Contents  on 25 November '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 25 November '13

Two objects reported inside ten LD

Two asteroids are reported traveling within ten lunar distances (LD) of our planet today. Inside Earth's Hill sphere, radar target 2013 NJ is inbound from 3.01 to 2.47 LD, and, further away, radar target 2001 AV43 is outbound from 5.72 to 6.42 LD.

This report was updated at 1833 UTC to note today's DOU MPEC with follow-up for 2013 UG1 and observation from November 9th of 2011 JY1. Today's first traffic report was generated at 1435 UTC.



Notes: Ten times the distance to the Moon (ten LD) has no astronomical significance but is a useful reporting boundary. Earth's Hill sphere (of gravitational influence) is estimated to extend out to around 3.89 LD. 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 25 November '13

The MPC's NEO Confirmation Page has 21 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 21 objects listed. Of these, thirteen were "one nighters." So far The Tracking News has counted a total of 26 listings on the NEOCP today.

New MPECs  on 25 November '13

Minor Planet Electronic Circulars

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


MPEC 2013-W14 - "21:52 UT" - 2013 WH


<< OOC on 25 Nov. '13 >> MPEC 2013-W13 - "17:40 UT" - Observations and Orbits of Comets


<< DOU on 25 Nov. '13 >>  MPEC 2013-W12 - "17:31 UT" - Daily Orbit Update

Observers  on 25 November '13

A total of 48 observers appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 2 in MPEC 2013-W13 -- C/2013 V3, C/2012 S1
H21Astronomical Research Obs. Westfield in Illinois, 44 in MPECs 2013-W12 & 2013-W14 -- 2013 WH, 2013 VZ9, 2013 VV4, 2013 VO5, 2013 VN4, 2013 VK5, 2013 VC10, 2013 VA12, 2013 US3, 2013 UR3, 2013 UH9, 2013 UG9, 2013 UG1, 2013 UF3, 2013 UE3, 2013 UC, 2013 UB1, 2013 TS4, 2013 TL117, 2013 TE6, 2013 TC136, 2013 TB80, 2013 SK19, 2013 RK16, 2012 ER14, 2011 WM2, 2010 SL13, 2008 WK32, 2008 UW5, 2008 TQ2, 2000 WC67, 85839, 53435, 52760, 262623, 249595, 229007, 22753, 163249, 163051, 138205, 12923, 8176, 4055
A74Bergen-Enkheim Obs. in Germany, 1 in MPEC 2013-W14 -- 2013 WH
C86Blanes Obs. in Spain, 4 in MPEC 2013-W13 -- C/2012 F6, C/2011 J2, C/2010 S1, 154P
I99Blanquita Obs. in Spain, 5 in MPEC 2013-W13 -- C/2013 V3, C/2013 V1, C/2013 R1, C/2012 X1, C/2011 J2
Q68Blue Mountains Obs. in New South Wales, 4 in MPEC 2013-W13 -- C/2013 V1, C/2013 A1, C/2009 F4, 154P
G36CASADO in Spain, 2 in MPEC 2013-W13 -- P/2013 R3, 65P
W96Campo Catino Austral Obs. (CAO) in Chile, 9 in MPEC 2013-W13 -- C/2013 V4, C/2013 V1, C/2013 N4, C/2013 G6, C/2013 C2, C/2012 S1, C/2012 J1, C/2012 A1, 292P
I72Carpe Noctem Obs., 5 in MPEC 2013-W13 -- C/2013 R1, C/2012 X1, C/2011 J2, C/2010 S1, 154P
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2013-W14 -- 2013 WH
A77Chante-Perdrix Obs. in France, 11 in MPEC 2013-W13 -- C/2013 V3, C/2013 V2, C/2013 R1, C/2012 X1, C/2010 S1, 257P, 154P, 119P, 98P, 17P, 4P
J01Cielo Profundo Obs. in Spain, 13 in MPEC 2013-W13 -- C/2013 V3, C/2013 V2, C/2013 V1, C/2013 R1, C/2012 X1, C/2012 S1, C/2012 J1, C/2011 J2, C/2009 F4, C/2006 S3, 154P, 119P, 102P
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2013-W13 -- C/2013 V3
E108program code 8 via Faulkes Telescope South in New South Wales, 1 in MPEC 2013-W13 -- C/2013 A1
Z62Forcarei Obs., 1 in MPEC 2013-W12 -- 2013 UH9
G26Fushan Obs., 2 in MPEC 2013-W13 -- C/2012 F6, 154P
372Geisei Obs. in Japan, 3 in MPEC 2013-W13 -- C/2013 P3, C/2013 E2, C/2012 F6
442Gualba Obs. in Spain, 1 in MPEC 2013-W13 -- 2P
D88Hiratsuka Obs. in Japan, 7 in MPEC 2013-W13 -- C/2013 V1, C/2013 E2, C/2012 A2, 292P, 291P, 119P, 32P
048Hradec Kralove Obs. in the Czech Republic, 1 in MPEC 2013-W13 -- C/2013 V3
D95Kurihara Obs. in Japan, 6 in MPEC 2013-W13 -- C/2013 V3, C/2013 R1, C/2013 N4, C/2012 X1, C/2012 S1, C/2011 J2
J38La Vara Obs. in Spain, 3 in MPEC 2013-W13 -- C/2013 V3, C/2013 V2, C/2013 R1
P34Lvye Obs., 2 in MPEC 2013-W13 -- C/2012 S1, 154P
