Belgium, 6 in MPECs 2010-K51 & 2010-K54 -- C/2010 J1, P/2010 H2, C/2009 K5, C/2008 FK75, C/2007 Q3-A, 81P
`B20`	Carmelita Obs. in Spain, 5 in MPEC 2010-K54 -- C/2008 FK75, C/2007 Q3-A, 81P, 74P, 29P
`B53`	Casal Lumbroso Obs. in Italy, 1 in MPEC 2010-K54 -- C/2009 R1
`160`	Castelmartini Obs. in Italy, 1 in MPEC 2010-K54 -- C/2009 K2
`703`	Catalina Sky Survey (CSS) in Arizona, 11 in MPECs 2010-K47, 2010-K49, 2010-K51, 2010-K52, 2010-K54 & 2010-K55 -- 2010 KV39, 2010 JO71, 2010 JK41, C/2010 J4, C/2010 J1, C/2010 G3, 2010 FC81, P/2010 E2, 2010 CL18, C/2009 K2, 30P
`A77`	Chante-Perdrix Obs. in France, 3 in MPEC 2010-K54 -- C/2009 K5, C/2008 FK75, 9P
`J18`	Churchstoke Obs. in Wales, 1 in MPEC 2010-K47 -- 2010 KO10
`J01`	Cielo Profundo Obs. in Spain, 10 in MPECs 2010-K51 & 2010-K54 -- P/2010 J3, C/2010 J1, P/2010 H2, C/2009 R1, C/2009 K2, C/2008 FK75, C/2007 VO53, C/2007 Q3-A, 81P, 74P
`C13`	Como Obs. in Italy, 1 in MPEC 2010-K54 -- P/2010 H2
`448`	Desert Moon Obs. in New Mexico, 3 in MPEC 2010-K47 -- 2010 JL33, 2010 JH88, 153842
`J19`	El Maestrat Obs. in Spain, 1 in MPEC 2010-K54 -- C/2009 K5
`E85`	Farm Cove Obs. in New Zealand, 1 in MPEC 2010-K54 -- 29P
`E10`	Faulkes Telescope South in New South Wales, 1 in MPEC 2010-K54 -- P/2010 A5
`372`	Geisei Obs. in Japan, 6 in MPECs 2010-K51 & 2010-K54 -- C/2010 J1, P/2010 H2, P/2010 E2, P/2010 A5, C/2009 K5, 29P
`B83`	Gieres Obs. in France, 3 in MPEC 2010-K54 -- P/2010 H2, C/2007 Q3-A, 81P
`E94`	Gisborne Obs. in New Zealand, 2 in MPEC 2010-K54 -- P/2010 A5, C/2009 F4
`J95`	Great Shefford Obs. in England, 2 in MPECs 2010-K47 & 2010-K55 -- 2010 KV39, 2010 KQ
`D88`	Hiratsuka Obs. in Japan, 3 in MPEC 2010-K54 -- P/2010 J3, P/2010 A5, C/2008 FK75
`750`	Hobbs Obs. in Wisconsin, 3 in MPEC 2010-K54 -- C/2009 K5, C/2008 FK75, 81P
`J28`	Jaen Obs. in Spain, 3 in MPEC 2010-K54 -- P/2010 H2, C/2007 Q3-A, 81P
`415`	Kambah Obs. in the Australian Capital Territory, 1 in MPEC 2010-K54 -- C/2009 F2
`D95`	Kurihara Obs. in Japan, 7 in MPEC 2010-K54 -- P/2010 H2, P/2010 A5, C/2009 R1, C/2006 W3, 81P, 74P, 10P
`J75`	La Sagra Obs. in Spain, 1 in MPEC 2010-K53 -- P/2010 J5
`J38`	La Vara Obs. in Spain, 9 in MPEC 2010-K54 -- P/2010 J3, P/2010 H2, C/2009 Y1, C/2008 FK75, C/2007 Q3-A, 81P, 74P, 29P, 9P
`H13`	Lenomiya Obs. in Arizona, 2 in MPEC 2010-K47 -- 2010 KA8, 2010 JV34
`B33`	Libbiano Obs. in Italy, 5 in MPECs 2010-K48, 2010-K49, 2010-K51, 2010-K53 & 2010-K54 -- P/2010 J5, P/2010 J3, C/2010 J1, C/2010 G3, C/2010 G2
`J59`	Linceo Obs. in Spain, 3 in MPEC 2010-K54 -- P/2010 H2, P/2010 A5, 81P
`844`	Los Molinos Obs. in Uruguay, 2 in MPEC 2010-K54 -- P/2010 H2, 10P
`C10`	Maisoncelles Obs. in France, 3 in MPEC 2010-K54 -- C/2009 R1, C/2008 FK75, C/2006 Q1
`J40`	Malaga Obs. in Spain, 3 in MPEC 2010-K54 -- P/2010 H2, 81P, 29P
`A06`	Mataro Obs. in Spain, 4 in MPECs 2010-K51 & 2010-K54 -- C/2010 J1, P/2010 H2, 81P, 29P
`B67`	Mirasteilas Obs. in Switzerland, 5 in MPEC 2010-K47 -- 2010 JV34, 2010 GR7, 2010 FC81, 2004 TB18, 2003 KR18
`152`	Moletai Obs. in Lithuania, 1 in MPEC 2010-K54 -- P/2010 H2
`213`	Montcabre Obs. in Spain, 9 in MPECs 2010-K48, 2010-K49, 2010-K51 & 2010-K54 -- C/2010 J1, P/2010 H2, C/2010 G3, C/2010 G2, C/2009 R1, C/2008 FK75, C/2006 Q1, 74P, 29P
