Contents  on 10 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 10 November '13

Six objects reported inside ten LD

There are six asteroids reported to be within a radius of ten lunar distances (LD) from our home planet today. Newly announced risk-listed intruder 2013 VJ11 exits Earth's Hill sphere, passing from 2.88 to 4.88 LD. Out further, two other newly discovered objects are also departing. 2013 VO11 is moving from 5.16 to 7.38 LD and 2013 VK11 from 5.21 to 5.95 LD. Radar target 2001 AV43 is inbound from 7.63 to 6.92 LD and 2013 UE1 is outbound from 8.45 to 9.57 LD, while 2013 VH2 exits ten LD, traveling from 9.61 to 10.59 LD.

Coming our way next, 2011 JY1 arrives inside ten LD tomorrow and radar target 2013 NJ arrives on November 19th.

This report was updated at 2005 UTC with new discoveries 2013 VO11 (MPEC), 2013 VK11 (MPEC), and departed 2013 VP11 (MPEC), plus follow-up in today's DOU MPEC for departed objects 2013 VL5 and 2013 UG1. Today's first traffic report was generated at 0614 UTC with new discovery 2013 VJ11 (MPEC).



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 10 November '13

The MPC's NEO Confirmation Page has 37 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 37 objects listed. Of these, nineteen were "one nighters." So far The Tracking News has counted a total of 57 listings on the NEOCP today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

New MPECs  on 10 November '13

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been nine MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2013-V64 - "23:07 UT" - 2013 VZ11


MPEC 2013-V63 - "22:23 UT" - 2013 VA12


MPEC 2013-V62 - "22:18 UT" - 2013 VY11


MPEC 2013-V61 - "13:32 UT" - 2013 VQ11


MPEC 2013-V60 - "13:26 UT" - 2013 VP11


MPEC 2013-V59 - "12:53 UT" - 2013 VO11


MPEC 2013-V58 - "12:22 UT" - 2013 VK11


<< DOU on 10 Nov. '13 >>  MPEC 2013-V57 - "06:05 UT" - Daily Orbit Update


MPEC 2013-V56 - "03:14 UT" - 2013 VJ11

Observers  on 10 November '13

A total of 32 observers appear in today's MPECs.

