Contents  on 25 May '12

Asteroid/Comet Connection (A/CC) 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.

Traffic Report  on 25 May '12

Three objects reported inside ten LD

Three asteroids are reported traveling within ten lunar distances (LD) of our planet today. Inside Earth's Hill sphere, 2012 KT12 moves away from 1.79 to 2.37 LD. Out further, risk-listed intruder 2012 KP24 enters ten LD, passing from 10.4 to 7.6 LD*, and 2012 KW is outbound from 7.87 to 9.96 LD.

No other objects are known to be approaching to come within ten LD until November.

This report was generated at 1454 (and revised at 1630) UTC with follow-up in today's DOU MPEC for 2012 KP24 and 2012 KT12.


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.

NEOCP Activity  on 25 May '12

The MPC's NEO Confirmation Page has 4 listings

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

New MPECs  on 25 May '12

Minor Planet Electronic Circulars

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


MPEC 2012-K57 - "22:13 UT" - 2012 KF25


<< OOC on 25 May '12 >> MPEC 2012-K56 - "22:03 UT" - Observations and Orbits of Comets


MPEC 2012-K55 - "21:53 UT" - 2012 KE25


MPEC 2012-K54 - "18:24 UT" - P/2005 N3 = 2012 K4 (Larson)


<< DOU on 25 May '12 >>  MPEC 2012-K53 - "06:03 UT" - Daily Orbit Update

Observers  on 25 May '12

A total of 97 observers appear in today's MPECs.

