Contents  on 7 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 7 November '13

Four objects reported inside ten LD

There are four visitors reported inside ten lunar distances (LD) of our planet today. 2013 VG2 is outbound from 6.33 to 9.03 LD, 2013 UE1 comes its closest to Earth on this passage, reaching 7.42 LD at 2350 UT, 2013 VH2 also comes its closest to Earth this time around -- 8.54 LD at 1309 UT, and radar target 2001 AV43 is inbound from 9.81 to 9.07 LD.

On approach next, 2011 JY1 arrives inside ten LD on November 11th and radar target 2013 NJ arrives on November 19th.

This report was generated at 1634 UTC with the first follow-up for 2013 VH2 in today's DOU MPEC.



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 7 November '13

The MPC's NEO Confirmation Page has 31 listings

When last checked at 2311 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 31 objects listed. Of these, eleven were "one nighters." So far The Tracking News has counted a total of 44 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 7 November '13

Minor Planet Electronic Circulars

As of last check at 2311 UTC, there have been five MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2013-V41 - "22:32 UT" - 2013 VO5


MPEC 2013-V40 - "22:27 UT" - 2013 VM5


MPEC 2013-V39 - "22:22 UT" - 2013 VL5


MPEC 2013-V38 - "22:16 UT" - 2013 VK5


<< DOU on 7 Nov. '13 >>  MPEC 2013-V37 - "06:04 UT" - Daily Orbit Update

Observers  on 7 November '13

A total of 36 observers appear in today's MPECs.

CodeObserver / observatory
I22Abbey Ridge Obs. in Nova Scotia, 1 in MPEC 2013-V37 -- 2013 TV135
J16An Carraig Obs. in Northern Ireland, 1 in MPEC 2013-V37 -- 2013 RM43
E23Arcadia Obs. in New South Wales, 1 in MPEC 2013-V38 -- 2013 VK5
H21Astronomical Research Obs. Westfield in Illinois, 16 in MPECs 2013-V37, 2013-V39 & 2013-V41 -- 2013 VO5, 2013 VL5, 2013 UP5, 2013 UM9, 2013 UL9, 2013 UH5, 2013 UF3, 2013 TH5, 2013 SX24, 2013 RU73, 2013 RE, 2013 RB74, 2013 QV1, 2010 JF, 2007 FK3, 2006 MF10
C77Bernezzo Obs. in Italy, 3 in MPECs 2013-V37 & 2013-V41 -- 2013 VO5, 2013 VJ2, 2000 KA
I58Betera Obs., 1 in MPEC 2013-V41 -- 2013 VO5
703Catalina Sky Survey (CSS) in Arizona, 7 in MPECs 2013-V37, 2013-V38 & 2013-V41 -- 2013 VO5, 2013 VK5, 2013 TE6, 2013 TC136, 350751, 276468, 242708
K51Celado Obs., 2 in MPEC 2013-V37 -- 2013 UH9, 141079
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 10 in MPECs 2013-V37, 2013-V38 & 2013-V39 -- 2013 VM4, 2013 VL5, 2013 VK5, 2013 VK, 2013 TK69, 2013 JK22, 2010 KR10, 2009 FG1, 285838, 138013
I39Cruz del Sur Obs. in Argentina, 1 in MPEC 2013-V38 -- 2013 VK5
958Dax Obs. in France, 1 in MPEC 2013-V41 -- 2013 VO5
448Desert Moon Obs. in New Mexico, 5 in MPEC 2013-V37 -- 2013 TL117, 2013 TC136, 2012 ER14, 276468, 163249
Z81Estrella de Mar Obs., 3 in MPEC 2013-V37 -- 2013 VM2, 85774, 142781
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2013-V39 -- 2013 VL5
203GiaGa Obs. in Italy, 4 in MPECs 2013-V37, 2013-V39 & 2013-V41 -- 2013 VO5, 2013 VL5, 2013 UE3, 2013 SC25
C01Lohrmann Obs. in Germany, 4 in MPEC 2013-V37 -- 2013 TV135, 162694, 162273, 141079
I36Los Campitos Obs. in Argentina, 2 in MPECs 2013-V38 & 2013-V41 -- 2013 VO5, 2013 VK5
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2013-V40 -- 2013 VM5
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2013-V37 -- 2013 PO43
568_Marco Micheli on Mauna Kea in Hawaii, 2 in MPECs 2013-V39 & 2013-V40 -- 2013 VM5, 2013 VL5
900Moriyama Obs. in Japan, 1 in MPEC 2013-V41 -- 2013 VO5
G96Mt. Lemmon Survey (MLS) in Arizona, 5 in MPECs 2013-V37 & 2013-V38 -- 2013 VK5, 2013 UQ4, 2013 TD4, 2008 TN26, 360433
E07Murrumbateman Obs. in New South Wales, 1 in MPEC 2013-V37 -- 373135
C23Olmen Obs. in Belgium, 1 in MPEC 2013-V37 -- 2013 RM43
I41Palomar Transient Factory in southern California, 1 in MPEC 2013-V37 -- 142781
F51Pan-STARRS 1 (PS1) in Hawaii, 10 in MPECs 2013-V37, 2013-V39 & 2013-V40 -- 2013 VX4, 2013 VM5, 2013 VL5, 2013 MY5, 2009 WC52, 2009 HB, 2006 VT2, 373393, 8201, 1580
D29Purple Mtn. Obs. Xuyi Station in China, 4 in MPEC 2013-V37 -- 2013 TV135, 2013 SK19, 370688, 3988
854Sabino Canyon Obs. in Arizona, 1 in MPEC 2013-V41 -- 2013 VO5
104San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2013-V41 -- 2013 VO5
H36Sandlot Obs. in Kansas, 1 in MPEC 2013-V39 -- 2013 VL5
B74Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2013-V38 -- 2013 VK5
926Tenagra II Obs. in Arizona, 12 in MPEC 2013-V37 -- 2013 VQ4, 2013 VP4, 2013 VO4, 2013 VN4, 2013 VM2, 2013 VL2, 2013 VJ2, 2013 VH2, 2013 UP5, 2013 UM9, 2013 UK9, 2010 SL13
239Trebur Obs., 1 in MPEC 2013-V37 -- 2013 TV135
A48Verona Obs. in Italy, 1 in MPEC 2013-V37 -- 2013 RM43
G56Walnut Creek Obs. in northern California, 4 in MPEC 2013-V37 -- 2013 VM2, 2013 UH5, 2013 UE3, 142781
718Wiggins Obs. in Utah, 1 in MPEC 2013-V37 -- 2013 TV135
J08Zonalunar Obs. in Spain, 1 in MPEC 2013-V41 -- 2013 VO5
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 7 November '13