CodeObserver / observatory
J16An Carraig Obs. in Northern Ireland, 1 in MPEC 2013-V64 -- 2013 VZ11
H21Astronomical Research Obs. Westfield in Illinois, 12 in MPECs 2013-V57, 2013-V59, 2013-V60, 2013-V63 & 2013-V64 -- 2013 VZ11, 2013 VP11, 2013 VO11, 2013 VA12, 2013 UL5, 2013 UH9, 2013 UG9, 2013 UG5, 2013 UG1, 2013 UC3, 2013 TL117, 2013 SC25
I47Auger Obs. in Argentina, 1 in MPEC 2013-V57 -- 2013 UQ4
U82CS3 Palmer Divide Station in southern California, 3 in MPEC 2013-V57 -- 2013 UH9, 2006 HU30, 162566
703Catalina Sky Survey (CSS) in Arizona, 22 in MPECs 2013-V56, 2013-V57, 2013-V58, 2013-V59, 2013-V60, 2013-V63 & 2013-V64 -- 2013 VZ11, 2013 VP11, 2013 VO11, 2013 VK5, 2013 VK11, 2013 VJ2, 2013 VJ11, 2013 VA12, 2013 TB80, 2013 SK19, 2013 ON5, 2011 WU95, 2010 GY6, 2006 VT2, 2005 VR, 370688, 360433, 257838, 254419, 194126, 3988, 2212
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 6 in MPECs 2013-V57 & 2013-V64 -- 2013 VZ11, 2013 VM4, 2013 TS5, 2013 TH135, 2013 TE, 2007 RV19
958Dax Obs. in France, 1 in MPEC 2013-V64 -- 2013 VZ11
448Desert Moon Obs. in New Mexico, 6 in MPECs 2013-V57, 2013-V63 & 2013-V64 -- 2013 VZ11, 2013 VA12, 2013 UE3, 2013 UC, 2010 GY6, 152756
I48El Catalejo Obs. in Argentina, 1 in MPEC 2013-V64 -- 2013 VZ11
734Farpoint Obs. in Kansas, 1 in MPEC 2013-V64 -- 2013 VZ11
651Grasslands Obs. in Arizona, 1 in MPEC 2013-V64 -- 2013 VZ11
J95Great Shefford Obs. in England, 3 in MPECs 2013-V60, 2013-V63 & 2013-V64 -- 2013 VZ11, 2013 VP11, 2013 VA12
C43Hoyerswerda Obs. in Germany, 1 in MPEC 2013-V64 -- 2013 VZ11
H15ISON-NM Obs. in New Mexico, 2 in MPEC 2013-V57 -- 87311, 142464
W85LCOGT Cerro Tololo A in Chile, 1 in MPEC 2013-V57 -- 2013 VZ9
568_Marco Micheli on Mauna Kea in Hawaii, 1 in MPEC 2013-V57 -- 2013 VL5
G96Mt. Lemmon Survey (MLS) in Arizona, 15 in MPECs 2013-V57, 2013-V58, 2013-V59, 2013-V60, 2013-V61, 2013-V63 & 2013-V64 -- 2013 VZ11, 2013 VQ11, 2013 VP11, 2013 VO11, 2013 VK11, 2013 VA12, 2013 TT135, 2013 TC136, 2009 FU4, 2006 UL185, 2005 VA2, 1999 SK10, 1990 UP, 374038, 143651
A24New Millennium Obs. in Italy, 1 in MPEC 2013-V64 -- 2013 VZ11
G34Oberfrauendorf Obs., 1 in MPEC 2013-V57 -- 2013 VO5
F51Pan-STARRS 1 (PS1) in Hawaii, 7 in MPECs 2013-V57, 2013-V61 & 2013-V62 -- 2013 VY11, 2013 VQ11, 2013 VN4, 2013 UQ4, 2013 SK19, 2013 MY5, 2004 HX53
J41Raheny Obs. in Ireland, 1 in MPEC 2013-V60 -- 2013 VP11
854Sabino Canyon Obs. in Arizona, 3 in MPECs 2013-V58, 2013-V60 & 2013-V63 -- 2013 VP11, 2013 VK11, 2013 VA12
H36Sandlot Obs. in Kansas, 3 in MPECs 2013-V57, 2013-V60 & 2013-V63 -- 2013 VP11, 2013 VA12, 2013 UY
B74Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2013-V64 -- 2013 VZ11
204Schiaparelli Obs. in Italy, 3 in MPECs 2013-V56, 2013-V58 & 2013-V64 -- 2013 VZ11, 2013 VK11, 2013 VJ11
K90Sopot Obs., 3 in MPEC 2013-V57 -- 2013 SK19, 2013 OM9, 162566
J84South Obs. in England, 1 in MPEC 2013-V63 -- 2013 VA12
691Spacewatch 0.9m telescope in Arizona, 4 in MPECs 2013-V57 & 2013-V63 -- 2013 VA12, 2013 TS4, 374038, 143651
291Spacewatch 1.8m telescope in Arizona, 4 in MPECs 2013-V57 & 2013-V62 -- 2013 VZ4, 2013 VY11, 2013 SV24, 2010 CH18
926Tenagra II Obs. in Arizona, 5 in MPECs 2013-V57, 2013-V63 & 2013-V64 -- 2013 VZ11, 2013 VQ4, 2013 VB10, 2013 VA12, 2013 UV10
B18Terskol Obs. in Russia, 2 in MPECs 2013-V63 & 2013-V64 -- 2013 VZ11, 2013 VA12
G33Wickede Obs. in Germany, 1 in MPEC 2013-V57 -- 1627
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 10 November '13

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2358 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 VJ11NEODyS18392069-210981.76e-06-7.29-7.460NEODyS: "Based on 20 optical observations (of which 4 are rejected as outliers) from 2013-11-09.361 to 2013-11-10.108."
JPL Sentry05152069-210951.9e-06-7.26-7.400JPL: "Analysis based on 16 observations spanning .70283 days (2013-Nov-09.40426 to 2013-Nov-10.10709)." Diameter approximately 0.009 km. from mean, weighted H=27.8.
2013 VZ4JPL Sentry18392063-209552.4e-05-3.91-4.240JPL: "Analysis based on 22 observations spanning 4.8140 days (2013-Nov-04.43691 to 2013-Nov-09.25096)." Diameter approximately 0.081 km. from mean, weighted H=23.1.
NEODyS18392063-209542.68e-05-3.87-4.20NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2013-11-04.438 to 2013-11-09.252."

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 10 November '13

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

2358Grabbed MPEC 2013-V62 - 2013 VY11 - see above
Grabbed MPEC 2013-V63 - 2013 VA12 - see above
Grabbed MPEC 2013-V64 - 2013 VZ11 - see above
2005Updated Traffic Report
1839Noted that NEODyS has posted 2013 VJ11 as an impact risk - see above
Noted that JPL Sentry has updated its 2013 VZ4 risk assessment - see above
Noted that NEODyS has updated its 2013 VZ4 risk assessment - see above
Grabbed MPEC 2013-V57 - Daily Orbit Update - see above
Grabbed MPEC 2013-V58 - 2013 VK11 - see above
Grabbed MPEC 2013-V59 - 2013 VO11 - see above
Grabbed MPEC 2013-V60 - 2013 VP11 - see above
Grabbed MPEC 2013-V61 - 2013 VQ11 - see above
0515Noted that JPL Sentry has posted 2013 VJ11 as an impact risk - see above
Grabbed MPEC 2013-V56 - 2013 VJ11 - see above