Contents  on 14 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 14 November '12

Eight objects reported inside ten LD

There are eight asteroids reported inside ten lunar distances (LD) of Earth today. Risk-listed intruder 2012 VJ38 leaves the Earth-Moon system, passing from 0.59 to 1.13 LD, and 2012 VC26 exits Earth's Hill sphere, moving from 3.38 to 4.33 LD.

More distantly, 2012 UY68 comes its closest to Earth this time around, reaching 6.71 LD at 0039 UTC. Newly announced risk-listed 2012 VS76 is inbound from 7.19 to 4.86 LD and newly discovered risk-listed 2012 VU76 from 8.69 to 8.32 LD. And 2012 UV136 is outbound from 6.74 to 7.26 LD and new discovery 2012 VR76 from 8.47 to 9.38 LD, and also just discovered risk-listed 2012 VV76 departs from inside ten LD, traveling from 8.12 to 10.86 LD.

Coming toward us next, newly announced 2012 VN76 arrives inside ten LD tomorrow, 2012 VB26 arrives on November 16th, and radar target 2010 JK1 on November 22nd.

This report was updated at 2137 UTC with six new discoveries: 2012 VV76 (MPEC), 2012 VU76 (MPEC), departed 2012 VT76 (MPEC), 2012 VS76 (MPEC), 2012 VR76 (MPEC), and 2012 VN76 (MPEC). Today's first traffic report was generated at 1711 UTC with follow-up in today's DOU MPEC for 2012 VJ38 and 2012 UY68.


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 14 November '12

The MPC's NEO Confirmation Page has 26 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 26 objects listed. Of these, seven were "one nighters." So far The Tracking News has counted a total of 42 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 14 November '12

