Contents  on 21 June '13

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 21 June '13

No objects reported inside ten LD

There are no objects reported to be within ten lunar distances (LD) of our planet today, and none known to be coming inside until late July.

This report was generated at 1248 UTC.



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.

Radar Astrometry  on 21 June '13

Radar observation of two objects

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


Data update noted at 2318 UTC when the database was dated 21 June

NEOCP Activity  on 21 June '13

The MPC's NEO Confirmation Page has 19 listings

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

New MPECs  on 21 June '13

Minor Planet Electronic Circulars

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


MPEC 2013-M32 - "20:59 UT" - 2013 MD6


<< OOC on 21 June '13 -- MPEC 2013-M31 - "16:45 UT" - Observations and Orbits of Comets


MPEC 2013-M30 - "13:40 UT" - 2010 NG1


MPEC 2013-M29 - "13:14 UT" - 2013 EW128


MPEC 2013-M28 - "13:08 UT" - 2013 MZ5


MPEC 2013-M27 - "13:04 UT" - 2013 MY5


MPEC 2013-M26 - "13:00 UT" - 2013 MX5


<< DOU on 21 June '13 >>  MPEC 2013-M25 - "06:09 UT" - Daily Orbit Update

Observers  on 21 June '13

A total of 84 observers appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 8 in MPEC 2013-M31 -- C/2013 G7, C/2013 G2, C/2012 S3, C/2012 S1, C/2012 K6, P/2012 B1, C/2006 S3, 257P
Z74Amanecer de Arrakis Obs., 3 in MPEC 2013-M31 -- C/2012 F6, C/2011 L4, 29P
251Arecibo in Puerto Rico, 2 in radar -- 2013 LL25, 2013 LC7
H21Astronomical Research Obs. Westfield in Illinois, 10 in MPECs 2013-M25 & 2013-M26 -- 2013 MX5, 2013 LN31, 2013 LK31, 2013 LH29, 2013 LE16, 2013 LC2, 2013 FY13, 2009 SU19, 11405, 3752
B88Bigmuskie Obs. in Italy, 1 in MPEC 2013-M25 -- 2013 LN31
I99Blanquita Obs. in Spain, 6 in MPEC 2013-M31 -- C/2013 E2, C/2012 K1, C/2012 F6, C/2011 L4, C/2010 S1, 29P
B59Borken Obs. in Germany, 1 in MPEC 2013-M31 -- C/2010 S1
B96Brixiis Obs. in Belgium, 1 in MPEC 2013-M31 -- C/2011 R1
215Buchloe Obs. in Germany, 2 in MPEC 2013-M31 -- P/2013 J2, C/2013 F3
G36CASADO in Spain, 4 in MPEC 2013-M31 -- C/2012 K1, C/2012 F6, C/2010 S1, 49P
W96Campo Catino Austral Obs. (CAO) in Chile, 23 in MPEC 2013-M31 -- C/2013 J3, P/2013 J2, C/2013 H2, C/2013 G9, C/2013 G7, C/2013 G6, C/2013 G2, C/2013 E2, C/2012 S3, C/2012 F6, P/2012 F2, C/2012 CH17, C/2011 F1, C/2006 S3, 257P, 246P, 152P, 125P, 117P, 78P, 74P, 29P, 17P
I72Carpe Noctem Obs., 14 in MPEC 2013-M31 -- C/2013 F3, C/2012 X1, C/2012 S3, C/2012 K1, C/2012 F6, P/2012 B1, C/2011 R1, C/2011 L4, C/2011 J2, C/2010 S1, C/2006 S3, 117P, 63P, 29P
703Catalina Sky Survey (CSS) in Arizona, 15 in MPECs 2013-M25, 2013-M29 & 2013-M31 -- C/2013 L2, C/2013 J6, P/2013 J2, C/2013 H1, C/2013 G7, 2013 EW128, P/2013 EV9, C/2012 S3, C/2012 K6, 85989, 274855, 189630, 280P, 257P, 175P
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 4 in MPECs 2013-M26, 2013-M27, 2013-M28 & 2013-M32 -- 2013 MZ5, 2013 MY5, 2013 MX5, 2013 MD6
A77Chante-Perdrix Obs. in France, 11 in MPEC 2013-M31 -- C/2013 J6, C/2013 H1, C/2013 G9, C/2013 G6, C/2012 K6, C/2012 K1, C/2012 F6, C/2011 L4, C/2006 S3, 117P, 29P
J01Cielo Profundo Obs. in Spain, 5 in MPEC 2013-M31 -- C/2013 F3, C/2012 S3, C/2012 K1, C/2012 F6, C/2011 L4
106Crni Vrh Obs. in Slovenia, 2 in MPECs 2013-M26 & 2013-M29 -- 2013 MX5, 2013 EW128
