National Geographic reports that, "Despite its extreme cold, [Pluto] appears to be warm enough to 'easily' have a subsurface ocean, according to a new model of the rate at which radioactive heat might still warm Pluto's core." The images here are the best available of Pluto perhaps until the New Horizons spacecraft shoots by in 2015. They were released last February after 20 computers worked simultaneously for four years to process 384 Hubble Space Telescope images from 2002 to 2003, credit NASA, ESA, and Marc Buie.
Contents on 18 December '10
- IAU Minor Planet Center
- NEOCP Activity -- seven listings: 1 new, 6 updated
- New MPECs -- two MPECs
- Observers -- 61 observers
- Impact Risk Monitoring -- one object
- Chronology
Resources:
- Consolidated Risk Tables - the CRT page
Of 389 risk-listed objects, 351 have had news in the last 31 days. Updated at 1601 UTC on 18 Dec. - Earth's Busy Neighborhood Traffic Report
Five objects are known to be within ten LD of Earth today. Updated at 1727 UTC on 18 Dec. - 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 18 December '10
The MPC's NEO Confirmation Page has 7 listings: 1 new, 6 updated
When last checked at 2236 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and six updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of ten listings on the NEOCP at some point today.
To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.
New MPECs on 18 December '10
Minor Planet Electronic Circulars
As of last check at 2236 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2010-Y11 time-stamped "07:08 UT" - Daily Orbit Update - see below
- MPEC 2010-Y12 time-stamped "16:49 UT" - Observations and Orbits of Comets
MPEC 2010-Y12 - "16:49 UT" - Observations and Orbits of Comets
- CK10X010 C/2010 X1 (Elenin) (i=1.9°, q=0.448 AU, TP=2011 Sept. 5.47124 TT) from Tzec Maun Obs. Mayhill (Dec. 13.42-43p3 & 14.51-52p2), Magdalena Ridge Obs. (MRO) (Dec. 13.51-53p4), ISON-NM Obs. (Dec. 14.44-47p3, 14.51p1, 15.48-49p2, 16.42p1 & 16.48-52p2), H. Sato via RAS Obs. Mayhill (Dec. 16.49-50p3), and Cielo Profundo Obs. (Dec. 17.21-25p3)
- PK10W010 P/2010 W1 (Gibbs) (q=2.147 AU, Q=9.797 AU, TP=2011 Feb. 8.73488 TT) from NEAT's GEODSS Haleakala telescope (1996 Sept. 14.63p1)
- PK10V010 P/2010 V1 (Ikeya-Murakami) from Dax Obs. (Dec. 8.26-27p3, 10.24-26p3, 11.24-26p4 & 15.23-25p3), Tzec Maun Obs. Mayhill (Dec. 8.51-53p2 & 14.52-53p2), Cordell-Lorenz Obs. (Dec. 9.45-48p3), Kurihara Obs. (Dec. 10.84-86p3), and Sato/RAS Mayhill (Dec. 11.52-53p3)
- CK10U030 C/2010 U3 (Boattini) from Remanzacco Obs. (Nov. 4.95p2) and Tzec Maun Obs. Mayhill (Dec. 10.36p1)
- PK10U020 P/2010 U2 (Hill) from Moriyama Obs. (Dec. 8.51-52p2), Dax Obs. (Dec. 9.86-89p2, 9.99-00p2, 10.89p1, 10.99p1, 13.86-89p2 & 13.98p1), Vallauris Obs. (Dec. 11.74p2), Vitebsk Obs. (Dec. 11.79-80p2), and Kiev Comet Station (Dec. 12.87-88p3)
