Contents  on 8 November '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 8 November '12

Eleven objects reported inside ten LD

Eleven objects are reported to be inside ten lunar distances (LD) of our home world today. Within Earth's Hill sphere, newly announced 2012 VE26 comes its closest to Earth this time around, reaching 1.64 LD at 0103 UTC, and its closest to the Moon -- 2.63 LD at 0214 UTC.

Further out, newly announced 2012 VC26 is inbound from 5.24 to 4.19 LD, risk-listed 2012 VQ6 from 7.43 to 4.66 LD, 2012 VB5 from 7.24 to 4.97 LD, 2012 VA26 from 6.46 to 5.38 LD, 2012 UV136 from 6.19 to 5.92 LD, and risk-listed 2012 UY68 from 9.86 to 9.02 LD.

The outbound list has 2012 VD5 moving from 4.27 to 6.72 LD, 2012 UX136 from 4.60 to 5.61 LD, 2012 VL5 from 8.49 to 9.58 LD, and 2012 UL171 from 8.6 to 9.0 LD*.

On approach next, newly announced 2012 VB26 arrives inside ten LD on November 16th and radar target 2010 JK1 arrives on November 22nd.

This report was generated at 1840 UTC with new discoveries 2012 VE26 (MPEC), 2012 VC26 (MPEC), 2012 VB26 (MPEC), and 2012 VA26 (MPEC), and follow-up in today's DOU MPEC for 2012 VQ6, 2012 VB5, 2012 UV136, 2012 UY68, and departed 2012 VB20 and 2012 TU231.


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. "LD*" indicates some passage uncertainty. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.

NEOCP Activity  on 8 November '12

The MPC's NEO Confirmation Page has 35 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 35 objects listed. Of these, 23 were "one nighters." So far The Tracking News has counted a total of 65 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 8 November '12

Minor Planet Electronic Circulars

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


MPEC 2012-V58 - "19:59 UT" - Comet C/2012 V2 (LINEAR)


MPEC 2012-V57 - "13:27 UT" - 2012 VG26


MPEC 2012-V56 - "13:24 UT" - 2012 VF26


MPEC 2012-V55 - "13:22 UT" - 2012 VE26


MPEC 2012-V54 - "13:19 UT" - 2012 VD26


MPEC 2012-V53 - "13:17 UT" - 2012 VC26


MPEC 2012-V52 - "13:14 UT" - 2012 VB26


MPEC 2012-V51 - "13:12 UT" - 2012 VA26


MPEC 2012-V50 - "13:09 UT" - 2012 VZ25


<< DOU on 8 Nov. '12 >>  MPEC 2012-V49 - "06:06 UT" - Daily Orbit Update

Observers  on 8 November '12

A total of 39 observers appear in today's MPECs.

