Contents  on 15 June '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 15 June '12

One object reported inside ten LD

There is one object reported traveling inside ten lunar distances (LD) of Earth today. 2012 LT is outbound from 8.31 to 9.80 LD. 2012 LU arrives inside ten LD tomorrow and nothing else is known to approach as close until November.

This report was generated at 1505 UTC with follow-up in today's DOU MPEC for 2012 LU, 2012 LT, and 2012 LA.


Notes: Ten times the distance to the Moon (ten LD) has no astronomical significance but is a useful reporting boundary. Object distances are interpreted by A/CC from JPL Horizons data. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.

NEOCP Activity  on 15 June '12

The MPC's NEO Confirmation Page has 40 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 40 objects listed. Of these, 32 were "one nighters." So far The Tracking News has counted a total of 44 listings on the NEOCP today.

New MPECs  on 15 June '12

Minor Planet Electronic Circulars

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


MPEC 2012-L46 - "23:58 UT" - 2012 LK9


MPEC 2012-L45 - "22:48 UT" - 2012 HR69


MPEC 2012-L44 - "18:55 UT" - Comet P/2006 Y2 = 2012 K9 (Gibbs)


<< OOC on 15 June '12 >> MPEC 2012-L43 - "16:03 UT" - Observations and Orbits of Comets


MPEC 2012-L42 - "14:53 UT" - 2012 LW7


<< DOU on 15 June '12 >>  MPEC 2012-L41 - "06:02 UT" - Daily Orbit Update

Observers  on 15 June '12

A total of 71 observers appear in today's MPECs.