- CK10S010 C/2010 S1 (LINEAR) from Dax Obs. (Dec. 6.94-95p2, 7.02p1, 9.92-93p3, 11.90-93p3, 13.95-97p3, 14.93-94p3 & 15.87-89p3), Moriyama Obs. (Dec. 8.55p2), Sendai Obs. (Dec. 8.66p4 & 15.67p3), Altamira Obs. (Dec. 9.93-94p3 & 14.84p3), Montcabre Obs. (Dec. 10.88-89p3 & 15.85p2), Rouet Obs. (Dec. 10.93-94p3), Vitebsk Obs. (Dec. 11.76-77p3), Vallauris Obs. (Dec. 11.77-78p2), Castelmartini Obs. (Dec. 15.76p3), and La Vara Obs. (Dec. 16.93-94p3)
- CK10K07W C/2010 KW7 (WISE) from Schiaparelli Obs. (Nov. 30.09-11p3), the Spacewatch 1.8m telescope (Dec. 13.30-31p3), and ISON-NM Obs. (Dec. 13.33-38p4)
- CK10F87B C/2010 FB87 (WISE-Garradd) from Tzec Maun Obs. Moorook (Dec. 9.66-68p2) and Los Molinos Obs. (Dec. 11.26-29p3)
- CK10B010 C/2010 B1 (Cardinal) (i=102.0°, q=2.941 AU, Q=6133.435 AU, TP=2011 Feb. 7.07692 TT) from Dax Obs. (Dec. 3.98-03p5, 8.18-19p3, 11.10-11p3, 12.04-06p3, 13.07-09p3, 14.05-07p3, 15.03-05p3 & 16.05-07p3), Vicksburg Obs. (Dec. 7.30-32p3, 12.36-37p3 & 14.21-23p3), AAAA Buenos Aires Obs. (Dec. 8.20-26p3), Sendai Obs. (Dec. 8.63p3, 15.67p3, 16.61-62p4 & 17.71-72p3), LINEAR (Dec. 9.34-39p5), Tzec Maun Obs. Mayhill (Dec. 9.42-45p2, 11.45-46p2 & 15.46-47p3), Tzec Maun Obs. Moorook (Dec. 9.65-67p2 & 12.60-63p2), CAST Obs. (Dec. 9.93-94p2), Montcabre Obs. (Dec. 11.04p3), Rouet Obs. (Dec. 11.11-12p4), Los Molinos Obs. (Dec. 11.19-21p3), Montseny Obs. (Dec. 12.01-03p8), Masquefa Obs. (Dec. 12.07-11p3), Olmen Obs. (Dec. 12.94-97p4), Kiev Comet Station (Dec. 13.00-01p6), Brixiis Obs. (Dec. 13.11-13p7), Monte Deva Obs. (Dec. 14.04-05p5 & 16.91p5), Cielo Profundo Obs. (Dec. 15.05-06p3), Borken Obs. (Dec. 15.87-88p5), Paus Obs. (Dec. 15.91-97p3), La Vara Obs. (Dec. 16.90p3), and Hiratsuka Obs. (Dec. 18.56p2)
- CK09Y010 C/2009 Y1 (Catalina) from Dax Obs. (Dec. 6.83-85p3, 9.78-82p6, 10.79-82p3, 11.78p1, 11.84-85p2, 13.79-83p3, 14.78-83p3 & 15.79-86p4), Olmen Obs. (Dec. 8.83-85p4 & 12.72-76p4), CAST Obs. (Dec. 9.82p2), Moriyama Obs. (Dec. 10.46-47p2), La Vara Obs. (Dec. 10.84-85p3, 14.83-84p3 & 16.83p3), Masquefa Obs. (Dec. 11.80-81p3), Brixiis Obs. (Dec. 12.74-76p8), Altamira Obs. (Dec. 14.82p3), Santa Maria de Montmagastrell Obs. (Dec. 14.82-84p3), and Chante-Perdrix Obs. (Dec. 15.73-74p2)
- CK09T010 C/2009 T1 (McNaught) from the Catalina Sky Survey (CSS) (Dec. 13.24-26p4)
- CK09P010 C/2009 P1 (Garradd) from AAAA Buenos Aires Obs. (Nov. 12.99-04p3), Moriyama Obs. (Dec. 8.41-42p2), and Vicksburg Obs. (Dec. 9.04-06p4 & 10.07-08p4)