`945`	Monte Deva Obs. in Spain, 11 in MPEC 2010-K54 -- P/2010 H2, P/2010 A5, C/2008 FK75, C/2007 Q3-A, C/2006 Q1, C/2005 L3, 81P, 74P, 30P, 29P, 10P
`900`	Moriyama Obs. in Japan, 8 in MPECs 2010-K47, 2010-K51, 2010-K52 & 2010-K54 -- C/2010 J4, P/2010 J3, C/2010 J1, P/2010 H2, C/2007 Q3-A, 237442, 81P, 29P
`474`	Mt. John Obs. in New Zealand, 1 in MPEC 2010-K50 -- P/2010 H4
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 4 in MPECs 2010-K47, 2010-K50 & 2010-K54 -- 2010 KK37, P/2010 H4, C/2009 UG89, 52750
`D81`	Nagano Obs. in Japan, 1 in MPEC 2010-K54 -- C/2009 R1
`J47`	Nazaret Obs. in Spain, 2 in MPEC 2010-K54 -- P/2010 J3, 10P
`C23`	Olmen Obs. in Belgium, 7 in MPECs 2010-K51 & 2010-K54 -- C/2010 J1, P/2010 H2, C/2009 R1, C/2009 K5, C/2007 Q3-A, 81P, 10P
`B69`	Owls & Ravens Obs. in Germany, 1 in MPEC 2010-K54 -- C/2009 K5
`H23`	Pear Tree Obs. in Florida, 1 in MPEC 2010-K54 -- 74P
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 5 in MPECs 2010-K48, 2010-K51 & 2010-K54 -- C/2010 J1, P/2010 H2, C/2010 G2, P/2010 A5, 81P
`941`	Pla D'Arguines Obs. in Spain, 6 in MPECs 2010-K48, 2010-K51, 2010-K53 & 2010-K54 -- P/2010 J5, P/2010 J3, C/2010 J1, C/2010 G2, P/2010 E2, C/2009 UG89
`H06`	RAS Obs. Mayhill in New Mexico, 10 in MPECs 2010-K51, 2010-K52, 2010-K53 & 2010-K54 -- P/2010 J5, C/2010 J4, C/2010 J1, C/2009 R1, C/2009 K5, C/2008 FK75, C/2007 Q3-A, C/2005 L3, 81P, 65P
`473`	Remanzacco Obs. in Italy, 1 in MPEC 2010-K54 -- 29P
`C09`	Rouet Obs. in France, 4 in MPEC 2010-K54 -- C/2009 K5, C/2008 FK75, C/2007 VO53, C/2006 Q1
`J07`	SPAG Monfrague Obs. in Spain, 1 in MPEC 2010-K54 -- P/2010 H2
`461`	SZTE Asteroid Program in Hungary, 1 in MPEC 2010-K51 -- C/2010 J1
`B70`	Sant Celoni Obs. in Spain, 2 in MPECs 2010-K51 & 2010-K54 -- C/2010 J1, 81P
`B74`	Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2010-K54 -- P/2010 J3
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2010-K55 -- 2010 KV39
`D93`	Sendai Obs. in Japan, 13 in MPECs 2010-K48, 2010-K51 & 2010-K54 -- P/2010 J3, C/2010 J1, P/2010 H2, C/2010 G2, P/2010 A5, C/2009 R1, C/2009 K5, C/2008 FK75, C/2007 Q3-A, C/2005 L3, 81P, 74P, 65P
`E12`	Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2010-K47 & 2010-K53 -- 2010 KQ, P/2010 J5
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2010-K54 -- P/2010 J3
`291`	Spacewatch 1.8m telescope in Arizona, 6 in MPECs 2010-K47 & 2010-K50 -- 2010 KQ10, 2010 KP10, 2010 JE88, 2010 HD33, P/2010 H4, 2010 GT7
`H10`	Tzec Maun Obs. Mayhill in New Mexico, 9 in MPECs 2010-K51, 2010-K53 & 2010-K54 -- P/2010 J5, P/2010 J3, C/2010 J1, P/2010 H2, C/2009 R1, C/2009 K5, C/2007 Q3-A, 81P, 10P
`D96`	Tzec Maun Obs. Moorook in South Australia, 1 in MPEC 2010-K53 -- P/2010 J5
`H47`	Vicksburg Obs. in Mississippi, 3 in MPEC 2010-K54 -- C/2008 FK75, C/2006 S3, 10P
`C51`	WISE in Earth polar orbit, 3 in MPECs 2010-K47 & 2010-K54 -- 2010 JF87, C/2007 B2, 94P
`198`	Wildberg Obs. in Germany, 1 in MPEC 2010-K55 -- 2010 KV39
`367`	Yatsuka Obs. in Japan, 5 in MPECs 2010-K51 & 2010-K54 -- P/2010 J3, C/2010 J1, P/2010 H2, C/2007 Q3-A, 81P
`247`	roving observer, 5 in MPECs 2010-K52 & 2010-K54 -- C/2010 J4, P/2010 J3, C/2009 R1, C/2009 K5, 81P