W841program code 1 via DECam in Chile, 2 in MPEC 2013-M31 -- C/2013 G3, 103P
K20Danastro Obs., 1 in MPEC 2013-M31 -- C/2012 K1
G37Discovery Channel Telescope in Arizona, 1 in MPEC 2013-M25 -- 141531
J19El Maestrat Obs. in Spain, 1 in MPEC 2013-M31 -- C/2012 F6
I57Elche Obs., 3 in MPEC 2013-M31 -- C/2006 S3, 98P, 29P
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2013-M31 -- 29P
F65$Ernesto Guido in Italy via Faulkes Telescope North in Hawaii, 1 in MPEC 2013-M29 -- 2013 EW128
F657Paul Roche in Wales via Faulkes Telescope North in Hawaii, 2 in MPECs 2013-M26 & 2013-M29 -- 2013 MX5, 2013 EW128
E105Richard Miles in England via Faulkes Telescope South in New South Wales, 1 in MPEC 2013-M31 -- 17P
K57Fiore Obs., 3 in MPECs 2013-M26, 2013-M29 & 2013-M32 -- 2013 MX5, 2013 MD6, 2013 EW128
157Frasso Sabino Obs. in Italy, 3 in MPEC 2013-M31 -- C/2013 L2, P/2013 J2, C/2013 G8
C73Galati Obs. in Romania, 6 in MPECs 2013-M25, 2013-M29 & 2013-M31 -- 2013 ML3, 2013 LN31, 2013 LK31, 2013 EW128, C/2012 F6, C/2011 L4
372Geisei Obs. in Japan, 3 in MPEC 2013-M31 -- C/2013 L2, P/2013 J2, C/2013 E2
203GiaGa Obs. in Italy, 1 in MPEC 2013-M31 -- C/2012 K1
B83Gieres Obs. in France, 3 in MPEC 2013-M31 -- C/2012 S3, C/2012 K1, C/2010 S1
511Haute Provence Obs. in Germany, 4 in MPEC 2013-M31 -- C/2013 L2, C/2013 F3, C/2011 L4, 29P
C43Hoyerswerda Obs. in Germany, 1 in MPEC 2013-M31 -- C/2011 KP36
K35Huenfelden Obs., 1 in MPEC 2013-M31 -- C/2011 L4
A21Irmtraut Obs. in Germany, 1 in MPEC 2013-M31 -- C/2011 L4
585Kiev Comet Station in the Ukraine, 1 in MPEC 2013-M31 -- C/2011 R1
695^Spacewatch via Kitt Peak Natl. Obs. (KPNO) in Arizona, 2 in MPEC 2013-M31 -- P/2010 JC81, C/2010 D3
168Kourovskaya Obs. in Russia, 2 in MPEC 2013-M31 -- P/2012 B1, C/2011 J2
D95Kurihara Obs. in Japan, 17 in MPEC 2013-M31 -- C/2013 G6, C/2013 F3, C/2013 E2, C/2012 X1, C/2012 S1, C/2012 F6, P/2012 B1, C/2011 R1, C/2011 L4, C/2011 J2, C/2010 S1, C/2010 R1, C/2006 S3, 274P, 117P, 63P, 29P
W85LCOGT Cerro Tololo A in Chile, 1 in MPEC 2013-M25 -- 2002 NV16
K91LCOGT Sutherland A in South Africa, 3 in MPECs 2013-M27, 2013-M28 & 2013-M32 -- 2013 MZ5, 2013 MY5, 2013 MD6
J38La Vara Obs. in Spain, 8 in MPEC 2013-M31 -- C/2012 K1, C/2012 F6, C/2011 R1, C/2011 L4, C/2011 J2, 117P, 63P, 29P
C01Lohrmann Obs. in Germany, 2 in MPEC 2013-M25 -- 163249, 137199
C10Maisoncelles Obs. in France, 4 in MPEC 2013-M31 -- C/2013 L2, C/2013 J6, C/2013 J5, 29P
A02Masia Cal Maciarol Modul 8 (MCM8) in Spain, 4 in MPEC 2013-M31 -- C/2012 K1, C/2012 F6, C/2010 S1, 29P
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2013-M30 -- 2010 NG1
568;program code ";" on Mauna Kea in Hawaii, 1 in MPEC 2013-M25 -- 2011 BT15
213Montcabre Obs. in Spain, 6 in MPEC 2013-M31 -- C/2013 F3, C/2012 K1, C/2012 F6, C/2010 S1, 98P, 29P
945Monte Deva Obs. in Spain, 5 in MPEC 2013-M31 -- C/2012 X1, C/2012 K6, C/2012 F6, C/2011 R1, C/2011 L4
C91Montevenere Obs., 2 in MPEC 2013-M31 -- C/2013 H1, C/2012 K1
900Moriyama Obs. in Japan, 3 in MPEC 2013-M31 -- 117P, 98P, 29P
474Mt. John Obs. in New Zealand, 9 in MPEC 2013-M31 -- P/2013 J2, P/2013 G4, C/2013 G1, C/2013 E1, C/2013 D1, C/2011 F1, P/2011 C2, C/2009 P1, 278P
G96Mt. Lemmon Survey (MLS) in Arizona, 11 in MPECs 2013-M25, 2013-M27, 2013-M29 & 2013-M31 -- 2013 MY5, C/2013 L2, P/2013 J2, C/2013 F3, 2013 EW128, 2010 RT11, 2010 NJ1, 2007 XC10, 256P, 169P, 102P