- CK09K050 C/2009 K5 (McNaught) from Rhozen Obs. (Nov. 14.01-05p25 & 15.93p7), Dax Obs. (Dec. 8.21-22p3, 10.02-05p3, 11.99-01p3, 13.02-03p3, 14.03-04p3, 14.99-01p2 & 15.95-97p3), Sendai Obs. (Dec. 8.65p3, 15.64p3, 16.62p3 & 17.74p3), Vicksburg Obs. (Dec. 9.21-22p3 & 14.19-21p3), Tzec Maun Obs. Mayhill (Dec. 9.32p3, 11.46-48p2, 12.36-37p2, 14.43-44p2 & 16.36-37p3), CAST Obs. (Dec. 9.87-88p2), Malina River Obs. (Dec. 10.83-86p5), Rouet Obs. (Dec. 10.89p2), Cielo Profundo Obs. (Dec. 10.92p3, 13.96p3 & 14.91-93p3), Vallauris Obs. (Dec. 11.85-86p2), Montseny Obs. (Dec. 11.91-93p9), Masquefa Obs. (Dec. 12.05-06p3), Borken Obs. (Dec. 12.93-94p3), Monte Deva Obs. (Dec. 14.08-09p5 & 16.92-94p5), Paus Obs. (Dec. 15.82-83p3), Jaen Obs. (Dec. 15.89-90p2), and Hamamatsu-Yuto Obs. (Dec. 17.63-65p3)
- CK08S030 C/2008 S3 (Boattini) from Moriyama Obs. (Dec. 8.46-47p2), Sendai Obs. (Dec. 8.50p3), Vicksburg Obs. (Dec. 9.08-13p3, 10.10-11p3, 13.06-10p3 & 14.09-13p3), CSS (Dec. 9.17-20p4), and Santa Maria de M. Obs. (Dec. 14.85-86p3)
- CK08F75K C/2008 FK75 (Lemmon-Siding Spring) from Dax Obs. (Dec. 9.73-75p3, 10.76-77p3 & 15.75-76p3), Masquefa Obs. (Dec. 11.76-80p3), and La Vara Obs. (Dec. 16.85-86p3)
- CK07G010 C/2007 G1 (LINEAR) from Cielo Profundo Obs. (Dec. 15.98-01p3)
- CK06S030 C/2006 S3 (LONEOS) from Dax Obs. (Dec. 10.73-75p3 & 14.74-76p3)
- CK05L030 C/2005 L3 (McNaught) (i=139.4°, q=5.593 AU, Q=117747.375 AU, TP=2008 Jan. 16.00637 TT) from Rhozen Obs. (Nov. 14.13-14p4), Vicksburg Obs. (Dec. 7.47-49p3), Tzec Maun Obs. Mayhill (Dec. 8.42-43p3 & 10.34-36p2), and Sendai Obs. (Dec. 15.80p1 & 16.80p3)
- 0246P 246P/NEAT from Tzec Maun Obs. Mayhill (Dec. 12.31-34p2)
- 0241P 241P/LINEAR from Sendai Obs. (Dec. 8.71-72p3, 15.70p3, 16.79p3 & 17.75p4), Kiev Comet Station (Dec. 13.15-16p3), LINEAR (Dec. 14.33-39p5), and CSS (Dec. 14.49-51p4)
- 0240P 240P/NEAT (q=2.124 AU, Q=5.600 AU, TP=2010 Oct. 4.27513 TT) from Sato/RAS Mayhill (Nov. 15.39-40p4), Vicksburg Obs. (Dec. 7.28-29p3 & 14.24-26p3), Dax Obs. (Dec. 8.23-24p3, 10.07-09p3, 11.15-17p3, 12.10-12p3, 13.04-06p3 & 16.00-03p3), Sendai Obs. (Dec. 8.64p3, 15.71p3, 16.72-73p3 & 17.75p3), Tzec Maun Obs. Mayhill (Dec. 9.49-50p2, 11.47p1, 12.37-39p2 & 14.34-36p3), CAST Obs. (Dec. 9.92-93p2), Vallauris Obs. (Dec. 9.99-01p3), GiaGa Obs. (Dec. 10.06-07p2), Altamira Obs. (Dec. 10.10-11p3), La Vara Obs. (Dec. 10.93-94p3 & 16.98p3), Rouet Obs. (Dec. 10.97-01p3), M. Suzuki via RAS Obs. Mayhill (Dec. 11.18p2), Montseny Obs. (Dec. 11.98-99p8), Masquefa Obs. (Dec. 12.06-07p3), Montcabre Obs. (Dec. 12.13-14p3 & 12.92-96p3), Olmen Obs. (Dec. 12.90-93p4), Crni Vrh Obs. (Dec. 12.98-01p4), Kiev Comet Station (Dec. 12.98-99p9), Brixiis Obs. (Dec. 13.13-16p8), CSS (Dec. 14.36-38p5), Paus Obs. (Dec. 15.87-89p3), Cielo Profundo Obs. (Dec. 15.93-96p3), Monte Deva Obs. (Dec. 16.97-99p5), Santa Maria de M. Obs. (Dec. 17.94-95p3), and Hiratsuka Obs. (Dec. 18.55p2)