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

Impact Risk Monitoring on 24 May '10

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2358 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) risk pages.
0000NNN000 Object	Risk Monitor	When Noted UTC	0000T0000 Year Range	VI #	000NN00 Prob Cum	T0000 PS Cum	T0000 PS Max	T S	Notes for Today's Latest Risk Assessments

2010 KU10	NEODyS	0107	2083	1	3.29e-11	-7.66	-7.66	0	NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2010/05/21.150 to 2010/05/22.213."

2010 KR10	NEODyS	0107	2047-2089	5	2.17e-07	-4.05	-4.20	0	NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2010/05/20.442 to 2010/05/22.392."

2010 KQ10	JPL Sentry	1448	2025-2092	5	4.3e-08	-4.92	-5.01	0	JPL: "Analysis based on 20 observations spanning 3.0383 days (2010-May-20.41696 to 2010-May-23.45529)." Diameter approximately 0.210 km. from mean, weighted H=21.0.
2010 KQ10	NEODyS	1448	2025-2085	9	6.94e-08	-4.75	-5.03	0	NEODyS #2 for the day: "Based on 20 optical observations (of which 0 are rejected as outliers) from 2010/05/20.418 to 2010/05/23.456."

2010 JE88	JPL Sentry	1448	R E M O V E D						JPL: Risk listing removed at 0954 UTC.

2010 JU39	NEODyS	0107	R E M O V E D						-

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 24 May '10

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

2358	Grabbed MPEC 2010-K55 - 2010 KV39 - see above
2258	Noted Radar Astrometry database update - see above
1802	Grabbed MPEC 2010-K54 - Observations of Comets - see above
1719	Grabbed MPEC 2010-K52 - Comet C/2010 J4 (WISE) - see above Grabbed MPEC 2010-K53 - Comet P/2010 J5 (McNaught) - see above
1609	Grabbed MPEC 2010-K48 - Comet C/2010 G2 (Hill) - see above Grabbed MPEC 2010-K49 - Comet C/2010 G3 (WISE) - see above Grabbed MPEC 2010-K50 - Comet P/2010 H4 (Scotti) - see above Grabbed MPEC 2010-K51 - Comet C/2010 J1 (Boattini) - see above
1448	Noted that JPL Sentry has removed 2010 JE88 as an impact risk - see above Noted that JPL Sentry has updated its 2010 KQ10 risk assessment - see above Noted that NEODyS has updated its 2010 KQ10 risk assessment - see above Grabbed MPEC 2010-K47 - Daily Orbit Update - see above
0107	Noted that NEODyS has removed 2010 JU39 as an impact risk - see above Noted that NEODyS has updated its 2010 KQ10 risk assessment - see above Noted that NEODyS has updated its 2010 KR10 risk assessment - see above Noted that NEODyS has posted 2010 KU10 as an impact risk - see above

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