A06Mataro Obs. in Spain, 1 in MPEC 2013-W13 -- 154P
213Montcabre Obs. in Spain, 8 in MPECs 2013-W12 & 2013-W13 -- C/2013 V2, 2013 SC25, P/2013 R3, C/2013 R1, P/2013 J2, C/2012 X1, 184P, 154P
900Moriyama Obs. in Japan, 5 in MPEC 2013-W13 -- C/2013 V4, C/2012 U1, C/2009 F4, 292P, 154P
E07Murrumbateman Obs. in New South Wales, 5 in MPEC 2013-W13 -- C/2013 E2, C/2013 A1, C/2011 F1, C/2009 F4, 292P
D81Nagano Obs. in Japan, 1 in MPEC 2013-W13 -- C/2013 R1
0892Oleksandr V. Shulga via Nikolaev Obs. in the Ukraine, 9 in MPEC 2013-W12 -- 2013 VO5, 2013 VJ2, 2013 TV135, 2013 RM43, 2012 ER14, 2011 JY1, 2006 HU30, 2005 RQ6, 2003 WX25
583Odessa-Mayaki Obs. in the Ukraine, 1 in MPEC 2013-W13 -- 273P
F51Pan-STARRS 1 (PS1) in Hawaii, 20 in MPECs 2013-W12, 2013-W13 & 2013-W14 -- 2013 WH, 2013 VA10, 2013 TV135, 2013 NP8, C/2012 U1, 2005 VA2, 2005 RO33, 2004 KE1, 2004 HX53, 65996, 378124, 370307, 351370, 242708, 20460, 164184, 143651, 138852, 10115, 1580
D29Purple Mtn. Obs. Xuyi Station in China, 8 in MPECs 2013-W12 & 2013-W13 -- 2013 TS4, 2011 WU95, 30825, 22753, 162004, 10115, 269P, 119P
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 13 in MPEC 2013-W13 -- C/2013 V1, C/2013 US10, C/2013 A1, C/2012 X2, C/2012 V2, C/2012 S4, C/2011 O1, C/2011 F1, 292P, 178P, 158P, 119P, 17P
L04ROASTERR-1 Obs., 2 in MPEC 2013-W13 -- C/2013 V2, C/2011 J2
H36Sandlot Obs. in Kansas, 2 in MPECs 2013-W13 & 2013-W14 -- 2013 WH, 178P
B74Santa Maria de Montmagastrell Obs. in Spain, 2 in MPECs 2013-W13 & 2013-W14 -- 2013 WH, C/2013 V1
204Schiaparelli Obs. in Italy, 8 in MPECs 2013-W12 & 2013-W13 -- 2013 VK5, C/2013 V1, 2013 US3, 2013 UQ4, 2013 UG5, 2013 UF3, C/2013 R1, 376707
G402program code 2 via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2013-W13 -- C/2013 R1
G403Tony Evans in Portugal via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2013-W13 -- 257P
G404Don Cranford, Jr. in North Carolina via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2013-W13 -- 154P
291Spacewatch 1.8m telescope in Arizona, 6 in MPEC 2013-W12 -- 2013 VZ9, 2013 VN4, 2013 UF5, 2013 TG4, 2007 LV19, 2004 YR
K21St. Saturnin les Avignon Obs., 2 in MPEC 2013-W13 -- C/2013 R1, 154P
926Tenagra II Obs. in Arizona, 1 in MPEC 2013-W12 -- 2009 HB
C35Terrassa Obs., 2 in MPEC 2013-W13 -- P/2013 J2, 154P
B18Terskol Obs. in Russia, 1 in MPEC 2013-W14 -- 2013 WH
P36ULTRA Obs., 1 in MPEC 2013-W13 -- C/2013 R1
B51Vallauris Obs. in France, 2 in MPEC 2013-W13 -- C/2013 V3, C/2013 R1
718Wiggins Obs. in Utah, 2 in MPEC 2013-W12 -- 2013 VD13, 2013 UR3
I89#program code "#" (12) via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2013-W13 -- C/2013 R1
I894program code 4 via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2013-W13 -- 52P
I899program code 9 via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2013-W13 -- C/2013 R1
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 6 in MPEC 2013-W13 -- C/2013 V4, C/2013 U1, P/2013 N3, C/2012 S4, 246P, 17P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 25 November '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
2009 VZ39JPL Sentry22002014-21128176.9e-06-6.03-7.070JPL: "Analysis based on 8 observations spanning .04342 days (2009-Nov-10.27204 to 2009-Nov-10.31546)." Diameter approximately 0.009 km. from mean, weighted H=27.9.
2005 TM173JPL Sentry22002013-21101298.6e-07-5.10-5.470JPL: "Analysis based on 6 observations spanning 1.9467 days (2005-Oct-09.20072 to 2005-Oct-11.14743)." Diameter approximately 0.051 km. from mean, weighted H=24.1.

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 25 November '13

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

2200Noted that JPL Sentry has updated its 2005 TM173 risk assessment - see above
Noted that JPL Sentry has updated its 2009 VZ39 risk assessment - see above
Grabbed MPEC 2013-W14 - 2013 WH - see above
1833Updated Traffic Report
1828Grabbed MPEC 2013-W12 - Daily Orbit Update - see above
Grabbed MPEC 2013-W13 - Observations and Orbits of Comets - see above