Contents  on 9 August '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 9 August '13

Three objects reported inside ten LD

Three visitors are reported to be within a radius of ten lunar distances (LD) from our home world today. Risk-listed intruder 2013 PS13 was inside the Earth-Moon system for ten-plus hours this morning, coming to 0.53 LD from Earth at 0520 UT. Out further, intruder 2013 PJ10 is outbound from 7.60 to 9.12 LD, and radar target 277475 2005 WK4 came its closest to Earth on this passage, reaching 8.06 LD at 0501 UT.

This report was generated at 1415 UTC with follow-up in today's DOU MPEC for 2013 PS13, 2013 PJ10, 277475 2005 WK4, and departed 2013 PG10.



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 9 August '13

The MPC's NEO Confirmation Page has 27 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 27 objects listed. Of these, ten were "one nighters." So far The Tracking News has counted a total of 29 listings on the NEOCP today.

New MPECs  on 9 August '13

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 2013-P53 - "22:11 UT" - 2013 PW14


<< OOC on 9 Aug. '13 >> MPEC 2013-P52 - "20:47 UT" - Observations and Orbits of Comets


MPEC 2013-P51 - "12:11 UT" - 2012 DJ4


<< DOU on 9 Aug. '13 >>  MPEC 2013-P50 - "06:03 UT" - Daily Orbit Update


MPEC 2013-P49 - "02:54 UT" - 2008 HE66


MPEC 2013-P48 - "01:39 UT" - 2007 SW2

Observers  on 9 August '13

A total of 88 observers appear in today's MPECs.

