Contents  on 17 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 17 June '13

No objects reported inside ten LD

No asteroids are reported traveling inside ten lunar distances (LD) of our planet today and none are known to be approaching until late July.

This report was generated at 1327 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 17 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 1932 UTC when the database was dated 17 June


Data update noted at 2031 UTC when the database was dated 17 June

NEOCP Activity  on 17 June '13

The MPC's NEO Confirmation Page has 7 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had seven objects listed. Of these, five were "one nighters." So far The Tracking News has counted a total of 30 listings on the NEOCP today.

New MPECs  on 17 June '13

Minor Planet Electronic Circulars

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


MPEC 2013-M17 - "23:26 UT" - 2012 XD112


MPEC 2013-M16 - "23:22 UT" - 2012 VF37


MPEC 2013-M15 - "23:18 UT" - 2012 TQ78


MPEC 2013-M14 - "23:15 UT" - 2012 AU10


MPEC 2013-M13 - "23:11 UT" - 2011 QF3


MPEC 2013-M12 - "23:08 UT" - 2011 PT1


MPEC 2013-M11 - "23:04 UT" - 2010 KK127


MPEC 2013-M10 - "23:01 UT" - 2002 MS3


MPEC 2013-M09 - "22:26 UT" - 2011 BT15


MPEC 2013-M08 - "13:58 UT" - 2013 LN31


MPEC 2013-M07 - "13:55 UT" - 2013 LM31


MPEC 2013-M06 - "13:51 UT" - 2013 LL31


MPEC 2013-M05 - "13:47 UT" - 2013 LK31


<< DOU on 17 June '13 >>  MPEC 2013-M04 - "06:08 UT" - Daily Orbit Update

Observers  on 17 June '13

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

CodeObserver / observatory
B17AZT-8 Evpatoria in the Ukraine, 3 in MPEC 2013-M04 -- 7753, 1866, 1627
E23Arcadia Obs. in New South Wales, 2 in MPECs 2013-M07 & 2013-M08 -- 2013 LN31, 2013 LM31
251Arecibo in Puerto Rico, 2 in radar -- 2013 JR28, 163249
Z95Astronomy for All Remote Obs., 1 in MPEC 2013-M08 -- 2013 LN31
C77Bernezzo Obs. in Italy, 1 in MPEC 2013-M08 -- 2013 LN31
B88Bigmuskie Obs. in Italy, 1 in MPEC 2013-M04 -- 2013 KN6
300Bisei Spaceguard Center in Japan, 3 in MPECs 2013-M05, 2013-M07 & 2013-M08 -- 2013 LN31, 2013 LM31, 2013 LK31
703Catalina Sky Survey (CSS) in Arizona, 5 in MPECs 2013-M04, 2013-M05 & 2013-M07 -- 2013 LM31, 2013 LK31, 2013 JK22, 2005 MO13, 251722
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 4 in MPECs 2013-M07, 2013-M12, 2013-M14 & 2013-M15 -- 2013 LM31, 2012 TQ78, 2012 AU10, 2011 PT1
106Crni Vrh Obs. in Slovenia, 2 in MPECs 2013-M06 & 2013-M08 -- 2013 LN31, 2013 LL31
I39Cruz del Sur Obs. in Argentina, 1 in MPEC 2013-M07 -- 2013 LM31
J19El Maestrat Obs. in Spain, 1 in MPEC 2013-M04 -- 66008
006Fabra Obs. in Spain, 3 in MPEC 2013-M04 -- 285263, 163249, 137199
595Farra d'Isonzo Obs. in Italy, 3 in MPECs 2013-M05, 2013-M07 & 2013-M08 -- 2013 LN31, 2013 LM31, 2013 LK31
157Frasso Sabino Obs. in Italy, 5 in MPECs 2013-M04 & 2013-M08 -- 2013 LN31, 2013 LB2, 2013 JR28, 2013 GZ79, 2013 GY68
253Goldstone DSS-14 70m antenna in southern California, 1 in radar -- 2013 JR28
695]Mark Trueblood via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2013-M09 -- 2011 BT15
695^Spacewatch via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2013-M11 -- 2010 KK127
844Los Molinos Obs. in Uruguay, 2 in MPEC 2013-M04 -- 163364, 7753
C41MASTER-II Obs. Kislovodsk in Russia, 1 in MPEC 2013-M04 -- 66008
932McCarthy Obs. in Connecticut, 2 in MPECs 2013-M05 & 2013-M08 -- 2013 LN31, 2013 LK31