CodeObserver / observatory
J24Altamira Obs. in the Canary Islands, 17 in MPEC 2012-L43 -- C/2012 L2, C/2012 L1, C/2012 K8, C/2012 K5, C/2012 CH17, C/2012 B3, C/2012 A2, C/2011 UF305, C/2011 L4, C/2011 KP36, C/2011 F1, C/2010 R1, C/2006 S3, 257P, 152P, 105P, 29P
H21Astronomical Research Obs. Westfield in Illinois, 18 in MPECs 2012-L41, 2012-L42, 2012-L45 & 2012-L46 -- 2012 LZ1, 2012 LW7, 2012 LU, 2012 LR1, 2012 LK9, 2012 LK2, 2012 LJ2, 2012 LG4, 2012 LF4, 2012 LD1, 2012 LC1, 2012 LA, 2012 KX, 2012 KM45, 2012 JB16, 2012 HR69, 2012 HJ1, 2012 HG31
I47Auger Obs. in Argentina, 5 in MPEC 2012-L43 -- C/2012 K5, C/2011 R1, C/2011 O1, C/2011 L4, C/2009 P1
C77Bernezzo Obs. in Italy, 1 in MPEC 2012-L41 -- 329437
I32Beta Orionis Obs. in Argentina, 1 in MPEC 2012-L43 -- C/2011 L4
C86Blanes Obs. in Spain, 1 in MPEC 2012-L43 -- C/2009 P1
I99Blanquita Obs. in Spain, 4 in MPEC 2012-L43 -- C/2011 L4, C/2011 F1, C/2006 S3, 246P
I72Carpe-Noctem Obs., 4 in MPEC 2012-L43 -- C/2011 UF305, C/2011 F1, C/2009 P1, 29P
703Catalina Sky Survey (CSS) in Arizona, 8 in MPECs 2012-L41 & 2012-L43 -- C/2011 F1, C/2010 R1, 1984 QY1, 68350, 10302, 1685, 152P, 49P
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 2 in MPEC 2012-L41 -- 2012 LP1, 2012 LG4
B92Chinon Obs. in France, 2 in MPEC 2012-L43 -- C/2011 F1, C/2006 S3
J01Cielo Profundo Obs. in Spain, 8 in MPEC 2012-L43 -- C/2012 L3, C/2012 L1, C/2012 K5, C/2012 K1, C/2011 L4, C/2011 F1, C/2006 S3, 29P
821Cordoba Obs. Bosque Alegre Station in Argentina, 1 in MPEC 2012-L46 -- 2012 LK9
958Dax Obs. in France, 11 in MPEC 2012-L43 -- C/2012 K5, C/2012 J1, C/2012 A2, C/2011 L4, C/2011 F1, C/2010 S1, C/2010 R1, C/2009 P1, C/2006 S3, 246P, 29P
G48Doc Greiner Research Obs. Rancho Hildalgo (DGRO-RH) in New Mexico, 3 in MPEC 2012-L41 -- 2012 LZ1, 2012 LU, 2012 LJ2
C74El Teatrillo de Lyra Obs. in Spain, 1 in MPEC 2012-L43 -- C/2006 S3
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2012-L41 -- 2012 LZ1
F65%Tim Lister in southern California via Faulkes Telescope North in Hawaii, 1 in MPEC 2012-L46 -- 2012 LK9
F657Paul Roche in Wales via Faulkes Telescope North in Hawaii, 1 in MPEC 2012-L45 -- 2012 HR69
E100Tim Lister in southern California via Faulkes Telescope South in New South Wales, 1 in MPEC 2012-L42 -- 2012 LW7
E105Richard Miles in England via Faulkes Telescope South in New South Wales, 1 in MPEC 2012-L43 -- 17P
I88Fuensanta de Martos Obs., 1 in MPEC 2012-L43 -- C/2011 L4
E94Gisborne Obs. in New Zealand, 1 in MPEC 2012-L43 -- C/2011 L4
J95Great Shefford Obs. in England, 1 in MPEC 2012-L41 -- 2012 LQ7
511Haute Provence Obs. in Germany, 3 in MPEC 2012-L43 -- C/2012 K5, C/2011 F1, C/2010 R1
D88Hiratsuka Obs. in Japan, 4 in MPEC 2012-L43 -- C/2011 L4, C/2010 R1, C/2006 S3, 152P
H15ISON-NM Obs. in New Mexico, 3 in MPEC 2012-L43 -- C/2012 L3, C/2012 K1, C/2012 J1
585Kiev Comet Station in the Ukraine, 7 in MPEC 2012-L43 -- C/2012 J1, C/2011 L4, C/2011 F1, C/2010 R1, C/2009 P1, C/2006 S3, 29P
695]Mark Trueblood via Kitt Peak Natl. Obs. (KPNO) in Arizona, 7 in MPEC 2012-L41 -- 2012 LR1, 2012 KC6, 2012 JX11, 2012 HG31, 2012 HD20, 2012 CA55, 2012 CA21