CodeObserver / observatory
J97Alginet Obs. in Spain, 2 in MPEC 2012-K56 -- C/2012 CH17, 29P
H21Astronomical Research Obs. Westfield in Illinois, 12 in MPECs 2012-K53 & 2012-K55 -- 2012 KX, 2012 KO18, 2012 KE25, 2012 KC6, 2012 KA4, 2012 JX11, 2012 JT17, 2012 JR17, 2012 JB16, 2012 HZ33, 2012 HO2, 2011 YU62
I47Auger Obs. in Argentina, 2 in MPEC 2012-K56 -- 117P, 96P
069Baldone Obs. in Latvia, 1 in MPEC 2012-K56 -- C/2009 P1
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2012-K53 -- 2012 JX11
C77Bernezzo Obs. in Italy, 1 in MPEC 2012-K56 -- C/2011 F1
I32Beta Orionis Obs. in Argentina, 1 in MPEC 2012-K56 -- 29P
B75Betelgeuse Station in Italy, 2 in MPEC 2012-K56 -- C/2012 CH17, C/2012 A2
C86Blanes Obs. in Spain, 5 in MPEC 2012-K56 -- C/2011 UF305, C/2011 F1, C/2009 P1, 246P, 29P
I99Blanquita Obs. in Spain, 6 in MPECs 2012-K53 & 2012-K56 -- 2011 WV134, C/2011 F1, C/2009 P1, C/2006 S3, 246P, 29P
B59Borken Obs. in Germany, 1 in MPEC 2012-K56 -- C/2011 F1
B96Brixiis Obs. in Belgium, 14 in MPEC 2012-K56 -- P/2012 K3, C/2012 K1, C/2012 CH17, C/2012 B3, C/2011 UF305, C/2011 L4, C/2011 F1, C/2010 R1, C/2009 P1, C/2006 S3, 246P, 117P, 49P, 29P
215Buchloe Obs. in Germany, 17 in MPEC 2012-K56 -- C/2012 F6, P/2012 F2, C/2012 E1, C/2011 L4, C/2011 J2, C/2011 F1, C/2010 R1, C/2010 L3, C/2009 P1, C/2007 VO53, C/2007 D1, C/2005 L3, 228P, 152P, 123P, 117P, 29P
I72Carpe-Noctem Obs., 4 in MPEC 2012-K56 -- C/2011 UF305, C/2011 F1, C/2009 P1, 29P
160Castelmartini Obs. in Italy, 7 in MPEC 2012-K56 -- C/2012 CH17, C/2011 F1, C/2010 S1, C/2010 R1, C/2009 P1, 246P, 49P
703Catalina Sky Survey (CSS) in Arizona, 11 in MPECs 2012-K53, 2012-K56 & 2012-K57 -- 2012 KF25, C/2012 J1, C/2012 E1, C/2012 CH17, P/2012 B1, C/2010 R1, 85275, 240P, 164P, 152P, 49P
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 12 in MPECs 2012-K53 & 2012-K55 -- 2012 KZ3, 2012 KU12, 2012 KO11, 2012 KN11, 2012 KL18, 2012 KL11, 2012 KE25, 2012 KA4, 2012 JW11, 36017, 5660, 2063
G58Chabot Obs. in northern California, 1 in MPEC 2012-K53 -- 2012 HS15
A77Chante-Perdrix Obs. in France, 4 in MPEC 2012-K56 -- C/2012 CH17, C/2010 R1, 246P, 29P
970Chelmsford Obs. in England, 6 in MPEC 2012-K56 -- C/2012 A2, C/2011 UF305, C/2011 F1, C/2010 R1, 246P, 49P
B92Chinon Obs. in France, 3 in MPEC 2012-K56 -- C/2011 F1, C/2009 P1, C/2006 S3
J01Cielo Profundo Obs. in Spain, 5 in MPEC 2012-K56 -- C/2011 L4, C/2011 F1, C/2010 R1, C/2006 S3, 29P
B50Corner Obs. in Germany, 2 in MPEC 2012-K56 -- C/2010 R1, C/2009 P1
958Dax Obs. in France, 19 in MPEC 2012-K56 -- C/2012 J1, C/2012 CH17, C/2012 A2, C/2011 UF305, C/2011 L4, C/2011 J2, C/2011 F1, C/2010 S1, C/2010 R1, C/2009 P1, C/2006 S3, 246P, 244P, 164P, 152P, 117P, 78P, 49P, 29P
808El Leoncito Obs. in Argentina, 3 in MPEC 2012-K56 -- C/2011 L4, C/2006 S3, 29P
C74El Teatrillo de Lyra Obs. in Spain, 1 in MPEC 2012-K56 -- 246P
E85Farm Cove Obs. in New Zealand, 1 in MPEC 2012-K56 -- C/2011 L4
F65$Ernesto Guido in Italy via Faulkes Telescope North in Hawaii, 1 in MPEC 2012-K54 -- P/2012 K4
F65%Tim Lister in southern California via Faulkes Telescope North in Hawaii, 1 in MPEC 2012-K56 -- C/2012 K1
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 1 in MPEC 2012-K56 -- 17P
E102Ernesto Guido in Italy via Faulkes Telescope South in New South Wales, 2 in MPEC 2012-K56 -- C/2011 L4, 67P
E105Richard Miles in England via Faulkes Telescope South in New South Wales, 2 in MPEC 2012-K56 -- 67P, 17P
E107program code 7 via Faulkes Telescope South in New South Wales, 1 in MPEC 2012-K56 -- C/2010 R1
372Geisei Obs. in Japan, 2 in MPEC 2012-K56 -- C/2012 K1, C/2012 J1
B83Gieres Obs. in France, 2 in MPEC 2012-K56 -- C/2011 F1, 246P
E94Gisborne Obs. in New Zealand, 2 in MPEC 2012-K56 -- C/2011 L4, 29P
J95Great Shefford Obs. in England, 3 in MPECs 2012-K53 & 2012-K57 -- 2012 KT12, 2012 KP24, 2012 KF25
A17Guidestar Obs. in Germany, 5 in MPECs 2012-K53 & 2012-K56 -- 2012 JR17, 2012 JH11, 2012 JB16, C/2012 J1, 2001 QG142
379Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2012-K56 -- 29P
511Haute Provence Obs. in Germany, 2 in MPEC 2012-K56 -- 246P, 29P
J37Huelva Obs. in Spain, 1 in MPEC 2012-K56 -- C/2011 L4
585Kiev Comet Station in the Ukraine, 2 in MPEC 2012-K56 -- C/2010 R1, C/2006 S3
352Konan Obs. in Japan, 2 in MPEC 2012-K56 -- C/2011 L4, C/2006 S3
C40Kuban State Univ. Obs. in Russia, 1 in MPEC 2012-K56 -- C/2009 P1
D95Kurihara Obs. in Japan, 7 in MPEC 2012-K56 -- C/2012 J1, C/2011 UF305, C/2011 L4, C/2010 S1, C/2010 R1, C/2006 S3, 246P
704LINEAR in New Mexico, 10 in MPECs 2012-K53 & 2012-K56 -- C/2012 B3, C/2011 UF305, C/2010 R1, C/2010 G2, C/2006 S3, 310842, 2201, 257P, 152P, 123P
J31La Axarquia Obs. in Spain, 1 in MPEC 2012-K56 -- C/2011 F1
J87La Canada Obs. in Spain, 1 in MPEC 2012-K55 -- 2012 KE25
212La Dehesilla Obs. in Spain, 5 in MPEC 2012-K56 -- C/2011 F1, C/2010 R1, C/2009 P1, 49P, 29P
J38La Vara Obs. in Spain, 12 in MPEC 2012-K56 -- C/2012 K1, C/2012 CH17, C/2011 L4, C/2011 F1, C/2010 R1, C/2009 P1, C/2006 S3, 246P, 117P, 60P, 49P, 29P