- 0236P 236P/LINEAR from Moriyama Obs. (Dec. 8.49-50p2) and Sendai Obs. (Dec. 8.50p3)
- 0231P 231P/LINEAR-NEAT (q=3.033 AU, Q=5.018 AU, TP=2011 May 16.70120 TT) from Sato/RAS Mayhill (Dec. 8.49p3)
- 0228P 228P/LINEAR (q=3.430 AU, Q=4.908 AU, TP=2011 Aug. 23.83976 TT) from Sato/RAS Mayhill (Dec. 8.47-48p3)
- 0223P 223P/Skiff (q=2.420 AU, Q=5.880 AU, TP=2010 Aug. 14.51767 TT) from Moriyama Obs. (Dec. 8.53-54p2), Dax Obs. (Dec. 9.95-97p3, 10.91-93p3, 11.94-97p3, 14.90-92p3 & 15.94p1), Chante-Perdrix Obs. (Dec. 15.75-76p2), and Montcabre Obs. (Dec. 15.82-83p3)
- 0219P 219P/LINEAR from Ametlla del Valles Obs. (Dec. 10.91-95p3), Dax Obs. (Dec. 10.96-98p2), and the Mt. Lemmon Survey (MLS) (Dec. 14.10-12p4)
- 0203P 203P/Korlevic (q=3.182 AU, Q=6.110 AU, TP=2010 Feb. 8.20713 TT) from Tzec Maun Obs. Mayhill (Dec. 8.44p3, 9.46-47p2 & 13.40-41p3)
- 0162P 162P/Siding Spring from Tzec Maun Obs. Mayhill (Dec. 10.47-49p3)
- 0123P 123P/West-Hartley from CAST Obs. (Dec. 9.91-92p2), La Vara Obs. (Dec. 10.90-91p3 & 16.95-97p3), Dax Obs. (Dec. 11.02-04p3), Tzec Maun Obs. Mayhill (Dec. 11.47-49p2), Montseny Obs. (Dec. 11.93-94p5), Olmen Obs. (Dec. 12.87-90p3), Montcabre Obs. (Dec. 12.89-91p3 & 15.91-92p3), Chante-Perdrix Obs. (Dec. 13.83-85p3), the Spaceguard Centre (Dec. 13.96p1), Monte Deva Obs. (Dec. 14.07-08p5), Cielo Profundo Obs. (Dec. 14.94-97p4), Sendai Obs. (Dec. 15.63p4, 16.63p2 & 17.74p3), Paus Obs. (Dec. 15.84-86p3), and Hiratsuka Obs. (Dec. 18.53p2)
- 0103P 103P/Hartley 2 from Rhozen Obs. (Nov. 14.06-12p60), Tzec Maun Obs. Mayhill (Nov. 20.47-48p8, Dec. 8.39p4, 8.51-54p2, 9.43-44p2, 11.44-46p2 & 12.40-41p2), Dax Obs. (Dec. 4.04-08p5, 8.12-15p5, 10.15-17p3, 11.12-14p3, 12.07-09p3, 13.10-13p4, 14.08-10p4, 15.06-08p3 & 16.08-11p3), Vicksburg Obs. (Dec. 7.39-42p3, 12.39-41p3 & 13.42-44p3), Sendai Obs. (Dec. 8.66p3, 15.68p3 & 16.64-65p3), Tzec Maun Obs. Moorook (Dec. 9.66-68p2), Nazaret Obs. (Dec. 11.02p1, 11.16p1 & 11.26p1), Masquefa Obs. (Dec. 11.04-06p3 & 12.09-10p3), Rouet Obs. (Dec. 11.07-09p4), Masia Cal Maciarol Modul 1 (MCM1) (Dec. 12.01-02p3), Brixiis Obs. (Dec. 13.08-11p8), Monte Deva Obs. (Dec. 14.11-12p5 & 17.01-02p5), Cielo Profundo Obs. (Dec. 15.06-09p4), Wellinghofen Obs. (Dec. 16.14-15p3), Grove Creek Obs. (Dec. 16.55-56p2), La Vara Obs. (Dec. 16.99p2), and Hamamatsu-Yuto Obs. (Dec. 17.66-67p3)
- 0088P 88P/Howell from Vicksburg Obs. (Dec. 9.23-26p3) and LINEAR (Dec. 13.15-20p5)
- 0073P c 73P/Schwassmann-Wachmann 3 C (q=0.943 AU, Q=5.184 AU, TP=2011 Oct. 16.89347 TT) from Majdanak Obs. (Nov. 28.92-93p4, Dec. 11.94-95p4, 12.99p3 & 17.92-93p4)
- 0065P 65P/Gunn from Vicksburg Obs. (Dec. 7.99-02p3, 9.00-01p3, 10.04-06p3 & 13.02-04p3)
