Contents  on 16 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 16 November '12

Ten objects reported inside ten LD

Today there are ten asteroids known to be within ten lunar distances (LD) of our planet. Inside Earth's Hill sphere, risk-listed intruder 2012 VJ38 heads away from 2.09 to 3.09 LD and risk-listed 2012 VS76 comes its closest to Earth on this passage, reaching 2.42 LD at 1546 UT.

Out further, risk-listed 2012 VU76 comes its closest to Earth this time around, coming to 8.06 LD at 1656 UT. Risk-listed 2012 VE77 is inbound from 8.14 to 5.65 LD and 2012 VN76 from 9.9 to 8.9 LD*, and 2012 VB26 comes inside ten LD, passing from 10.7 to 9.9 LD*. 2012 VC26 is outbound from 5.37 to 6.47 LD, 2012 UY68 from 7.11 to 7.60 LD, and 2012 UV136 from 7.86 to 8.52 LD, while intruder 2012 VH77 departs from inside ten LD, passing from 7.85 to 10.36 LD.

Approaching our neighborhood next, radar target 2010 JK1 arrives inside ten LD on November 22nd.

This report was generated at 1658 UTC with today's DOU MPEC with the recovery of, and first follow-up for departed 2012 VB37 and follow-up for 2012 VU76 and 2012 VS76 and for departed 2012 VV76 and 2012 UK171.


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 16 November '12

The MPC's NEO Confirmation Page has 14 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had fourteen objects listed. Of these, eight were "one nighters." So far The Tracking News has counted a total of 25 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 16 November '12