Minor Planet Electronic Circulars

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


MPEC 2012-V92 - "19:20 UT" - 2012 VV76


MPEC 2012-V91 - "19:18 UT" - 2012 VU76


MPEC 2012-V90 - "19:15 UT" - 2012 VT76


MPEC 2012-V89 - "19:12 UT" - 2012 VS76


MPEC 2012-V88 - "19:10 UT" - 2012 VR76


MPEC 2012-V87 - "19:07 UT" - 2012 VQ76


MPEC 2012-V86 - "19:05 UT" - 2012 VP76


MPEC 2012-V85 - "19:02 UT" - 2012 VO76


MPEC 2012-V84 - "19:00 UT" - 2012 VN76


MPEC 2012-V83 - "18:57 UT" - 2012 VM76


MPEC 2012-V82 - "18:49 UT" - 2012 VK76


MPEC 2012-V81 - "16:01 UT" - 2009 XZ1


<< DOU on 14 Nov. '12 >>  MPEC 2012-V80 - "06:05 UT" - Daily Orbit Update

Observers  on 14 November '12

A total of 23 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 20 in MPECs 2012-V80, 2012-V82, 2012-V83, 2012-V86, 2012-V87, 2012-V88 & 2012-V89 -- 2012 VZ4, 2012 VZ25, 2012 VS76, 2012 VR76, 2012 VQ76, 2012 VP76, 2012 VN6, 2012 VM76, 2012 VK76, 2012 VJ38, 2012 VC37, 2012 VA5, 2012 UX68, 2012 UW68, 2012 US68, 2012 UG, 2012 TT78, 2012 TN139, 2007 HB, 2005 EY
621Bergisch Gladbach Obs. in Germany, 1 in MPEC 2012-V80 -- 2012 TQ139
703Catalina Sky Survey (CSS) in Arizona, 8 in MPECs 2012-V80, 2012-V82, 2012-V86 & 2012-V89 -- 2012 VS76, 2012 VP76, 2012 VK76, 2012 VE37, 2012 JR17, 2006 WN1, 17182, 155340
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 7 in MPEC 2012-V80 -- 2012 VG5, 2012 VC5, 2012 UY68, 2012 QE50, 2012 PW, 2012 LL9, 13553
G48Doc Greiner Research Obs. Rancho Hildalgo (DGRO-RH) in New Mexico, 5 in MPECs 2012-V80, 2012-V82, 2012-V85, 2012-V86 & 2012-V89 -- 2012 VS76, 2012 VP76, 2012 VO76, 2012 VK76, 2012 VF46
113Drebach Obs. in Germany, 3 in MPECs 2012-V82, 2012-V86 & 2012-V89 -- 2012 VS76, 2012 VP76, 2012 VK76
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 8 in MPECs 2012-V81, 2012-V82, 2012-V83, 2012-V86, 2012-V87, 2012-V88, 2012-V89 & 2012-V90 -- 2012 VT76, 2012 VS76, 2012 VR76, 2012 VQ76, 2012 VP76, 2012 VM76, 2012 VK76, 2009 XZ1
J95Great Shefford Obs. in England, 1 in MPEC 2012-V80 -- 2012 TT
C43Hoyerswerda Obs. in Germany, 2 in MPECs 2012-V82 & 2012-V89 -- 2012 VS76, 2012 VK76
H15ISON-NM Obs. in New Mexico, 1 in MPEC 2012-V80 -- 2012 JS11
B15Inastars Obs. in Germany, 2 in MPECs 2012-V82 & 2012-V86 -- 2012 VP76, 2012 VK76
704LINEAR in New Mexico, 12 in MPECs 2012-V80, 2012-V82 & 2012-V85 -- 2012 VZ25, 2012 VO76, 2012 VK76, 2012 VF46, 2012 QB17, 99907, 329669, 11284, 5587, 4947, 3908, 3360
B67Mirasteilas Obs. in Switzerland, 5 in MPEC 2012-V80 -- 2012 VE37, 2012 TJ146, 2008 XE2, 2008 HV4, 2006 WN1
G96Mt. Lemmon Survey (MLS) in Arizona, 11 in MPECs 2012-V80, 2012-V82, 2012-V83, 2012-V84, 2012-V86, 2012-V87, 2012-V88, 2012-V89, 2012-V90, 2012-V91 & 2012-V92 -- 2012 VV76, 2012 VU76, 2012 VT76, 2012 VS76, 2012 VR76, 2012 VQ76, 2012 VP76, 2012 VN76, 2012 VM76, 2012 VK76, 2012 UP27
A24New Millennium Obs. in Italy, 13 in MPEC 2012-V80 -- 2012 TA79, 2012 SQ56, 2012 JR17, 2012 HJ1, 2006 VB14, 68548, 329275, 277127, 192563, 153958, 11284, 3838, 2212
J43Oukaimeden Obs. in Morocco, 1 in MPEC 2012-V80 -- 137032
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 2 in MPEC 2012-V80 -- 2012 US136, 2012 QF49
854Sabino Canyon Obs. in Arizona, 5 in MPECs 2012-V82, 2012-V85, 2012-V86, 2012-V88 & 2012-V89 -- 2012 VS76, 2012 VR76, 2012 VP76, 2012 VO76, 2012 VK76
H36Sandlot Obs. in Kansas, 1 in MPEC 2012-V91 -- 2012 VU76
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2012-V80 -- 25143, 141079
291Spacewatch 1.8m telescope in Arizona, 7 in MPECs 2012-V80 & 2012-V90 -- 2012 VZ36, 2012 VT76, 2012 VO6, 2012 VA5, 2012 UZ33, 2012 UU136, 2012 UR138
954Teide Obs. in the Canary Islands, 1 in MPEC 2012-V82 -- 2012 VK76
H47Vicksburg Obs. in Mississippi, 3 in MPEC 2012-V80 -- 2002 TY68, 339492, 5646
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 14 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 VV76JPL Sentry20572056-210745.9e-07-6.53-6.600JPL: "Analysis based on 14 observations spanning 1.0274 days (2012-Nov-13.43413 to 2012-Nov-14.46156)." Diameter approximately 0.026 km. from mean, weighted H=25.6.
2012 VU76JPL Sentry21262015-2112591.4e-05-4.78-4.890JPL: "Analysis based on 18 observations spanning 1.0651 days (2012-Nov-13.43639 to 2012-Nov-14.50153)." Diameter approximately 0.024 km. from mean, weighted H=25.8.
2012 VS76JPL Sentry21262080-2102234.3e-05-5.54-6.190JPL: "Analysis based on 35 observations spanning .96276 days (2012-Nov-13.36169 to 2012-Nov-14.32445)." Diameter approximately 0.013 km. from mean, weighted H=27.0.
2012 VO76JPL Sentry21262027-2112907.8e-07-3.87-4.310JPL: "Analysis based on 9 observations spanning 1.1756 days (2012-Nov-13.23964 to 2012-Nov-14.41523)." Diameter approximately 0.200 km. from mean, weighted H=21.2.
2012 VJ38JPL Sentry17102031-2111632.5e-03-4.06-4.080JPL: "Analysis based on 43 observations spanning .98084 days (2012-Nov-12.23058 to 2012-Nov-13.21142)." Diameter approximately 0.007 km. from mean, weighted H=28.5.
NEODyS17102031-2098692.88e-04-5.04-5.070NEODyS: "Based on 43 optical observations (of which 1 are rejected as outliers) from 2012-11-12.231 to 2012-11-13.212."
2012 UY68NEODyS1710R E M O V E D-
JPL Sentry1710R E M O V E DJPL: Risk listing removed at 0953 UTC.

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 14 November '12

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

2137Updated Traffic Report
2126Noted that JPL Sentry has posted 2012 VO76 as an impact risk - see above
Noted that JPL Sentry has posted 2012 VS76 as an impact risk - see above
Noted that JPL Sentry has posted 2012 VU76 as an impact risk - see above
2057Noted that JPL Sentry has posted 2012 VV76 as an impact risk - see above
1931Grabbed MPEC 2012-V85 - 2012 VO76 - see above
Grabbed MPEC 2012-V86 - 2012 VP76 - see above
Grabbed MPEC 2012-V87 - 2012 VQ76 - see above
Grabbed MPEC 2012-V88 - 2012 VR76 - see above
Grabbed MPEC 2012-V89 - 2012 VS76 - see above
Grabbed MPEC 2012-V90 - 2012 VT76 - see above
Grabbed MPEC 2012-V91 - 2012 VU76 - see above
Grabbed MPEC 2012-V92 - 2012 VV76 - see above
1902Grabbed MPEC 2012-V82 - 2012 VK76 - see above
Grabbed MPEC 2012-V83 - 2012 VM76 - see above
Grabbed MPEC 2012-V84 - 2012 VN76 - see above
1710Noted that JPL Sentry has removed 2012 UY68 as an impact risk - see above
Noted that NEODyS has removed 2012 UY68 as an impact risk - see above
Noted that JPL Sentry has updated its 2012 VJ38 risk assessment - see above
Noted that NEODyS has updated its 2012 VJ38 risk assessment - see above
Grabbed MPEC 2012-V80 - Daily Orbit Update - see above
Grabbed MPEC 2012-V81 - 2009 XZ1 - see above