Contents  on 9 September '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 9 September '12

No objects reported inside ten LD

We have no asteroids reported passing within ten lunar distances (LD) of our planet today. On approach next, radar target 2012 QG42 arrives inside ten LD on September 11th and 2010 JK1 on November 22nd.

This report was generated at 1649 UTC with follow-up in today's DOU MPEC for 2012 QG42.


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 September '12

The MPC's NEO Confirmation Page has 12 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had twelve objects listed. Of these, seven were "one nighters." So far The Tracking News has counted a total of 21 listings on the NEOCP today.

New MPECs  on 9 September '12

Minor Planet Electronic Circulars

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


<< OOC on 9 Sept. '12 >> MPEC 2012-R16 - "16:50 UT" - Observations and Orbits of Comets


<< DOU on 9 Sept. '12 >>  MPEC 2012-R15 - "06:02 UT" - Daily Orbit Update

Observers  on 9 September '12

A total of 69 observers appear in today's MPECs.

CodeObserver / observatory
J24Altamira Obs. in the Canary Islands, 11 in MPEC 2012-R16 -- P/2012 O3, P/2012 NJ, C/2012 L1, C/2012 K5, C/2012 K1, C/2011 F1, C/2010 S1, C/2008 S3, 262P, 168P, 160P
I74Baxter Garden Obs. in England, 3 in MPEC 2012-R15 -- 2012 QG42, 2012 QB17, 1994 EK
C86Blanes Obs. in Spain, 7 in MPEC 2012-R16 -- P/2012 NJ, C/2012 K5, C/2012 J1, C/2011 F1, C/2010 S1, 260P, 168P
I99Blanquita Obs. in Spain, 4 in MPEC 2012-R16 -- P/2012 NJ, C/2012 K5, C/2011 F1, C/2010 S1
B59Borken Obs. in Germany, 1 in MPEC 2012-R16 -- C/2012 J1
B96Brixiis Obs. in Belgium, 11 in MPEC 2012-R16 -- C/2012 Q1, P/2012 NJ, C/2012 K5, C/2012 J1, C/2010 S1, C/2008 S3, C/2008 FK75, 261P, 260P, 168P, 160P
215Buchloe Obs. in Germany, 4 in MPEC 2012-R16 -- C/2012 Q1, 158P, 71P, 2P
235CAST Obs. in Italy, 3 in MPEC 2012-R16 -- C/2012 K5, C/2011 F1, C/2010 S1
160Castelmartini Obs. in Italy, 12 in MPECs 2012-R15 & 2012-R16 -- P/2012 NJ, C/2012 K5, C/2012 J1, C/2011 F1, C/2010 S1, 333358, 333284, 219071, 260P, 168P, 160P, 96P
A77Chante-Perdrix Obs. in France, 6 in MPEC 2012-R16 -- C/2012 K1, C/2012 J1, C/2012 CH17, C/2011 F1, 260P, 168P
J01Cielo Profundo Obs. in Spain, 7 in MPEC 2012-R16 -- P/2012 O3, C/2012 K5, C/2012 J1, C/2010 S1, C/2008 S3, 260P, 168P
B50Corner Obs. in Germany, 2 in MPEC 2012-R16 -- C/2012 K5, C/2011 F1
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2012-R16 -- 2P
958Dax Obs. in France, 22 in MPEC 2012-R16 -- P/2012 O3, P/2012 NJ, C/2012 L3, C/2012 L2, C/2012 K5, C/2012 K1, C/2012 J1, C/2011 F1, C/2011 A3, C/2010 S1, C/2010 R1, C/2008 S3, C/2008 FK75, C/2006 S3, 261P, 260P, 189P, 185P, 160P, 96P, 71P, 37P
J36El Olivo Obs. in Spain, 5 in MPEC 2012-R16 -- P/2012 NJ, C/2012 J1, 260P, 168P, 160P
I57Elche Obs., 3 in MPEC 2012-R16 -- P/2012 NJ, C/2012 K5, C/2011 F1
F658David Tholen's team in Hawaii via Faulkes Telescope North in Hawaii, 5 in MPECs 2012-R15 & 2012-R16 -- 2012 QC8, 2012 PG6, P/2012 NJ, 2011 YU62, 4769