130Lumezzane Obs. in Italy, 4 in MPEC 2012-K56 -- C/2012 K1, C/2012 E1, C/2012 B3, C/2010 L3
C94MASTER-II Obs. Tunka in Russia, 1 in MPEC 2012-K56 -- C/2012 K1
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2012-K55 -- 2012 KE25
C10Maisoncelles Obs. in France, 9 in MPEC 2012-K56 -- C/2012 J1, C/2011 L4, C/2010 R1, C/2008 FK75, C/2006 S3, 246P, 152P, 31P, 29P
A06Mataro Obs. in Spain, 2 in MPEC 2012-K56 -- C/2009 P1, 29P
118Modra Obs. in Slovakia, 2 in MPEC 2012-K56 -- P/2010 JC81, C/2009 P1
152Moletai Obs. in Lithuania, 2 in MPEC 2012-K56 -- C/2009 P1, C/2006 S3
213Montcabre Obs. in Spain, 7 in MPEC 2012-K56 -- C/2012 A2, C/2011 F1, C/2010 S1, C/2010 R1, C/2009 P1, 49P, 29P
945Monte Deva Obs. in Spain, 6 in MPEC 2012-K56 -- C/2011 UF305, C/2011 L4, C/2011 F1, C/2009 P1, C/2006 S3, 29P
900Moriyama Obs. in Japan, 9 in MPEC 2012-K56 -- C/2012 J1, C/2012 CH17, C/2012 B3, C/2012 A2, C/2011 L4, C/2011 F1, C/2010 R1, 246P, 49P
474Mt. John Obs. in New Zealand, 4 in MPECs 2012-K55, 2012-K56 & 2012-K57 -- 2012 KF25, 2012 KE25, C/2012 H2, C/2010 R1
G96Mt. Lemmon Survey (MLS) in Arizona, 5 in MPECs 2012-K53 & 2012-K56 -- 2012 KJ11, C/2012 BJ98, C/2010 R1, 253P, 195P
E07Murrumbateman Obs. in New South Wales, 10 in MPEC 2012-K56 -- C/2012 H2, C/2011 O1, C/2011 L4, C/2009 F4, 246P, 152P, 123P, 91P, 29P, 17P
A13Naef Obs. in Switzerland, 1 in MPEC 2012-K56 -- C/2010 R1
D81Nagano Obs. in Japan, 1 in MPEC 2012-K56 -- C/2009 P1
J47Nazaret Obs. in Spain, 1 in MPEC 2012-K56 -- 29P
I89Nerpio Obs. in Italy, 1 in MPEC 2012-K56 -- C/2011 F1
A24New Millennium Obs. in Italy, 12 in MPEC 2012-K56 -- C/2012 CH17, C/2012 A2, C/2011 UF305, C/2011 J2, C/2011 F1, C/2010 R1, P/2010 JC81, C/2009 P1, 246P, 164P, 117P, 49P
C47Nonndorf Obs. in Austria, 13 in MPEC 2012-K56 -- C/2012 A2, C/2011 UF305, C/2011 L4, C/2011 J2, C/2011 F1, C/2010 S1, C/2010 R1, C/2009 P1, C/2006 S3, 246P, 152P, 117P, 49P
411Oizumi Obs. in Japan, 1 in MPEC 2012-K56 -- C/2011 L4
C23Olmen Obs. in Belgium, 16 in MPEC 2012-K56 -- P/2012 K3, C/2012 K1, C/2012 J1, C/2012 CH17, C/2012 B3, C/2012 A2, C/2011 UF305, C/2011 F1, C/2010 S1, C/2010 R1, C/2009 P1, C/2006 S3, 246P, 117P, 49P, 29P
F51Pan-STARRS 1 (PS1) in Hawaii, 7 in MPEC 2012-K56 -- P/2012 H1, C/2011 L4, C/2010 R1, C/2006 S3, 257P, 169P, 31P
H23Pear Tree Obs. in Florida, 2 in MPEC 2012-K56 -- C/2011 F1, C/2010 R1
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPEC 2012-K56 -- C/2012 CH17, C/2012 B3, C/2011 F1, C/2010 R1, 246P, 49P, 29P
H06`Erik Bryssinck in Belgium via RAS Obs. Mayhill in New Mexico, 2 in MPEC 2012-K56 -- C/2011 L4, C/2009 P1
H06|Hidetaka Sato in Japan via RAS Obs. Mayhill in New Mexico, 5 in MPEC 2012-K56 -- C/2012 F6, C/2012 E3, C/2011 KP36, 60P, 17P
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 10 in MPEC 2012-K56 -- C/2012 CH17, C/2012 BJ98, C/2011 L4, C/2011 J2, C/2006 S3, 246P, 152P, 117P, 96P, 91P
071Rhozen Obs. in Bulgaria, 1 in MPEC 2012-K56 -- C/2009 P1
C09Rouet Obs. in France, 2 in MPEC 2012-K56 -- C/2011 F1, 246P
H36Sandlot Obs. in Kansas, 1 in MPEC 2012-K56 -- 152P
C71Sant Marti Sesgueioles Obs. in Spain, 1 in MPEC 2012-K56 -- C/2009 P1
B56Sant Pere Obs. in Spain, 1 in MPEC 2012-K56 -- C/2009 P1
204Schiaparelli Obs. in Italy, 1 in MPEC 2012-K55 -- 2012 KE25
E12Siding Spring Survey in New South Wales, 1 in MPEC 2012-K55 -- 2012 KE25
510Siegen Obs. in Germany, 4 in MPEC 2012-K56 -- C/2012 J1, C/2011 UF305, C/2010 R1, C/2009 P1
G68Sierra Stars Obs. in northern California, 2 in MPEC 2012-K56 -- C/2009 P1, 29P
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2012-K56 -- C/2007 VO53
C36Starry Wanderer Obs., 2 in MPECs 2012-K53 & 2012-K56 -- 2011 WV134, 246P
A71Stixendorf Obs. in Austria, 17 in MPEC 2012-K56 -- P/2012 K3, C/2012 K1, C/2012 J1, P/2012 F5, C/2012 CH17, C/2012 BJ98, C/2012 A2, C/2011 UF305, C/2011 L4, C/2011 J2, C/2011 F1, C/2010 R1, C/2009 P1, C/2006 S3, 246P, 152P, 29P
I81Tarbatness Obs. in Scotland, 1 in MPEC 2012-K56 -- C/2012 J1
A98Taurus-1 Obs. in Belarus, 2 in MPEC 2012-K56 -- C/2011 F1, 246P
954Teide Obs. in the Canary Islands, 1 in MPEC 2012-K56 -- C/2012 J1
B51Vallauris Obs. in France, 6 in MPEC 2012-K56 -- C/2012 B3, C/2011 F1, C/2010 R1, 246P, 152P, 29P
2905Richard P. Boyle via Vatican Advanced Technology Telescope in Arizona, 1 in MPEC 2012-K56 -- C/2006 S3
H47Vicksburg Obs. in Mississippi, 6 in MPEC 2012-K56 -- C/2012 J1, C/2011 L4, C/2006 S3, 152P, 49P, 29P
C90Vinyols Obs., 1 in MPEC 2012-K56 -- C/2011 UF305
B42Vitebsk Obs. in Belarus, 4 in MPEC 2012-K56 -- C/2011 UF305, C/2011 F1, C/2010 S1, C/2010 R1
C28Wellinghofen Obs. in Germany, 2 in MPEC 2012-K56 -- C/2011 UF305, C/2009 P1
198Wildberg Obs. in Germany, 2 in MPECs 2012-K56 & 2012-K57 -- 2012 KF25, C/2010 R1
C42Xingming Obs. in China, 2 in MPEC 2012-K56 -- C/2011 UF305, C/2009 P1
367Yatsuka Obs. in Japan, 14 in MPEC 2012-K56 -- C/2012 J1, C/2012 A2, C/2011 UF305, C/2011 L4, C/2011 F1, C/2011 A3, C/2010 S1, C/2009 P1, C/2006 S3, 246P, 164P, 152P, 78P, 60P
J08Zonalunar Obs. in Spain, 1 in MPEC 2012-K56 -- 29P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 25 May '12