695{Tomas Vorobjov in England via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2012-L45 -- 2012 HR69
C40Kuban State Univ. Obs. in Russia, 3 in MPEC 2012-L43 -- C/2011 F1, C/2010 R1, C/2006 S3
D95Kurihara Obs. in Japan, 7 in MPEC 2012-L43 -- C/2012 K5, C/2012 B3, C/2011 UF305, C/2010 R1, C/2009 P1, C/2006 S3, 152P
704LINEAR in New Mexico, 14 in MPECs 2012-L41 & 2012-L43 -- 2012 LD1, C/2012 L3, C/2012 K5, C/2012 J1, C/2010 R1, 2009 KJ22, 85628, 329614, 297274, 162173, 141018, 4034, 246P, 152P
212La Dehesilla Obs. in Spain, 6 in MPEC 2012-L43 -- C/2011 F1, C/2010 R1, C/2009 P1, 246P, 49P, 29P
J38La Vara Obs. in Spain, 8 in MPEC 2012-L43 -- C/2012 K5, C/2011 F1, C/2010 R1, C/2009 P1, C/2006 S3, 246P, 117P, 29P
B33Libbiano Obs. in Italy, 1 in MPEC 2012-L41 -- 2012 LR1
C41MASTER-II Obs. Kislovodsk in Russia, 1 in MPEC 2012-L43 -- C/2012 K1
H01Magdalena Ridge Obs. (MRO) in New Mexico, 4 in MPECs 2012-L41, 2012-L42 & 2012-L46 -- 2012 LW7, 2012 LK9, 2012 KJ11, 101955
C10Maisoncelles Obs. in France, 6 in MPEC 2012-L43 -- C/2012 L2, C/2012 L1, C/2012 K5, C/2011 F1, C/2010 S1, C/2006 S3
5682David Tholen's team on Mauna Kea in Hawaii, 2 in MPECs 2012-L41 & 2012-L43 -- 2011 WQ46, C/2011 L4
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2012-L41 -- 2012 LJ2
152Moletai Obs. in Lithuania, 1 in MPEC 2012-L43 -- C/2009 P1
213Montcabre Obs. in Spain, 5 in MPEC 2012-L43 -- C/2012 K5, C/2012 K1, C/2012 J1, C/2011 F1, 29P
945Monte Deva Obs. in Spain, 6 in MPEC 2012-L43 -- C/2011 UF305, C/2011 L4, C/2011 F1, C/2010 S1, C/2009 P1, C/2006 S3
D18Mt. Guizi Obs., 1 in MPEC 2012-L43 -- C/2009 P1
G84Mt. Lemmon SkyCenter in Arizona, 1 in MPEC 2012-L45 -- 2012 HR69
G96Mt. Lemmon Survey (MLS) in Arizona, 10 in MPECs 2012-L41, 2012-L42 & 2012-L43 -- 2012 LW7, C/2006 S3, 68359, 329614, 297274, 152964, 141018, 100756, 4341, 152P
J93Mt. Tuffley Obs. in England, 1 in MPEC 2012-L43 -- C/2006 S3
E07Murrumbateman Obs. in New South Wales, 15 in MPEC 2012-L43 -- P/2012 K3, C/2012 H2, P/2012 F5, C/2012 C1, C/2012 BJ98, P/2012 B1, C/2011 O1, C/2011 L4, P/2011 FR143, C/2009 P1, 195P, 189P, 123P, 105P, 17P
I89Nerpio Obs. in Italy, 1 in MPEC 2012-L43 -- C/2012 L2
A24New Millennium Obs. in Italy, 4 in MPECs 2012-L41 & 2012-L43 -- 2012 LT7, C/2012 A2, C/2011 F1, C/2010 R1
C47Nonndorf Obs. in Austria, 3 in MPEC 2012-L43 -- C/2011 UF305, C/2011 F1, C/2010 S1
C23Olmen Obs. in Belgium, 14 in MPEC 2012-L43 -- C/2012 L2, C/2012 L1, C/2012 K5, 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
F51Pan-STARRS 1 (PS1) in Hawaii, 9 in MPECs 2012-L41, 2012-L43 & 2012-L46 -- 2012 LK9, C/2012 K5, C/2011 L4, C/2011 F1, 2008 UW5, 153267, 231P, 123P, 105P
B49Paus Obs. in Spain, 1 in MPEC 2012-L43 -- C/2012 K5
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPEC 2012-L43 -- C/2012 L1, C/2012 K5, C/2012 K1, C/2011 F1, C/2010 R1, C/2006 S3, 49P
H06RAS Obs. Mayhill in New Mexico, 5 in MPEC 2012-L43 -- C/2012 K5, C/2011 L4, C/2011 F1, C/2010 R1, C/2006 S3
H06#M. Suzuki via RAS Obs. Mayhill in New Mexico, 2 in MPEC 2012-L43 -- C/2012 L3, C/2012 F6