CodeObserver / observatory
Z74Amanecer de Arrakis Obs., 2 in MPEC 2013-P52 -- C/2012 F6, C/2011 L4
H21Astronomical Research Obs. Westfield in Illinois, 10 in MPEC 2013-P50 -- 2013 OU3, 2013 OO5, 2013 OO2, 2013 OH, 2013 OG, 2013 NX23, 2013 NK, 2013 NH10, 2013 MY6, 140039
B75Betelgeuse Station in Italy, 4 in MPEC 2013-P52 -- C/2012 S3, C/2012 K1, C/2012 F6, C/2010 S1
C86Blanes Obs. in Spain, 1 in MPEC 2013-P52 -- C/2010 S1
I99Blanquita Obs. in Spain, 7 in MPEC 2013-P52 -- P/2013 J2, C/2012 S3, C/2012 K1, C/2012 F6, C/2011 L4, C/2010 S1, 98P
B96Brixiis Obs. in Belgium, 2 in MPEC 2013-P52 -- C/2012 S1, C/2011 L4
215Buchloe Obs. in Germany, 7 in MPEC 2013-P52 -- C/2013 G2, C/2012 LP26, C/2012 K8, C/2011 R1, C/2011 L4, C/2008 S3, 26P
W96Campo Catino Austral Obs. (CAO) in Chile, 19 in MPEC 2013-P52 -- P/2013 P1, P/2013 O2, P/2013 J2, C/2013 G8, C/2013 G7, C/2013 G1, C/2013 E2, C/2011 O1, C/2011 KP36, C/2011 F1, C/2009 F4, 282P, 178P, 154P, 98P, 63P, 29P, 17P, 4P
I72Carpe Noctem Obs., 9 in MPEC 2013-P52 -- C/2012 S3, C/2012 K1, C/2012 F6, C/2011 L4, C/2011 J2, C/2010 S1, 257P, 117P, 98P
160Castelmartini Obs. in Italy, 5 in MPEC 2013-P52 -- P/2013 J2, C/2012 S3, C/2012 K1, C/2011 L4, C/2010 S1
703Catalina Sky Survey (CSS) in Arizona, 4 in MPEC 2013-P52 -- P/2013 P1, P/2013 J2, C/2008 S3, 152P
470Ceccano Obs. in Italy, 1 in MPEC 2013-P50 -- 2013 PS13
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2013-P53 -- 2013 PW14
A58Chalandray-Canotiers Obs. in France, 1 in MPEC 2013-P52 -- C/2012 K1
A77Chante-Perdrix Obs. in France, 9 in MPEC 2013-P52 -- C/2012 S3, C/2012 K1, C/2012 F6, P/2012 F2, C/2011 L4, C/2010 S1, C/2008 S3, 98P, 26P
B92Chinon Obs. in France, 3 in MPEC 2013-P52 -- C/2012 K1, C/2011 L4, C/2010 S1
J01Cielo Profundo Obs. in Spain, 8 in MPEC 2013-P52 -- P/2013 J2, C/2013 E2, C/2012 S3, C/2012 F6, C/2011 L4, 257P, 84P, 4P
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2013-P52 -- C/2010 S1
B50Corner Obs. in Germany, 1 in MPEC 2013-P52 -- C/2010 S1
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2013-P52 -- C/2012 F6
K20Danastro Obs., 2 in MPEC 2013-P52 -- C/2013 F3, C/2010 S1
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 2 in MPEC 2013-P52 -- P/2013 P1, 125P
J19El Maestrat Obs. in Spain, 4 in MPEC 2013-P52 -- C/2012 S3, C/2012 K1, C/2010 S1, 257P
I57Elche Obs., 4 in MPEC 2013-P52 -- C/2012 K1, C/2012 F6, C/2011 L4, C/2010 S1
G32Elena Remote Obs., 1 in MPEC 2013-P52 -- P/2013 N3
Z81Estrella de Mar Obs., 3 in MPEC 2013-P50 -- 2013 PV6, 277475, 4581
006Fabra Obs. in Spain, 1 in MPEC 2013-P52 -- C/2011 L4
157Frasso Sabino Obs. in Italy, 1 in MPEC 2013-P52 -- P/2013 J2
372Geisei Obs. in Japan, 2 in MPEC 2013-P52 -- C/2013 N4, C/2013 E2
203GiaGa Obs. in Italy, 2 in MPEC 2013-P52 -- C/2012 K1, C/2010 S1
E94Gisborne Obs. in New Zealand, 3 in MPEC 2013-P52 -- P/2013 J2, C/2012 S3, C/2011 F1
J95Great Shefford Obs. in England, 1 in MPEC 2013-P52 -- C/2013 N4
458Guadarrama Obs. in Spain, 1 in MPEC 2013-P52 -- C/2012 K1
B86Hagen Obs. in Germany, 1 in MPEC 2013-P50 -- 2013 PS13
511Haute Provence Obs. in Germany, 2 in MPEC 2013-P52 -- C/2012 F6, P/2012 F2