E100Tim Lister in southern California via Faulkes Telescope South in New South Wales, 1 in MPEC 2012-R15 -- 2012 QC8
I88Fuensanta de Martos Obs., 1 in MPEC 2012-R16 -- C/2010 S1
372Geisei Obs. in Japan, 2 in MPEC 2012-R16 -- P/2012 NJ, C/2012 J1
E94Gisborne Obs. in New Zealand, 3 in MPEC 2012-R16 -- C/2011 R1, C/2011 L4, C/2006 S3
J95Great Shefford Obs. in England, 4 in MPECs 2012-R15 & 2012-R16 -- C/2012 Q1, 2012 PX, 2012 PK24, P/2012 NJ
D88Hiratsuka Obs. in Japan, 5 in MPEC 2012-R16 -- C/2012 J1, C/2008 S3, 261P, 168P, 160P
D00ISON-Kislovodsk Obs., 3 in MPEC 2012-R16 -- P/2012 NJ, C/2012 J1, 168P
H15ISON-NM Obs. in New Mexico, 1 in MPEC 2012-R15 -- 2012 QG42
C32Ka-Dar Obs. TAU Station in Russia, 3 in MPEC 2012-R16 -- C/2012 K5, C/2012 K1, 168P
585Kiev Comet Station in the Ukraine, 14 in MPEC 2012-R16 -- P/2012 O3, P/2012 NJ, C/2012 K5, C/2012 K1, C/2012 J1, C/2011 F1, C/2010 S1, C/2006 S3, 262P, 261P, 260P, 189P, 168P, 96P
168Kourovskaya Obs. in Russia, 18 in MPEC 2012-R15 -- 2012 OO, 2012 LU7, 2012 LE11, 2012 BC20, 2010 OS22, 2009 AV, 2004 SB56, 2001 QG142, 2000 RN77, 87684, 52387, 333284, 326732, 217013, 214869, 154007, 4587, 4487
C04Kramatorsk Obs. in the Ukraine, 1 in MPEC 2012-R16 -- 260P
C40Kuban State Univ. Obs. in Russia, 10 in MPEC 2012-R16 -- P/2012 NJ, C/2012 K5, C/2012 J1, C/2011 UF305, C/2011 F1, C/2010 S1, C/2006 S3, 260P, 189P, 96P
D95Kurihara Obs. in Japan, 9 in MPEC 2012-R16 -- C/2012 L2, C/2012 L1, C/2012 J1, C/2011 L4, C/2011 F1, C/2008 FK75, C/2006 S3, 152P, 96P
J31La Axarquia Obs. in Spain, 2 in MPEC 2012-R16 -- C/2012 J1, C/2010 S1
J38La Vara Obs. in Spain, 7 in MPEC 2012-R16 -- P/2012 O3, P/2012 NJ, C/2012 K5, C/2011 F1, C/2010 S1, 260P, 96P
844Los Molinos Obs. in Uruguay, 1 in MPEC 2012-R16 -- C/2011 R1
130Lumezzane Obs. in Italy, 1 in MPEC 2012-R16 -- 37P
D09MPC code D09, 3 in MPEC 2012-R16 -- P/2012 NJ, C/2012 K5, C/2011 F1
B82Maidbronn Obs. in Germany, 3 in MPEC 2012-R16 -- P/2012 NJ, C/2012 K5, C/2010 S1
G49Minnetonka Obs., 1 in MPEC 2012-R16 -- C/2011 F1
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2012-R15 -- 2012 QG42
J93Mt. Tuffley Obs. in England, 1 in MPEC 2012-R16 -- 260P
E07Murrumbateman Obs. in New South Wales, 6 in MPEC 2012-R16 -- C/2012 K6, P/2012 K3, C/2011 R1, C/2011 O1, C/2011 A3, 74P
A13Naef Obs. in Switzerland, 4 in MPEC 2012-R15 -- 2012 QF42, 2008 SS251, 329520, 162900
J47Nazaret Obs. in Spain, 3 in MPEC 2012-R16 -- C/2012 K5, C/2008 S3, 96P
C47Nonndorf Obs. in Austria, 5 in MPEC 2012-R16 -- P/2012 NJ, C/2012 L1, C/2012 K5, C/2010 S1, 260P
C23Olmen Obs. in Belgium, 13 in MPECs 2012-R15 & 2012-R16 -- 2012 QG42, P/2012 NJ, C/2012 L2, C/2012 L1, C/2012 K5, C/2012 J1, C/2011 F1, C/2010 S1, C/2008 S3, C/2008 FK75, C/2006 S3, 168P, 160P
F51Pan-STARRS 1 in Hawaii, 1 in MPEC 2012-R15 -- 2012 QJ45
H45Petit Jean Mtn. South Obs. in Arkansas, 1 in MPEC 2012-R16 -- P/2012 NJ
941Pla D'Arguines Obs. in Spain, 1 in MPEC 2012-R15 -- 2012 QG42