- 0043P 43P/Wolf-Harrington from Dax Obs. (Dec. 10.21-23p3, 11.22-23p2 & 15.20-22p3), Kurihara Obs. (Dec. 10.81p2), and Sendai Obs. (Dec. 16.84p3)
- 0031P 31P/Schwassmann-Wachmann 2 from CSS (Dec. 10.49-51p4) and Tzec Maun Obs. Mayhill (Dec. 13.39-41p2)
- 0029P 29P/Schwassmann-Wachmann 1 from Vicksburg Obs. (Dec. 7.46p1), Tzec Maun Obs. Mayhill (Dec. 8.45p1, 8.50-53p2, 12.40p1, 12.47-49p2 & 13.39p1), Sendai Obs. (Dec. 8.76-77p4, 15.81p3, 16.81p3 & 17.79p3), Dax Obs. (Dec. 10.18-20p3, 11.19-20p3, 12.14-16p3, 14.16-18p2 & 15.17-19p3), Kurihara Obs. (Dec. 10.80p2), Rouet Obs. (Dec. 11.13-15p3), Monte Deva Obs. (Dec. 14.13-15p5), Chante-Perdrix Obs. (Dec. 14.22p1), Gualba Obs. (Dec. 15.19p2), Cielo Profundo Obs. (Dec. 16.24p2), and Santa Maria de M. Obs. (Dec. 18.22-23p3)
- 0010P 10P/Tempel 2 from Hiratsuka Obs. (Dec. 4.42-43p3), Remanzacco Obs. (Dec. 4.81p2), Dax Obs. (Dec. 6.91-92p3, 10.85-87p3, 11.87-88p3, 13.91-93p3 & 14.86-88p3), Sendai Obs. (Dec. 8.49-50p4), Mt. Tuffley Obs. (Dec. 8.85p2), Vicksburg Obs. (Dec. 9.17-18p4, 10.13-15p3, 13.12-13p3 & 14.16-17p3), Vallauris Obs. (Dec. 9.74-77p3), CAST Obs. (Dec. 9.89p2), Rouet Obs. (Dec. 10.76-77p2 & 10.82-83p2), Castelmartini Obs. (Dec. 10.80-81p3), Cielo Profundo Obs. (Dec. 10.83-84p3), Mataro Obs. (Dec. 10.85-87p2), Nazaret Obs. (Dec. 10.86-89p2, 10.93p1 & 11.00p1), La Vara Obs. (Dec. 10.86-87p3 & 14.85-86p3), Masquefa Obs. (Dec. 11.83-84p2), MCM1 (Dec. 11.95-96p3), Tzec Maun Obs. Moorook (Dec. 12.60-63p2), and Montcabre Obs. (Dec. 12.77-82p3)
<< DOU on 18 Dec. '10 >> MPEC 2010-Y11 - "07:08 UT" - Daily Orbit Update
- Observations of recently (no longer) risk-listed objects
- K10W09D 2010 WD9 (small asteroid, arc=14 days, H=23.7 ~62m) from Astronomical Research Obs. Westfield (Dec. 14.42-43p3)
- K10W08Z 2010 WZ8 from Castelmartini Obs. (Dec. 16.14p3)
- Observations of small asteroids (H>22.0)
- K10X56M 2010 XM56 (arc=7 days, H=25.0 ~34m) from ARO Westfield (Dec. 14.30p3), Los Molinos Obs. (Dec. 16.08p9), and Great Shefford Obs. (Dec. 16.95-96p3, 17.07p3 & 17.19-20p3)
- K10X11E 2010 XE11 (arc=14 days, H=23.0 ~85m) from Wishing Star Obs. (Dec. 18.03-04p3)
- K10S03P 2010 SP3 (arc=14 days, H=24.8 ~37m) from ARO Westfield (Sept. 21.16-19p3)
- K10R11V 2010 RV11 (arc=6 days, H=27.0 ~13m) from ARO Westfield (Sept. 7.15-18p3)
- Observations of almost-small asteroids (21.7<H<=22.0)
- K10X24B 2010 XB24 (arc=8 days, H=21.8 ~148m) from ARO Westfield (Dec. 14.23-25p4)
- K10X03G 2010 XG3 (arc=14 days, H=21.8 ~148m) from Castelmartini Obs. (Dec. 15.89p3)
- Observations of other objects
- K10X69P 2010 XP69 from Joseph Masiero via Gemini South Obs. (Dec. 15.18-19p12)
- K10X58X 2010 XX58 (q=0.297 AU, Q=4.164 AU, arc=6 days, H=18.5 ~676m) from ARO Westfield (Dec. 14.39-40p3) and Wishing Star Obs. (Dec. 18.06-07p3)