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2311 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 VZ4NEODyS16302052-2112331.06e-06-5.20-5.790NEODyS: "Based on 9 optical observations (of which 0 are rejected as outliers) from 2013-11-04.438 to 2013-11-06.395."
2013 VQ4NEODyS1630R E M O V E D-
JPL Sentry1630R E M O V E DJPL: Risk listing removed at 1354 UTC.
2013 VP4JPL Sentry1630R E M O V E DJPL: Risk listing removed at 1302 UTC.
2013 TV135JPL Sentry1630203215.9e-09-5.18-5.180JPL: "Analysis based on 661 observations spanning 25.283 days (2013-Oct-12.9551 to 2013-Nov-07.23804)." Diameter approximately 0.450 km. from mean, weighted H=19.4.
NEODyS16302032-204721.92e-07-3.68-3.690NEODyS: "Based on 702 optical observations (of which 4 are rejected as outliers) from 2013-10-08.856 to 2013-11-07.239."

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 7 November '13

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

2311Grabbed MPEC 2013-V38 - 2013 VK5 - see above
Grabbed MPEC 2013-V39 - 2013 VL5 - see above
Grabbed MPEC 2013-V40 - 2013 VM5 - see above
Grabbed MPEC 2013-V41 - 2013 VO5 - see above
1634Generated Traffic Report
1630Noted that JPL Sentry has updated its 2013 TV135 risk assessment - see above
Noted that NEODyS has updated its 2013 TV135 risk assessment - see above
Noted that JPL Sentry has removed 2013 VP4 as an impact risk - see above
Noted that JPL Sentry has removed 2013 VQ4 as an impact risk - see above
Noted that NEODyS has removed 2013 VQ4 as an impact risk - see above
Noted that NEODyS has posted 2013 VZ4 as an impact risk - see above
Grabbed MPEC 2013-V37 - Daily Orbit Update - see above