H068program code 8 via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2012-R15 -- 2012 QG42
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 6 in MPEC 2012-R16 -- P/2012 O3, P/2012 O2, C/2012 K6, C/2011 O1, C/2009 F4, 260P
071Rhozen Obs. in Bulgaria, 5 in MPEC 2012-R16 -- C/2011 UF305, C/2011 L4, C/2010 S1, C/2006 S3, 246P
C79Roser Obs., 3 in MPEC 2012-R16 -- C/2012 L1, C/2012 K5, C/2010 S1
104San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2012-R15 -- 2012 QG42
B70Sant Celoni Obs. in Spain, 1 in MPEC 2012-R16 -- C/2010 S1
204Schiaparelli Obs. in Italy, 2 in MPEC 2012-R16 -- 262P, 119P
E12Siding Spring Survey in New South Wales, 1 in MPEC 2012-R15 -- 2010 ED43
510Siegen Obs. in Germany, 4 in MPECs 2012-R15 & 2012-R16 -- 2012 QG42, C/2012 K5, C/2012 J1, C/2011 F1
G68Sierra Stars Obs. in northern California, 1 in MPEC 2012-R16 -- P/2012 NJ
I93St. Pardon de Conques Obs. in France, 4 in MPEC 2012-R15 -- 2012 QY14, 2012 QQ50, 2012 PS17, 2012 PC20
C36Starry Wanderer Obs. in Belarus, 1 in MPEC 2012-R16 -- 260P
A71Stixendorf Obs. in Austria, 12 in MPEC 2012-R16 -- P/2012 O3, C/2012 L2, C/2012 K5, C/2012 K1, C/2012 J1, C/2011 UF305, C/2010 S1, C/2008 S3, 261P, 260P, 185P, 168P
A98Taurus-1 Obs. in Belarus, 3 in MPEC 2012-R16 -- P/2012 NJ, C/2012 K5, C/2012 J1
954Teide Obs. in the Canary Islands, 2 in MPEC 2012-R16 -- C/2012 J1, C/2010 S1
C35Terrassa Obs., 1 in MPEC 2012-R16 -- C/2010 S1
B18Terskol Obs. in Russia, 1 in MPEC 2012-R15 -- 4179
B51Vallauris Obs. in France, 2 in MPEC 2012-R16 -- C/2012 L2, 260P
940Waterlooville Obs. in England, 1 in MPEC 2012-R16 -- C/2010 S1
718Wiggins Obs. in Utah, 1 in MPEC 2012-R15 -- 2012 QE50
J08Zonalunar Obs. in Spain, 3 in MPEC 2012-R16 -- P/2012 NJ, C/2012 K5, C/2010 S1
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 9 September '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 PK24JPL Sentry16472045-2100114.1e-05-3.61-3.620JPL: "Analysis based on 47 observations spanning 26.561 days (2012-Aug-13.41356 to 2012-Sep-08.97432)." Diameter approximately 0.064 km. from mean, weighted H=23.6.
NEODyS16472038-2094161.76e-05-3.98-4.00NEODyS: "Based on 47 optical observations (of which 0 are rejected as outliers) from 2012-08-13.414 to 2012-09-08.975."
2012 PXJPL Sentry1647210821.5e-06-5.32-5.410JPL: "Analysis based on 199 observations spanning 32.821 days (2012-Aug-07.35157 to 2012-Sep-09.17265)." Diameter approximately 0.079 km. from mean, weighted H=23.1.
NEODyS1647R E M O V E D-

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 September '12

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

1814Grabbed MPEC 2012-R16 - Observations and Orbits of Comets - see above
1649Generated Traffic Report
1647Noted that JPL Sentry has updated its 2012 PK24 risk assessment - see above
Noted that NEODyS has updated its 2012 PK24 risk assessment - see above
Noted that JPL Sentry has updated its 2012 PX risk assessment - see above
Noted that NEODyS has removed 2012 PX as an impact risk - see above
Grabbed MPEC 2012-R15 - Daily Orbit Update - see above