E07Murrumbateman Obs. in New South Wales, 13 in MPEC 2013-M31 -- C/2013 J3, C/2013 G7, C/2013 G6, C/2013 G1, C/2013 F3, C/2013 D1, C/2012 K6, 246P, 152P, 117P, 91P, 29P, 17P
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2013-M25 -- 338292
C47Nonndorf Obs. in Austria, 5 in MPEC 2013-M31 -- C/2012 K1, C/2012 F6, C/2011 L4, C/2010 S1, 98P
C23Olmen Obs. in Belgium, 14 in MPEC 2013-M31 -- C/2013 F3, C/2013 E2, C/2012 S3, C/2012 F6, P/2012 B1, C/2012 A2, C/2011 R1, C/2011 L4, C/2011 J2, C/2010 S1, C/2010 R1, C/2006 S3, 175P, 29P
I41Palomar Transient Factory (PTF) in southern California, 2 in MPECs 2013-M29 & 2013-M31 -- 2013 EW128, 256P
F51Pan-STARRS 1 (PS1) in Hawaii, 10 in MPECs 2013-M25, 2013-M28, 2013-M31 & 2013-M32 -- 2013 MZ5, 2013 MD6, C/2012 E1, 2009 WE253, 2009 NE, 1993 FS, 307070, 136745, 169P, 49P
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 11 in MPEC 2013-M31 -- C/2013 L2, C/2013 H1, C/2013 G7, C/2013 F3, C/2012 K1, C/2011 R1, C/2011 L4, C/2010 S1, C/2006 S3, 117P, 29P
941Pla D'Arguines Obs. in Spain, 8 in MPEC 2013-M31 -- C/2013 J6, C/2013 H1, C/2013 F3, C/2012 S3, C/2012 OP, C/2012 K8, C/2012 K1, C/2012 F6
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 13 in MPECs 2013-M25 & 2013-M31 -- 2013 KL6, C/2013 G7, C/2013 G1, C/2013 E2, C/2012 K6, C/2012 K1, C/2012 C1, C/2006 S3, 246P, 117P, 98P, 63P, 29P
939Rodeno Obs. in Spain, 5 in MPEC 2013-M31 -- C/2013 E2, C/2012 K1, C/2012 F6, P/2012 B1, C/2010 S1
C95SATINO-1 in France, 1 in MPEC 2013-M31 -- C/2011 L4
461SZTE Asteroid Program in Hungary, 4 in MPEC 2013-M31 -- C/2013 L2, P/2013 J2, C/2013 G9, C/2013 G8
233San Vito Obs. in Italy, 5 in MPEC 2013-M31 -- C/2012 K1, C/2011 R1, C/2006 S3, 117P, 98P
H36Sandlot Obs. in Kansas, 2 in MPECs 2013-M26 & 2013-M29 -- 2013 MX5, 2013 EW128
B70Sant Celoni Obs. in Spain, 4 in MPEC 2013-M31 -- C/2012 K1, C/2012 F6, C/2011 L4, C/2010 S1
B74Santa Maria de Montmagastrell Obs. in Spain, 4 in MPEC 2013-M31 -- C/2013 L2, C/2013 G1, C/2011 R1, C/2011 L4
510Siegen Obs. in Germany, 1 in MPEC 2013-M31 -- C/2011 L4
G402program code 2 via Slooh.com Canary Islands Obs. in the Canary Islands, 2 in MPEC 2013-M31 -- C/2012 K1, 29P
691Spacewatch 0.9m telescope in Arizona, 4 in MPEC 2013-M31 -- C/2012 OP, C/2012 LP26, C/2012 K1, 169P
291Spacewatch 1.8m telescope in Arizona, 2 in MPECs 2013-M26 & 2013-M27 -- 2013 MY5, 2013 MX5
C36Starry Wanderer Obs. in Belarus, 3 in MPEC 2013-M31 -- C/2012 K1, C/2012 F6, C/2010 S1
A71Stixendorf Obs. in Austria, 5 in MPEC 2013-M31 -- C/2013 E2, C/2012 K1, C/2012 F6, C/2011 R1, C/2011 L4
I66Taurus Australis Obs. in Brazil, 4 in MPEC 2013-M31 -- C/2013 E2, C/2011 R1, C/2006 S3, 246P
C35Terrassa Obs., 3 in MPEC 2013-M31 -- C/2011 L4, C/2010 S1, 117P
A92Urseanu Obs. in Romania, 1 in MPEC 2013-M25 -- 285263
H47Vicksburg Obs. in Mississippi, 7 in MPEC 2013-M31 -- C/2013 F3, C/2012 S3, C/2012 K1, C/2010 S1, C/2006 S3, 117P, 29P
C90Vinyols Obs., 3 in MPEC 2013-M31 -- C/2011 L4, C/2011 J2, 29P
718Wiggins Obs. in Utah, 3 in MPECs 2013-M25 & 2013-M29 -- 2013 EW128, 163249, 7888
367Yatsuka Obs. in Japan, 1 in MPEC 2013-M31 -- C/2011 J2
J08Zonalunar Obs. in Spain, 1 in MPEC 2013-M31 -- C/2012 F6
H06iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2013-M29 -- 2013 EW128
I89iTelescope Obs. Nerpio in Spain, 2 in MPECs 2013-M29 & 2013-M31 -- 2013 EW128, C/2011 L4
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 21 June '13