- K10X52K 2010 XK52 (Q=4.165 AU, arc=7 days, H=17.9 ~891m) from Sandlot Obs. (Dec. 17.42-43p3)
- K10X45R 2010 XR45 (Q=4.638 AU, arc=2 days, H=21.7 ~155m) from ARO Westfield (Dec. 14.03-04p4 & 14.12p3)
- K10X24C 2010 XC24 (i=39.0°, arc=9 days, H=19.7 ~389m) from Castelmartini Obs. (Dec. 16.08p3)
- K10X10O 2010 XO10 (arc=13 days, H=20.4 ~282m) from Castelmartini Obs. (Dec. 16.01p3)
- K10W00L 2010 WL (arc=27 days, H=20.0 ~339m) from Castelmartini Obs. (Dec. 16.00-01p3)
- K10W00J 2010 WJ (arc=29 days, H=18.3 ~741m) from Castelmartini Obs. (Dec. 15.99-00p3)
- K10VI8K 2010 VK188 (arc=2 opp, H=18.4 ~708m) from Castelmartini Obs. (Dec. 16.05p3)
- K10S03V 2010 SV3 (arc=53 days, H=20.6 ~257m) from ARO Westfield (Sept. 21.20-22p3)
- K10R43K 2010 RK43 (arc=63 days, H=20.7 ~245m) from ARO Westfield (Sept. 21.13-15p3)
- K10R11T 2010 RT11 (arc=33 days, H=18.9 ~562m) from ARO Westfield (Oct. 5.16-19p2 at V=22.1-2)
- K10OA1N 2010 ON101 (arc=128 days, H=20.4 ~282m) from ARO Westfield (Oct. 5.11-14p2)
- K10L68R 2010 LR68 (Q=4.878 AU, arc=2 opp, H=18.4 ~708m) from Castelmartini Obs. (Dec. 16.06-07p3)
- K10J33L 2010 JL33 (Q=4.634 AU, arc=4 opp, H=17.6 ~1.02 km) from Hamamatsu-Yuto Obs. (Dec. 17.39-46p17)
- K06V14B 2006 VB14 (arc=3 opp, H=18.5 ~676m) from AAAA Buenos Aires Obs. (Dec. 15.08-11p3) and Hamamatsu-Yuto Obs. (Dec. 17.51-57p8)
- K00A06C 2000 AC6 (arc=4 opp, H=21.5 ~170m) from Hamamatsu-Yuto Obs. (Dec. 17.57-61p4)
- O9886 249886 2001 RY11 from Wishing Star Obs. (Dec. 17.98-99p3)
- K7945 207945 1991 JW from Wishing Star Obs. (Dec. 17.96-97p3)
- J8856 198856 2005 LR3 from Wishing Star Obs. (Dec. 18.00-01p3)
Observers on 18 December '10
A total of 61 observers appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| 834 | AAAA Buenos Aires Obs. in Argentina, 3 in MPECs 2010-Y11 & 2010-Y12 -- C/2010 B1, C/2009 P1, 2006 VB14 |
| J24 | Altamira Obs. in the Canary Islands, 3 in MPEC 2010-Y12 -- C/2010 S1, C/2009 Y1, 240P |
| B37 | Ametlla del Valles Obs. in Spain, 1 in MPEC 2010-Y12 -- 219P |
| H21 | Astronomical Research Obs. Westfield in Illinois, 11 in MPEC 2010-Y11 -- 2010 XX58, 2010 XR45, 2010 XM56, 2010 XB24, 2010 WD9, 2010 SV3, 2010 SP3, 2010 RV11, 2010 RT11, 2010 RK43, 2010 ON101 |
| B59 | Borken Obs. in Germany, 2 in MPEC 2010-Y12 -- C/2010 B1, C/2009 K5 |
| B96 | Brixiis Obs. in Belgium, 4 in MPEC 2010-Y12 -- C/2010 B1, C/2009 Y1, 240P, 103P |
| 235 | CAST Obs. in Italy, 6 in MPEC 2010-Y12 -- C/2010 B1, C/2009 Y1, C/2009 K5, 240P, 123P, 10P |
| 160 | Castelmartini Obs. in Italy, 10 in MPECs 2010-Y11 & 2010-Y12 -- 2010 XO10, 2010 XG3, 2010 XC24, 2010 WZ8, 2010 WL, 2010 WJ, 2010 VK188, C/2010 S1, 2010 LR68, 10P |
| 703 | Catalina Sky Survey (CSS) in Arizona, 5 in MPEC 2010-Y12 -- C/2009 T1, C/2008 S3, 241P, 240P, 31P |