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 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 KP24JPL Sentry14532032-204953.5e-05-4.73-4.930JPL: "Analysis based on 14 observations spanning 1.6018 days (2012-May-23.33535 to 2012-May-24.93713)." Diameter approximately 0.021 km. from mean, weighted H=26.1.
NEODyS14532032-204934.2e-05-4.72-4.730NEODyS: "Based on 14 optical observations (of which 0 are rejected as outliers) from 2012-05-23.336 to 2012-05-24.938."
2012 JR17JPL Sentry1453R E M O V E DJPL: Risk listing removed at 0850 UTC.

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 25 May '12

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

2304Grabbed MPEC 2012-K56 - Observations and Orbits of Comets - see above
Grabbed MPEC 2012-K57 - 2012 KF25 - see above
2205Grabbed MPEC 2012-K55 - 2012 KE25 - see above
1914Grabbed MPEC 2012-K54 - P/2005 N3 = 2012 K4 (Larson) - see above
1454Generated Traffic Report
1453Noted that JPL Sentry has removed 2012 JR17 as an impact risk - see above
Noted that JPL Sentry has updated its 2012 KP24 risk assessment - see above
Noted that NEODyS has posted 2012 KP24 as an impact risk - see above
Grabbed MPEC 2012-K53 - Daily Orbit Update - see above