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
2013 ML3JPL Sentry1247210946.1e-07-5.17-5.600JPL: "Analysis based on 45 observations spanning 1.5928 days (2013-Jun-19.27039 to 2013-Jun-20.8632)." Diameter approximately 0.130 km. from mean, weighted H=22.1.
NEODyS12472091-210934.27e-07-5.32-5.420NEODyS: "Based on 48 optical observations (of which 3 are rejected as outliers) from 2013-06-19.271 to 2013-06-20.864."

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 21 June '13

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

2318Noted Radar Astrometry database update - see above
2159Grabbed MPEC 2013-M32 - 2013 MD6 - see above
1802Grabbed MPEC 2013-M26 - 2013 MX5 - see above
Grabbed MPEC 2013-M27 - 2013 MY5 - see above
Grabbed MPEC 2013-M28 - 2013 MZ5 - see above
Grabbed MPEC 2013-M29 - 2013 EW128 - see above
Grabbed MPEC 2013-M30 - 2010 NG1 - see above
Grabbed MPEC 2013-M31 - Observations and Orbits of Comets - see above
1248Generated Traffic Report
1247Noted that JPL Sentry has updated its 2013 ML3 risk assessment - see above
Noted that NEODyS has posted 2013 ML3 as an impact risk - see above
Grabbed MPEC 2013-M25 - Daily Orbit Update - see above