987Isle of Man Obs. on the Isle of Man, 2 in MPEC 2013-P52 -- C/2012 S3, C/2012 K1
C32Ka-Dar Obs. TAU Station in Russia, 9 in MPEC 2013-P52 -- P/2013 J2, C/2013 G9, C/2013 G8, C/2013 G2, C/2012 OP, P/2012 F2, C/2011 KP36, 91P, 4P
Q24Katori Obs., 2 in MPEC 2013-P52 -- C/2013 E2, C/2010 S1
585Kiev Comet Station in the Ukraine, 6 in MPEC 2013-P52 -- P/2013 J2, C/2012 S3, C/2012 K1, C/2011 L4, C/2010 S1, 273P
D95Kurihara Obs. in Japan, 5 in MPEC 2013-P52 -- C/2013 G2, C/2012 K1, C/2011 R1, 98P, 26P
W86LCOGT Cerro Tololo B in Chile, 1 in MPEC 2013-P52 -- P/2013 O1
950.Ovidiu Vaduvescu via La Palma in the Canary Islands, 1 in MPEC 2013-P49 -- 2008 HE66
J38La Vara Obs. in Spain, 6 in MPEC 2013-P52 -- C/2012 K1, C/2012 F6, C/2011 L4, C/2010 S1, 117P, 4P
130Lumezzane Obs. in Italy, 5 in MPEC 2013-P52 -- C/2013 L2, C/2013 G2, C/2013 F3, C/2011 L4, 98P
P25MPC code P25, 3 in MPEC 2013-P52 -- C/2012 S3, C/2011 L4, C/2010 S1
C10Maisoncelles Obs. in France, 9 in MPEC 2013-P52 -- C/2013 P2, P/2013 P1, C/2013 N4, C/2012 S3, C/2012 F6, C/2012 A2, C/2011 L4, C/2010 S1, C/2008 S3
5682David Tholen's team on Mauna Kea in Hawaii, 6 in MPECs 2013-P48, 2013-P49, 2013-P50 & 2013-P51 -- 2013 PG10, 2013 PC7, 2013 PA7, 2012 DJ4, 2008 HE66, 2007 SW2
118Modra Obs. in Slovakia, 1 in MPEC 2013-P52 -- C/2012 K8
152Moletai Obs. in Lithuania, 2 in MPEC 2013-P52 -- C/2013 N4, C/2011 L4
945Monte Deva Obs. in Spain, 4 in MPEC 2013-P52 -- C/2012 K1, C/2012 F6, C/2011 L4, C/2010 S1
900Moriyama Obs. in Japan, 2 in MPEC 2013-P52 -- C/2011 L4, C/2010 S1
474Mt. John Obs. in New Zealand, 3 in MPECs 2013-P50, 2013-P52 & 2013-P53 -- 2013 PW14, C/2013 O3, 2009 SQ172
J93Mt. Tuffley Obs. in England, 2 in MPEC 2013-P52 -- C/2011 L4, C/2010 S1
E07Murrumbateman Obs. in New South Wales, 3 in MPEC 2013-P52 -- 282P, 246P, 17P
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2013-P50 -- 2013 BE27
C47Nonndorf Obs. in Austria, 10 in MPEC 2013-P52 -- P/2013 J2, C/2013 E2, C/2012 S3, C/2012 K8, C/2012 K1, C/2012 F6, C/2012 A2, C/2011 L4, C/2010 S1, 290P
C23Olmen Obs. in Belgium, 21 in MPEC 2013-P52 -- P/2013 J2, C/2013 F3, C/2013 E2, C/2012 S4, C/2012 S3, C/2012 K8, C/2012 K1, C/2012 F6, P/2012 F2, C/2012 A2, C/2011 R1, C/2011 L4, C/2011 KP36, C/2010 S1, C/2008 S3, C/2006 S3, 117P, 102P, 98P, 26P, 4P
B69Owls & Ravens Obs. in Germany, 1 in MPEC 2013-P52 -- C/2012 F6
C27Pallerols Obs. in Spain, 2 in MPEC 2013-P52 -- P/2013 J2, 257P
I41Palomar Transient Factory (PTF) in southern California, 4 in MPECs 2013-P50 & 2013-P52 -- 2013 OO5, C/2012 S4, 359369, 119P
F51Pan-STARRS 1 (PS1) in Hawaii, 9 in MPECs 2013-P50, 2013-P52 & 2013-P53 -- 2013 PW14, 2013 PS13, 2013 GY68, 2010 UX95, 2009 QO5, 231792, 200840, 171486, 117P
A32Panker Obs. in Germany, 15 in MPEC 2013-P52 -- C/2013 L2, C/2013 G9, C/2013 F3, C/2013 F1, C/2012 S3, C/2012 OP, C/2012 K8, C/2012 K1, P/2012 B1, C/2011 R1, C/2011 L4, C/2010 S1, 280P, 175P, 63P
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 13 in MPEC 2013-P52 -- C/2013 L2, P/2013 J2, C/2013 F3, C/2012 S3, C/2012 K8, C/2012 K1, C/2012 F6, P/2012 F2, C/2010 S1, C/2008 S3, 154P, 125P, 4P