CodeObserver / observatory
300Bisei Spaceguard Center in Japan, 2 in MPECs 2012-V55 & 2012-V58 -- 2012 VE26, C/2012 V2
235CAST Obs. in Italy, 1 in MPEC 2012-V58 -- C/2012 V2
703Catalina Sky Survey (CSS) in Arizona, 12 in MPECs 2012-V49, 2012-V51 & 2012-V57 -- 2012 VQ6, 2012 VG26, 2012 VA26, 2012 LE11, 2007 TR65, 2001 UF18, 52762, 163364, 162142, 162004, 152742, 4487
470Ceccano Obs. in Italy, 1 in MPEC 2012-V58 -- C/2012 V2
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 7 in MPEC 2012-V49 -- 2012 VH6, 2012 VF5, 2012 UY68, 2012 UV136, 2012 TA259, 280136, 2062
958Dax Obs. in France, 1 in MPEC 2012-V58 -- C/2012 V2
448Desert Moon Obs. in New Mexico, 4 in MPEC 2012-V49 -- 2012 UV9, 2012 UV136, 2009 KT21, 326291
G48Doc Greiner Research Obs. Rancho Hildalgo (DGRO-RH) in New Mexico, 7 in MPECs 2012-V49, 2012-V51 & 2012-V58 -- 2012 VS6, 2012 VB5, 2012 VB20, 2012 VA26, C/2012 V2, 2010 WB3, 2005 WD
151Eschenberg Obs. in Switzerland, 1 in MPEC 2012-V49 -- 2008 HV4
734Farpoint Obs. in Kansas, 1 in MPEC 2012-V51 -- 2012 VA26
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2012-V58 -- C/2012 V2
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 1 in MPEC 2012-V49 -- 2012 UV136
F657Paul Roche in Wales via Faulkes Telescope North in Hawaii, 1 in MPEC 2012-V50 -- 2012 VZ25
C73Galati Obs. in Romania, 4 in MPEC 2012-V49 -- 2012 QF49, 88263, 333358, 5646
203GiaGa Obs. in Italy, 3 in MPECs 2012-V51, 2012-V53 & 2012-V57 -- 2012 VG26, 2012 VC26, 2012 VA26
J95Great Shefford Obs. in England, 2 in MPECs 2012-V50 & 2012-V51 -- 2012 VZ25, 2012 VA26
704LINEAR in New Mexico, 9 in MPECs 2012-V49, 2012-V50 & 2012-V58 -- 2012 VZ25, 2012 VB20, C/2012 V2, 2012 UR158, 2012 SA59, 2012 HJ1, 2005 WD, 333358, 256412
D54MASTER-II Obs. Blagoveshchensk in Russia, 1 in MPEC 2012-V58 -- C/2012 V2
H01Magdalena Ridge Obs. (MRO) in New Mexico, 8 in MPECs 2012-V49, 2012-V51, 2012-V52, 2012-V53, 2012-V55, 2012-V56 & 2012-V58 -- 2012 VF26, 2012 VE26, 2012 VC26, 2012 VB26, 2012 VA26, C/2012 V2, 2012 UR158, 2012 TU231
711McDonald Obs. in Texas, 2 in MPECs 2012-V54 & 2012-V58 -- 2012 VD26, C/2012 V2
C91Montevenere Obs., 1 in MPEC 2012-V58 -- C/2012 V2
900Moriyama Obs. in Japan, 1 in MPEC 2012-V58 -- C/2012 V2
G96Mt. Lemmon Survey (MLS) in Arizona, 10 in MPECs 2012-V49, 2012-V51, 2012-V52, 2012-V53, 2012-V54, 2012-V55 & 2012-V57 -- 2012 VG26, 2012 VE26, 2012 VD26, 2012 VC26, 2012 VB26, 2012 VA5, 2012 VA26, 2012 TQ139, 2012 HY1, 155334
A24New Millennium Obs. in Italy, 4 in MPECs 2012-V50, 2012-V51, 2012-V57 & 2012-V58 -- 2012 VZ25, 2012 VG26, 2012 VA26, C/2012 V2
F51Pan-STARRS 1 (PS1) in Hawaii, 6 in MPECs 2012-V49 & 2012-V56 -- 2012 VT6, 2012 VF26, 2007 UQ13, 2005 JU1, 2004 XH29, 338176
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 5 in MPEC 2012-V49 -- 2012 US136, 2012 TY79, 2012 QF49, 2005 SH19, 2002 TR190
H06*Rolando Ligustri in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2012-V58 -- C/2012 V2
H06`Erik Bryssinck in Belgium via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2012-V58 -- C/2012 V2
H06|Hidetaka Sato in Japan via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2012-V58 -- C/2012 V2
473Remanzacco Obs. in Italy, 2 in MPECs 2012-V50 & 2012-V58 -- 2012 VZ25, C/2012 V2
854Sabino Canyon Obs. in Arizona, 3 in MPECs 2012-V51, 2012-V53 & 2012-V55 -- 2012 VE26, 2012 VC26, 2012 VA26
H36Sandlot Obs. in Kansas, 6 in MPECs 2012-V50, 2012-V51, 2012-V53, 2012-V54, 2012-V56 & 2012-V57 -- 2012 VZ25, 2012 VG26, 2012 VF26, 2012 VD26, 2012 VC26, 2012 VA26
B74Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2012-V50 -- 2012 VZ25
204Schiaparelli Obs. in Italy, 6 in MPECs 2012-V50, 2012-V51, 2012-V53, 2012-V56, 2012-V57 & 2012-V58 -- 2012 VZ25, 2012 VG26, 2012 VF26, 2012 VC26, 2012 VA26, C/2012 V2
G68Sierra Stars Obs. in northern California, 1 in MPEC 2012-V58 -- C/2012 V2
587Sormano Obs. in Italy, 1 in MPEC 2012-V50 -- 2012 VZ25
691Spacewatch 0.9m telescope in Arizona, 4 in MPECs 2012-V49, 2012-V50 & 2012-V56 -- 2012 VZ25, 2012 VF26, 2012 TA79, 2002 PC11
291Spacewatch 1.8m telescope in Arizona, 23 in MPECs 2012-V49, 2012-V50, 2012-V51, 2012-V56, 2012-V57 & 2012-V58 -- 2012 VZ25, 2012 VO6, 2012 VJ6, 2012 VG26, 2012 VF26, 2012 VA26, C/2012 V2, 2012 UW136, 2012 UU136, 2012 UT169, 2012 US169, 2012 UR138, 2012 UR136, 2012 UQ18, 2012 UE34, 2012 UA34, 2012 TY52, 2012 TX284, 2012 TQ78, 2012 TP139, 2012 TH146, 2012 TG146, 2012 TF53
I52Steward Obs. Mt. Lemmon Station in Arizona, 1 in MPEC 2012-V49 -- 2012 VT6
A71Stixendorf Obs. in Austria, 1 in MPEC 2012-V58 -- C/2012 V2
C44Volta Obs. in Italy, 2 in MPECs 2012-V50 & 2012-V58 -- 2012 VZ25, C/2012 V2
718Wiggins Obs. in Utah, 1 in MPEC 2012-V58 -- C/2012 V2
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 8 November '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 VQ6NEODyS16052092-209214.74e-10-10.44-10.440NEODyS: "Based on 26 optical observations (of which 1 are rejected as outliers) from 2012-11-04.274 to 2012-11-07.334."
2012 VJ6JPL Sentry16052055-211199.5e-08-4.12-4.150JPL: "Analysis based on 17 observations spanning 3.2147 days (2012-Nov-04.16793 to 2012-Nov-07.3826)." Diameter approximately 0.573 km. from mean, weighted H=18.9.
NEODyS16052055-209981.03e-07-4.07-4.10NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2012-11-04.169 to 2012-11-07.383."
2012 UY68JPL Sentry1605209817.4e-09-8.58-8.580JPL: "Analysis based on 34 observations spanning 17.932 days (2012-Oct-20.30946 to 2012-Nov-07.24123)." Diameter approximately 0.034 km. from mean, weighted H=25.0.
NEODyS16052055-208121.51e-09-9.04-9.330NEODyS: "Based on 34 optical observations (of which 0 are rejected as outliers) from 2012-10-20.310 to 2012-11-07.242."
2012 UE34JPL Sentry16052092-211174.7e-07-5.90-6.170JPL: "Analysis based on 34 observations spanning 19.918 days (2012-Oct-18.393522 to 2012-Nov-07.31134)." Diameter approximately 0.079 km. from mean, weighted H=23.2.
2012 TU231JPL Sentry1605211114.1e-07-7.31-7.310JPL: "Analysis based on 34 observations spanning 23.262 days (2012-Oct-15.19373 to 2012-Nov-07.45608)." Diameter approximately 0.020 km. from mean, weighted H=26.2.