| A77 | Chante-Perdrix Obs. in France, 4 in MPEC 2010-Y12 -- C/2009 Y1, 223P, 123P, 29P |
| J01 | Cielo Profundo Obs. in Spain, 9 in MPEC 2010-Y12 -- C/2010 X1, C/2010 B1, C/2009 K5, C/2007 G1, 240P, 123P, 103P, 29P, 10P |
| 850 | Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2010-Y12 -- P/2010 V1 |
| 106 | Crni Vrh Obs. in Slovenia, 1 in MPEC 2010-Y12 -- 240P |
| 958 | Dax Obs. in France, 16 in MPEC 2010-Y12 -- P/2010 V1, P/2010 U2, C/2010 S1, C/2010 B1, C/2009 Y1, C/2009 K5, C/2008 FK75, C/2006 S3, 240P, 223P, 219P, 123P, 103P, 43P, 29P, 10P |
| I114 | Joseph Masiero in southern California via Gemini South Obs. in Chile, 1 in MPEC 2010-Y11 -- 2010 XP69 |
| 203 | GiaGa Obs. in Italy, 1 in MPEC 2010-Y12 -- 240P |
| J95 | Great Shefford Obs. in England, 1 in MPEC 2010-Y11 -- 2010 XM56 |
| E16 | Grove Creek Obs. in New South Wales, 1 in MPEC 2010-Y12 -- 103P |
| 442 | Gualba Obs. in Spain, 1 in MPEC 2010-Y12 -- 29P |
| 379 | Hamamatsu-Yuto Obs. in Japan, 5 in MPECs 2010-Y11 & 2010-Y12 -- 2010 JL33, C/2009 K5, 2006 VB14, 2000 AC6, 103P |
| D88 | Hiratsuka Obs. in Japan, 4 in MPEC 2010-Y12 -- C/2010 B1, 240P, 123P, 10P |
| H15 | ISON-NM Obs. in New Mexico, 2 in MPEC 2010-Y12 -- C/2010 X1, C/2010 KW7 |
| J28 | Jaen Obs. in Spain, 1 in MPEC 2010-Y12 -- C/2009 K5 |
| 585 | Kiev Comet Station in the Ukraine, 4 in MPEC 2010-Y12 -- P/2010 U2, C/2010 B1, 241P, 240P |
| D95 | Kurihara Obs. in Japan, 3 in MPEC 2010-Y12 -- P/2010 V1, 43P, 29P |
| 704 | LINEAR in New Mexico, 3 in MPEC 2010-Y12 -- C/2010 B1, 241P, 88P |
| J38 | La Vara Obs. in Spain, 8 in MPEC 2010-Y12 -- C/2010 S1, C/2010 B1, C/2009 Y1, C/2008 FK75, 240P, 123P, 103P, 10P |
| 844 | Los Molinos Obs. in Uruguay, 3 in MPECs 2010-Y11 & 2010-Y12 -- 2010 XM56, C/2010 FB87, C/2010 B1 |
| H01 | Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2010-Y12 -- C/2010 X1 |
| 188 | Majdanak Obs. in Uzbekistan, 1 in MPEC 2010-Y12 -- 73P-C |
| B90 | Malina River Obs. in Italy, 1 in MPEC 2010-Y12 -- C/2009 K5 |
| A01 | Masia Cal Maciarol Modul 1 (MCM1) in Spain, 2 in MPEC 2010-Y12 -- 103P, 10P |
| 232 | Masquefa Obs. in Spain, 7 in MPEC 2010-Y12 -- C/2010 B1, C/2009 Y1, C/2009 K5, C/2008 FK75, 240P, 103P, 10P |
| A06 | Mataro Obs. in Spain, 1 in MPEC 2010-Y12 -- 10P |
| 213 | Montcabre Obs. in Spain, 6 in MPEC 2010-Y12 -- C/2010 S1, C/2010 B1, 240P, 223P, 123P, 10P |
| 945 | Monte Deva Obs. in Spain, 6 in MPEC 2010-Y12 -- C/2010 B1, C/2009 K5, 240P, 123P, 103P, 29P |
| B06 | Montseny Obs. in Spain, 4 in MPEC 2010-Y12 -- C/2010 B1, C/2009 K5, 240P, 123P |
| 900 | Moriyama Obs. in Japan, 7 in MPEC 2010-Y12 -- P/2010 U2, C/2010 S1, C/2009 Y1, C/2009 P1, C/2008 S3, 236P, 223P |
| G96 | Mt. Lemmon Survey in Arizona, 1 in MPEC 2010-Y12 -- 219P |