H068program code 8 via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2012-L41 -- 162173
H06`Erik Bryssinck in Belgium via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2012-L43 -- C/2012 L3
H06|Hidetaka Sato in Japan via RAS Obs. Mayhill in New Mexico, 5 in MPECs 2012-L43 & 2012-L44 -- C/2012 L3, C/2012 L2, P/2012 K9, C/2012 K8, C/2012 BJ98
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 14 in MPEC 2012-L43 -- C/2012 K8, C/2012 J1, C/2011 O1, C/2011 L4, C/2011 KP36, C/2011 J2, C/2010 R1, C/2006 S3, 257P, 246P, 189P, 152P, 123P, 29P
B70Sant Celoni Obs. in Spain, 1 in MPEC 2012-L43 -- C/2011 F1
B74Santa Maria de Montmagastrell Obs. in Spain, 3 in MPEC 2012-L43 -- C/2012 CH17, C/2011 L4, C/2011 KP36
204Schiaparelli Obs. in Italy, 10 in MPECs 2012-L41 & 2012-L43 -- 2012 LC1, 2012 KN18, P/2012 K3, C/2012 K1, C/2012 J1, 2012 HS15, 2012 FM52, 2008 WM64, 1999 OQ3, 1984 QY1
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2012-L41 -- 2012 LZ1, 2012 LT
510Siegen Obs. in Germany, 3 in MPEC 2012-L43 -- C/2011 UF305, C/2011 F1, C/2010 R1
G68Sierra Stars Obs. in northern California, 1 in MPEC 2012-L43 -- C/2010 R1
691Spacewatch 0.9m telescope in Arizona, 3 in MPECs 2012-L41 & 2012-L45 -- 2012 HR69, 329571, 142781
291Spacewatch 1.8m telescope in Arizona, 5 in MPECs 2012-L41, 2012-L42 & 2012-L46 -- 2012 LW7, 2012 LK9, 2012 LK2, 2009 BD2, 2006 OT9
I93St. Pardon de Conques Obs. in France, 1 in MPEC 2012-L41 -- 162854
A71Stixendorf Obs. in Austria, 4 in MPEC 2012-L43 -- C/2012 K5, C/2010 S1, C/2006 S3, 246P
926Tenagra II Obs. in Arizona, 2 in MPEC 2012-L43 -- C/2012 L2, C/2012 J1
B51Vallauris Obs. in France, 1 in MPEC 2012-L43 -- C/2012 L2
C90Vinyols Obs., 1 in MPEC 2012-L43 -- C/2011 L4
B42Vitebsk Obs. in Belarus, 2 in MPEC 2012-L43 -- C/2012 L3, C/2012 K5
C42Xingming Obs. in China, 1 in MPEC 2012-L43 -- C/2011 L4
367Yatsuka Obs. in Japan, 2 in MPEC 2012-L43 -- C/2011 L4, C/2006 S3
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 15 June '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 LR1JPL Sentry15042034-210673.7e-07-4.01-4.180JPL: "Analysis based on 56 observations spanning 5.5598 days (2012-Jun-09.40456 to 2012-Jun-14.96431)." Diameter approximately 0.270 km. from mean, weighted H=20.5.
NEODyS15042057-208975.91e-07-3.84-3.880NEODyS: "Based on 56 optical observations (of which 0 are rejected as outliers) from 2012-06-09.405 to 2012-06-14.965."

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 15 June '12

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

2359Grabbed MPEC 2012-L45 - 2012 HR69 - see above
Grabbed MPEC 2012-L46 - 2012 LK9 - see above
2001Grabbed MPEC 2012-L44 - Comet P/2006 Y2 = 2012 K9 (Gibbs) - see above
1619Grabbed MPEC 2012-L43 - Observations and Orbits of Comets - see above
1505Generated Traffic Report
1504Noted that JPL Sentry has updated its 2012 LR1 risk assessment - see above
Noted that NEODyS has updated its 2012 LR1 risk assessment - see above
Grabbed MPEC 2012-L41 - Daily Orbit Update - see above
Grabbed MPEC 2012-L42 - 2012 LW7 - see above