711McDonald Obs. in Texas, 2 in MPECs 2013-M13 & 2013-M16 -- 2012 VF37, 2011 QF3
B67Mirasteilas Obs. in Switzerland, 2 in MPEC 2013-M04 -- 2013 LC2, 2013 JR28
213Montcabre Obs. in Spain, 1 in MPEC 2013-M04 -- 285263
474Mt. John Obs. in New Zealand, 2 in MPECs 2013-M12 & 2013-M14 -- 2012 AU10, 2011 PT1
G96Mt. Lemmon Survey (MLS) in Arizona, 6 in MPECs 2013-M04, 2013-M05, 2013-M06, 2013-M07 & 2013-M08 -- 2013 LV28, 2013 LN31, 2013 LM31, 2013 LL31, 2013 LK31, 2005 JA22
C47Nonndorf Obs. in Austria, 2 in MPECs 2013-M05 & 2013-M08 -- 2013 LN31, 2013 LK31
C23Olmen Obs. in Belgium, 1 in MPEC 2013-M04 -- 285263
I41Palomar Transient Factory in southern California, 1 in MPEC 2013-M04 -- 1866
F51Pan-STARRS 1 (PS1) in Hawaii, 2 in MPEC 2013-M04 -- 2008 OX2, 7350
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 2 in MPECs 2013-M07 & 2013-M08 -- 2013 LN31, 2013 LM31
C95SATINO-1 in France, 1 in MPEC 2013-M04 -- 2013 KN6
104San Marcello Pistoiese Obs. in Italy, 4 in MPECs 2013-M04, 2013-M05, 2013-M07 & 2013-M08 -- 2013 LN31, 2013 LM31, 2013 LK31, 163249
233San Vito Obs. in Italy, 3 in MPEC 2013-M04 -- 137170, 7888, 7753
204Schiaparelli Obs. in Italy, 4 in MPECs 2013-M05, 2013-M06, 2013-M07 & 2013-M08 -- 2013 LN31, 2013 LM31, 2013 LL31, 2013 LK31
E12Siding Spring Survey in New South Wales, 1 in MPEC 2013-M07 -- 2013 LM31
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2013-M06 -- 2013 LL31
291Spacewatch 1.8m telescope in Arizona, 7 in MPECs 2013-M04, 2013-M06, 2013-M10, 2013-M13, 2013-M16 & 2013-M17 -- 2013 LZ28, 2013 LL31, 2013 KZ1, 2012 XD112, 2012 VF37, 2011 QF3, 2002 MS3
I93St. Pardon de Conques Obs. in France, 2 in MPECs 2013-M05 & 2013-M08 -- 2013 LN31, 2013 LK31
673!program code "!" (10) via Table Mtn. Obs. in southern California, 1 in MPEC 2013-M05 -- 2013 LK31
H47Vicksburg Obs. in Mississippi, 1 in MPEC 2013-M04 -- 285263
718Wiggins Obs. in Utah, 2 in MPEC 2013-M04 -- 163249, 7888
198Wildberg Obs. in Germany, 1 in MPEC 2013-M05 -- 2013 LK31
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 17 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 LZ28JPL Sentry13222052-2089121.3e-06-4.46-4.510JPL: "Analysis based on 44 observations spanning 3.0488 days (2013-Jun-13.25363 to 2013-Jun-16.30247)." Diameter approximately 0.110 km. from mean, weighted H=22.4.
2011 BT15JPL Sentry2359R E M O V E DJPL: Risk listing removed at 2356 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 17 June '13

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

2359Noted that JPL Sentry has removed 2011 BT15 as an impact risk - see above
Grabbed MPEC 2013-M15 - 2012 TQ78 - see above
Grabbed MPEC 2013-M16 - 2012 VF37 - see above
Grabbed MPEC 2013-M17 - 2012 XD112 - see above
2316Grabbed MPEC 2013-M09 - 2011 BT15 - see above
Grabbed MPEC 2013-M10 - 2002 MS3 - see above
Grabbed MPEC 2013-M11 - 2010 KK127 - see above
Grabbed MPEC 2013-M12 - 2011 PT1 - see above
Grabbed MPEC 2013-M13 - 2011 QF3 - see above
Grabbed MPEC 2013-M14 - 2012 AU10 - see above
2031Noted Radar Astrometry database update - see above
1932Noted Radar Astrometry database update - see above
1533Grabbed MPEC 2013-M05 - 2013 LK31 - see above
Grabbed MPEC 2013-M06 - 2013 LL31 - see above
Grabbed MPEC 2013-M07 - 2013 LM31 - see above
Grabbed MPEC 2013-M08 - 2013 LN31 - see above
1327Generated Traffic Report
1322Noted that JPL Sentry has updated its 2013 LZ28 risk assessment - see above
Grabbed MPEC 2013-M04 - Daily Orbit Update - see above