J52Pinsoro Obs. in Spain, 9 in MPEC 2013-P52 -- P/2013 J2, C/2013 E2, C/2012 S3, C/2012 K1, C/2012 F6, C/2012 A2, C/2011 L4, C/2010 S1, 4P
5611Janos Kelemen via Piszkesteto Station in Hungary, 8 in MPEC 2013-P52 -- C/2013 G8, C/2012 S3, C/2012 K8, C/2012 K1, C/2012 F6, C/2011 L4, C/2010 S1, C/2008 S3
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 18 in MPEC 2013-P52 -- C/2013 J3, P/2013 J2, C/2013 G7, C/2013 E2, C/2012 S4, C/2012 K6, C/2012 K1, P/2012 B1, C/2009 F4, C/2006 S3, 246P, 184P, 158P, 117P, 98P, 74P, 63P, 29P
071Rhozen Obs. in Bulgaria, 4 in MPECs 2013-P50 & 2013-P52 -- 2013 PJ10, 2013 OM9, C/2012 F6, C/2010 S1
939Rodeno Obs. in Spain, 9 in MPEC 2013-P52 -- P/2013 J2, C/2013 E2, C/2012 S3, C/2012 K1, C/2012 F6, C/2011 L4, C/2010 S1, 117P, 98P
C95SATINO-1 in France, 2 in MPEC 2013-P52 -- C/2013 L2, C/2012 Q1
461SZTE Asteroid Program in Hungary, 7 in MPEC 2013-P52 -- P/2013 J2, C/2012 U1, C/2012 LP26, C/2011 KP36, 290P, 184P, 102P
104San Marcello Pistoiese Obs. in Italy, 5 in MPECs 2013-P50 & 2013-P52 -- 2013 PS13, C/2013 E2, 119P, 102P, 2P
233San Vito Obs. in Italy, 3 in MPEC 2013-P52 -- C/2012 K1, C/2011 L4, 26P
204Schiaparelli Obs. in Italy, 29 in MPECs 2013-P50 & 2013-P52 -- 2013 PY6, P/2013 P1, 2013 NL10, C/2013 N4, 2013 KY1, P/2013 J2, C/2013 H1, C/2013 G9, C/2013 G8, C/2013 G2, C/2013 G1, C/2013 F3, C/2013 E2, 2013 BO76, 2011 BN24, 2011 BD40, 2010 UX95, 2010 RT11, 2010 NZ1, 2010 DJ56, 2010 CF19, 2009 OO9, 2009 MS, 2009 DM1, 2006 QA58, 2006 EE1, 2005 EJ94, 2004 YG1, 2004 FE5
E12Siding Spring Survey in New South Wales, 1 in MPEC 2013-P52 -- C/2013 O3
G402program code 2 via Slooh.com Canary Islands Obs. in the Canary Islands, 3 in MPEC 2013-P52 -- P/2013 J2, C/2012 K1, C/2011 L4
J84South Obs. in England, 1 in MPEC 2013-P50 -- 2013 PS13
291Spacewatch 1.8m telescope in Arizona, 14 in MPECs 2013-P50, 2013-P52 & 2013-P53 -- 2013 PW14, 2013 PH10, 2013 OS3, 2013 OO2, 2013 OM2, 2013 NJ, 2013 NE15, 2013 LH25, C/2013 L2, 2013 GY7, 2013 EV108, 2012 CL19, C/2011 KP36, 283P
I93St. Pardon de Conques Obs. in France, 1 in MPEC 2013-P53 -- 2013 PW14
C36Starry Wanderer Obs. in Belarus, 3 in MPEC 2013-P52 -- C/2013 G8, C/2012 A2, C/2010 S1
A71Stixendorf Obs. in Austria, 4 in MPEC 2013-P52 -- C/2013 N4, 290P, 98P, 26P
I81Tarbatness Obs. in Scotland, 4 in MPEC 2013-P52 -- C/2012 F6, C/2011 L4, C/2010 S1, 257P
C35Terrassa Obs., 8 in MPEC 2013-P52 -- C/2012 S3, C/2012 K8, C/2012 K1, C/2012 F6, C/2011 R1, C/2011 L4, C/2010 S1, 257P
712U.S. Air Force Academy Obs. (USAFAO) in Colorado, 4 in MPEC 2013-P52 -- 257P, 117P, 98P, 4P
C28Wellinghofen Obs. in Germany, 2 in MPEC 2013-P52 -- C/2012 F6, C/2011 L4
A79Zvezdno Obshtestvo Obs. in Bulgaria, 2 in MPECs 2013-P50 & 2013-P52 -- 2013 PS13, C/2013 E2
H06=program code "=" via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2013-P52 -- 154P
H06`Erik Bryssinck in Belgium via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2013-P52 -- C/2012 S1
H06|Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 7 in MPEC 2013-P52 -- P/2013 O2, C/2013 N4, C/2013 L2, C/2013 J6, 184P, 112P, 2P