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 8 November '12

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

2030Grabbed MPEC 2012-V58 - Comet C/2012 V2 (LINEAR) - see above
1840Generated Traffic Report
1605Noted that JPL Sentry has updated its 2012 TU231 risk assessment - see above
Noted that JPL Sentry has updated its 2012 UE34 risk assessment - see above
Noted that JPL Sentry has updated its 2012 UY68 risk assessment - see above
Noted that NEODyS has updated its 2012 UY68 risk assessment - see above
Noted that JPL Sentry has updated its 2012 VJ6 risk assessment - see above
Noted that NEODyS has updated its 2012 VJ6 risk assessment - see above
Noted that NEODyS has posted 2012 VQ6 as an impact risk - see above
Grabbed MPEC 2012-V49 - Daily Orbit Update - see above
Grabbed MPEC 2012-V50 - 2012 VZ25 - see above
Grabbed MPEC 2012-V51 - 2012 VA26 - see above
Grabbed MPEC 2012-V52 - 2012 VB26 - see above
Grabbed MPEC 2012-V53 - 2012 VC26 - see above
Grabbed MPEC 2012-V54 - 2012 VD26 - see above
Grabbed MPEC 2012-V55 - 2012 VE26 - see above
Grabbed MPEC 2012-V56 - 2012 VF26 - see above
Grabbed MPEC 2012-V57 - 2012 VG26 - see above