Contents  on 21 May '11

Resources:

The latest A/CC news is available via framed access, RSS news feed 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 21 May '11

The MPC's NEO Confirmation Page has 23 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 23 objects listed. Of these, sixteen were "one nighters." So far The Tracking News has counted a total of 31 listings on the NEOCP 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 21 May '11

Minor Planet Electronic Circulars

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


MPEC 2011-K13 - "16:00 UT" - Observations and Orbits of Comets


<< DOU on 21 May '11 >>  MPEC 2011-K12 - "07:06 UT" - Daily Orbit Update

Observers  on 21 May '11

A total of 42 observers appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 10 in MPEC 2011-K13 -- C/2011 F1, C/2011 C1, C/2011 A3, C/2010 X1, C/2010 R1, C/2010 G2, C/2010 FB87, C/2009 Y1, C/2009 UG89, 213P
069Baldone Obs. in Latvia, 1 in MPEC 2011-K13 -- C/2010 X1
B96Brixiis Obs. in Belgium, 1 in MPEC 2011-K13 -- C/2011 A3
703Catalina Sky Survey (CSS) in Arizona, 5 in MPECs 2011-K12 & 2011-K13 -- 2011 HP, 2010 TU5, C/2009 F2, 1998 KH9, 1866
807|Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 9 in MPEC 2011-K12 -- 2011 JR13, 2011 JL, 2011 HQ, 2011 HP, 2011 HL7, 2011 GX65, 2011 GQ65, 2011 GA55, 2011 BB
A77Chante-Perdrix Obs. in France, 1 in MPEC 2011-K13 -- 29P
970Chelmsford Obs. in England, 5 in MPEC 2011-K13 -- C/2011 A3, C/2010 X1, C/2010 G2, C/2009 UG89, C/2007 VO53
J01Cielo Profundo Obs. in Spain, 1 in MPEC 2011-K13 -- 29P
958Dax Obs. in France, 14 in MPEC 2011-K13 -- C/2011 F1, C/2011 A3, C/2010 X1, C/2009 Y1, C/2009 UG89, C/2009 F2, C/2008 FK75, C/2007 VO53, C/2007 Q3, C/2006 S3, 240P, 123P, 115P, 29P
372Geisei Obs. in Japan, 1 in MPEC 2011-K13 -- C/2011 F1
203GiaGa Obs. in Italy, 4 in MPECs 2011-K12 & 2011-K13 -- 2011 HQ, 2011 HO, C/2011 A3, 141432
J95Great Shefford Obs. in England, 1 in MPEC 2011-K13 -- C/2011 J3
442Gualba Obs. in Spain, 2 in MPEC 2011-K13 -- 103P, 29P
I82Guimar Obs., 1 in MPEC 2011-K13 -- 29P
H15ISON-NM Obs. in New Mexico, 1 in MPEC 2011-K13 -- C/2010 X1
585Kiev Comet Station in the Ukraine, 4 in MPEC 2011-K13 -- C/2011 A3, C/2009 Y1, 240P, 123P
A33Kirchheim Obs. in Germany, 7 in MPEC 2011-K13 -- C/2011 A3, C/2010 X1, C/2009 UG89, C/2009 F2, 123P, 73P, 29P
D95Kurihara Obs. in Japan, 4 in MPEC 2011-K13 -- C/2010 X1, 240P, 123P, 29P
704LINEAR in New Mexico, 1 in MPEC 2011-K13 -- C/2011 F1
212La Dehesilla Obs. in Spain, 1 in MPEC 2011-K13 -- 123P
J38La Vara Obs. in Spain, 3 in MPEC 2011-K13 -- C/2010 X1, 240P, 29P
C10Maisoncelles Obs. in France, 4 in MPEC 2011-K13 -- C/2011 A3, C/2010 X1, 29P, 21P
A01Masia Cal Maciarol Modul 1 in Spain, 1 in MPEC 2011-K13 -- 29P
A06Mataro Obs. in Spain, 2 in MPEC 2011-K13 -- C/2010 X1, 29P
213Montcabre Obs. in Spain, 2 in MPEC 2011-K13 -- C/2010 X1, 29P
945Monte Deva Obs. in Spain, 2 in MPEC 2011-K13 -- C/2010 G2, 29P
D81Nagano Obs. in Japan, 1 in MPEC 2011-K13 -- C/2011 C1
J47Nazaret Obs. in Spain, 2 in MPEC 2011-K13 -- C/2010 X1, 103P
F51Pan-STARRS 1 in Hawaii, 1 in MPEC 2011-K12 -- 2011 HO
H23Pear Tree Obs. in Florida, 1 in MPEC 2011-K13 -- 115P
H06*Rolando Ligustri in Italy via RAS Obs. Mayhill in New Mexico, 2 in MPEC 2011-K13 -- C/2010 X1, 29P
H06|Hidetaka Sato in Japan via RAS Obs. Mayhill in New Mexico, 11 in MPEC 2011-K13 -- C/2011 J3, C/2011 G1, C/2011 F1, C/2011 C1, C/2009 Y1, C/2009 UG89, C/2009 P1, 240P, 130P, 78P, 73P
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 5 in MPEC 2011-K13 -- C/2010 X1, C/2009 F4, 74P, 37P, 29P
233San Vito Obs. in Italy, 4 in MPEC 2011-K13 -- C/2011 F1, C/2011 A3, C/2010 X1, 29P
204Schiaparelli Obs. in Italy, 5 in MPEC 2011-K13 -- C/2010 J2, C/2009 UG89, C/2007 VO53, C/2007 Q3, C/2006 S3
E12Siding Spring Survey in New South Wales, 1 in MPEC 2011-K12 -- 3199
G68Sierra Stars Obs. in northern California, 1 in MPEC 2011-K13 -- C/2010 X1
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2011-K13 -- 115P
291Spacewatch 1.8m telescope in Arizona, 7 in MPEC 2011-K12 -- 2011 JK, 2011 HF, 2011 GA, 2011 EF17, 2011 DU, 2011 BX18, 2010 SO16
A71Stixendorf Obs. in Austria, 4 in MPECs 2011-K12 & 2011-K13 -- C/2011 A3, C/2010 X1, 4954, 73P
H10Tzec Maun Obs. Mayhill in New Mexico, 3 in MPEC 2011-K13 -- C/2010 X1, C/2010 G2, 115P
D96Tzec Maun Obs. Moorook in South Australia, 1 in MPEC 2011-K13 -- C/2009 F4
6962Matthew J. Holman via Whipple Obs. in Arizona, 1 in MPEC 2011-K12 -- 2011 EZ78
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 21 May '11

At last check (NEODyS and JPL at 2359 UTC) there was no risk monitoring news to report yet today. Visit the CRT to view activity in the last four weeks and our ephemerides page for a complete list of risk-rated objects under current observation or having recent news.

Chronology  on 21 May '11

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

1635Grabbed MPEC 2011-K12 - Daily Orbit Update - see above
Grabbed MPEC 2011-K13 - Observations and Orbits of Comets - see above