I89iTelescope Obs. Nerpio in Spain, 2 in MPEC 2013-P52 -- C/2012 F6, C/2011 L4
Q62&program code "&" (15) via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2013-P52 -- 102P
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 11 in MPEC 2013-P52 -- C/2013 O3, P/2013 N5, C/2013 J3, C/2013 G6, P/2013 CU129, C/2013 A1, 175P, 156P, 154P, 63P, 26P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 9 August '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 PV13JPL Sentry0423209314.1e-07-4.43-4.430JPL: "Analysis based on 30 observations spanning 1.3644 days (2013-Aug-06.98874 to 2013-Aug-08.35311)." Diameter approximately 0.250 km. from mean, weighted H=20.6.
2013 PS13JPL Sentry1407209612.4e-06-6.87-6.870JPL: "Analysis based on 56 observations spanning 1.1838 days (2013-Aug-07.9199 to 2013-Aug-09.103747)." Diameter approximately 0.011 km. from mean, weighted H=27.5.
NEODyS14072096-210922.43e-06-6.87-6.870NEODyS: "Based on 63 optical observations (of which 7 are rejected as outliers) from 2013-08-07.921 to 2013-08-09.105."
2013 PG10JPL Sentry14072048-211185.0e-06-6.80-6.920JPL: "Analysis based on 17 observations spanning 6.0147 days (2013-Aug-02.39329 to 2013-Aug-08.407995)." Diameter approximately 0.009 km. from mean, weighted H=27.8.
NEODyS14072048-2112163.88e-06-6.91-6.960NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2013-08-02.394 to 2013-08-08.409."
2012 BV1JPL Sentry1407205717.7e-09-11.03-11.00JPL: "Analysis based on 18 observations spanning 1.1223 days (2012-Jan-18.34775 to 2012-Jan-19.47008)." Diameter approximately 0.002 km. from mean, weighted H=31.0.
2011 CF66JPL Sentry01402018-21115371.4e-05-6.12-7.080JPL: "Analysis based on 11 observations spanning .17761 days (2011-Feb-13.33976 to 2011-Feb-13.51737)." Diameter approximately 0.010 km. from mean, weighted H=27.6.
2006 XP4JPL Sentry01402107-211153.4e-06-5.42-5.490JPL: "Analysis based on 139 observations spanning 40.728 days (2006-Dec-14.48509 to 2007-Jan-24.21261)." Diameter approximately 0.055 km. from mean, weighted H=23.9.

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 9 August '13

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

2315Grabbed MPEC 2013-P53 - 2013 PW14 - see above
2106Grabbed MPEC 2013-P52 - Observations and Orbits of Comets - see above
1415Generated Traffic Report
1407Noted that JPL Sentry has posted 2012 BV1 as an impact risk - see above
Noted that JPL Sentry has updated its 2013 PG10 risk assessment - see above
Noted that NEODyS has updated its 2013 PG10 risk assessment - see above
Noted that JPL Sentry has updated its 2013 PS13 risk assessment - see above
Noted that NEODyS has posted 2013 PS13 as an impact risk - see above
Grabbed MPEC 2013-P50 - Daily Orbit Update - see above
Grabbed MPEC 2013-P51 - 2012 DJ4 - see above
0423Noted that JPL Sentry has posted 2013 PV13 as an impact risk - see above
Grabbed MPEC 2013-P49 - 2008 HE66 - see above
0211Grabbed MPEC 2013-P48 - 2007 SW2 - see above
0140Noted that JPL Sentry has updated its 2006 XP4 risk assessment - see above
Noted that JPL Sentry has updated its 2011 CF66 risk assessment - see above