| J93 | Mt. Tuffley Obs. in England, 1 in MPEC 2010-Y12 -- 10P |
| 566 | NEAT's GEODSS Haleakala telescope in Hawaii, 1 in MPEC 2010-Y12 -- P/2010 W1 |
| J47 | Nazaret Obs. in Spain, 2 in MPEC 2010-Y12 -- 103P, 10P |
| C23 | Olmen Obs. in Belgium, 4 in MPEC 2010-Y12 -- C/2010 B1, C/2009 Y1, 240P, 123P |
| B49 | Paus Obs. in Spain, 4 in MPEC 2010-Y12 -- C/2010 B1, C/2009 K5, 240P, 123P |
| H06# | M. Suzuki via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-Y12 -- 240P |
| H06| | H. Sato in Japan via RAS Obs. Mayhill in New Mexico, 5 in MPEC 2010-Y12 -- C/2010 X1, P/2010 V1, 240P, 231P, 228P |
| 473 | Remanzacco Obs. in Italy, 2 in MPEC 2010-Y12 -- C/2010 U3, 10P |
| 071 | Rhozen Obs. in Bulgaria, 3 in MPEC 2010-Y12 -- C/2009 K5, C/2005 L3, 103P |
| C09 | Rouet Obs. in France, 7 in MPEC 2010-Y12 -- C/2010 S1, C/2010 B1, C/2009 K5, 240P, 103P, 29P, 10P |
| H36 | Sandlot Obs. in Kansas, 1 in MPEC 2010-Y11 -- 2010 XK52 |
| B74 | Santa Maria de Montmagastrell Obs. in Spain, 4 in MPEC 2010-Y12 -- C/2009 Y1, C/2008 S3, 240P, 29P |
| 204 | Schiaparelli Obs. in Italy, 1 in MPEC 2010-Y12 -- C/2010 KW7 |
| D93 | Sendai Obs. in Japan, 13 in MPEC 2010-Y12 -- C/2010 S1, C/2010 B1, C/2009 K5, C/2008 S3, C/2005 L3, 241P, 240P, 236P, 123P, 103P, 43P, 29P, 10P |
| J26 | Spaceguard Centre in Wales, 1 in MPEC 2010-Y12 -- 123P |
| 291 | Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2010-Y12 -- C/2010 KW7 |
| H10 | Tzec Maun Obs. Mayhill in New Mexico, 14 in MPEC 2010-Y12 -- C/2010 X1, P/2010 V1, C/2010 U3, C/2010 B1, C/2009 K5, C/2005 L3, 246P, 240P, 203P, 162P, 123P, 103P, 31P, 29P |
| D96 | Tzec Maun Obs. Moorook in South Australia, 4 in MPEC 2010-Y12 -- C/2010 FB87, C/2010 B1, 103P, 10P |
| B51 | Vallauris Obs. in France, 5 in MPEC 2010-Y12 -- P/2010 U2, C/2010 S1, C/2009 K5, 240P, 10P |
| H47 | Vicksburg Obs. in Mississippi, 11 in MPEC 2010-Y12 -- C/2010 B1, C/2009 P1, C/2009 K5, C/2008 S3, C/2005 L3, 240P, 103P, 88P, 65P, 29P, 10P |
| B42 | Vitebsk Obs. in Belarus, 2 in MPEC 2010-Y12 -- P/2010 U2, C/2010 S1 |
| C28 | Wellinghofen Obs. in Germany, 1 in MPEC 2010-Y12 -- 103P |
| I15 | Wishing Star Obs. in Rhode Island, 5 in MPEC 2010-Y11 -- 2010 XX58, 2010 XE11, 249886, 207945, 198856 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 18 December '10
| 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 WE3 | NEODyS | 1600 | 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 18 December '10
Times are UTC for when items were noted or added by The Tracking News.
| 1730 | Grabbed MPEC 2010-Y12 - Observations and Orbits of Comets - see above |
| 1600 | Noted that NEODyS has removed 2010 WE3 as an impact risk - see above Grabbed MPEC 2010-Y11 - Daily Orbit Update - see above |
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