Minor Planet Electronic Circulars

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


MPEC 2012-W07 - "19:13 UT" - 2012 VF82


MPEC 2012-W06 - "19:10 UT" - 2012 VE82


MPEC 2012-W05 - "19:05 UT" - 2012 VC82


MPEC 2012-W04 - "18:06 UT" - 2010 XL69


MPEC 2012-W03 - "15:57 UT" - 2008 NB


<< DOU on 16 Nov. '12 >>  MPEC 2012-W02 - "06:05 UT" - Daily Orbit Update


MPEC 2012-W01 - "03:46 UT" - 2012 VF80

Observers  on 16 November '12

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

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 22 in MPECs 2012-W02, 2012-W03, 2012-W04, 2012-W06 & 2012-W07 -- 2012 VV76, 2012 VU76, 2012 VS76, 2012 VP76, 2012 VO76, 2012 VH46, 2012 VF82, 2012 VF46, 2012 VE82, 2012 VE6, 2012 VC37, 2012 VB37, 2012 VA20, 2012 US136, 2012 UQ138, 2012 TV231, 2012 SV20, 2012 SA22, 2012 OB1, 2010 XL69, 2008 NB, 2007 BM8
I74Baxter Garden Obs. in England, 1 in MPEC 2012-W07 -- 2012 VF82
621Bergisch Gladbach Obs. in Germany, 1 in MPEC 2012-W02 -- 2012 TQ139
300Bisei Spaceguard Center in Japan, 1 in MPEC 2012-W07 -- 2012 VF82
726Brainerd Obs. in Minnesota, 1 in MPEC 2012-W02 -- 330825
703Catalina Sky Survey (CSS) in Arizona, 6 in MPECs 2012-W02 & 2012-W07 -- 2012 VF82, 333358, 159533, 152742, 11284, 3200
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 7 in MPECs 2012-W01 & 2012-W02 -- 2012 VG46, 2012 VF80, 2012 QF42, 2012 KL45, 2001 SW269, 217430, 153219
822Cordoba Obs. in Argentina, 1 in MPEC 2012-W02 -- 1998 XX2
G48Doc Greiner Research Obs. Rancho Hildalgo (DGRO-RH) in New Mexico, 2 in MPECs 2012-W02 & 2012-W07 -- 2012 VS76, 2012 VF82
113Drebach Obs. in Germany, 1 in MPEC 2012-W07 -- 2012 VF82
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 2 in MPECs 2012-W02 & 2012-W07 -- 2012 VF82, 2012 SA22
151Eschenberg Obs. in Switzerland, 1 in MPEC 2012-W07 -- 2012 VF82
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2012-W07 -- 2012 VF82
C18Frasnes-Lez-Anvaing Obs. in Belgium, 3 in MPEC 2012-W02 -- 2012 US136, 2012 QF49, 3200
C73Galati Obs. in Romania, 5 in MPEC 2012-W02 -- 283729, 209924, 137805, 3200, 2201
J95Great Shefford Obs. in England, 1 in MPEC 2012-W07 -- 2012 VF82
C43Hoyerswerda Obs. in Germany, 1 in MPEC 2012-W07 -- 2012 VF82
B15Inastars Obs. in Germany, 1 in MPEC 2012-W07 -- 2012 VF82
246KLENOT in the Czech Republic, 3 in MPECs 2012-W02 & 2012-W07 -- 2012 VS76, 2012 VO76, 2012 VF82
046Klet Obs. in the Czech Republic, 1 in MPEC 2012-W02 -- 2012 US136
H05Kline Obs. in Colorado, 1 in MPEC 2012-W07 -- 2012 VF82
704LINEAR in New Mexico, 9 in MPECs 2012-W02 & 2012-W07 -- 2012 VJ77, 2012 VF82, 2012 TA219, 276397, 249886, 163899, 12711, 6047, 5646
844Los Molinos Obs. in Uruguay, 1 in MPEC 2012-W02 -- 3908
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2012-W05 -- 2012 VC82
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2012-W05 -- 2012 VC82
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2012-W02 -- 2012 TM139
118Modra Obs. in Slovakia, 2 in MPEC 2012-W02 -- 2012 VE46, 2012 SA22
G96Mt. Lemmon Survey (MLS) in Arizona, 7 in MPECs 2012-W02 & 2012-W07 -- 2012 VQ76, 2012 VM76, 2012 VF82, 2012 SA22, 2008 XE2, 90416, 5693
A24New Millennium Obs. in Italy, 10 in MPEC 2012-W02 -- 2012 TA79, 2012 SQ56, 2012 HJ1, 2006 VB14, 1999 VR6, 329275, 192563, 153958, 3838, 2212
F51Pan-STARRS 1 (PS1) in Hawaii, 4 in MPECs 2012-W01, 2012-W02, 2012-W05 & 2012-W06 -- 2012 VF80, 2012 VE82, 2012 VC82, 2008 XE2
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 2 in MPECs 2012-W02 & 2012-W07 -- 2012 VF82, 2012 VF46
854Sabino Canyon Obs. in Arizona, 1 in MPEC 2012-W07 -- 2012 VF82
H36Sandlot Obs. in Kansas, 3 in MPECs 2012-W02, 2012-W06 & 2012-W07 -- 2012 VF82, 2012 VE82, 2012 SA22
204Schiaparelli Obs. in Italy, 7 in MPEC 2012-W02 -- 2012 VH5, 2012 VG5, 2012 UK171, 2012 UA174, 2012 TK123, 2008 AV28, 2006 WX1
E12Siding Spring Survey in New South Wales, 1 in MPEC 2012-W02 -- 2012 PG5
291Spacewatch 1.8m telescope in Arizona, 5 in MPECs 2012-W01, 2012-W02, 2012-W06 & 2012-W07 -- 2012 VN7, 2012 VF82, 2012 VF80, 2012 VE82, 2010 EH43
I93St. Pardon de Conques Obs. in France, 1 in MPEC 2012-W07 -- 2012 VF82
926Tenagra II Obs. in Arizona, 1 in MPEC 2012-W02 -- 330825
I15Wishing Star Obs. in Rhode Island, 1 in MPEC 2012-W02 -- 2012 VE37
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 16 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 VE82JPL Sentry21122026-2107342.7e-08-5.19-5.950JPL: "Analysis based on 19 observations spanning 3.8226 days (2012-Nov-12.50247 to 2012-Nov-16.32503)." Diameter approximately 0.398 km. from mean, weighted H=19.6.
2012 VE77NEODyS16562033-203312.72e-05-4.69-4.690NEODyS: "Based on 24 optical observations (of which 2 are rejected as outliers) from 2012-11-14.178 to 2012-11-15.173."
2012 VV76JPL Sentry16562074-209439.9e-07-6.33-6.700JPL: "Analysis based on 17 observations spanning 1.8497 days (2012-Nov-13.43413 to 2012-Nov-15.283858)." Diameter approximately 0.027 km. from mean, weighted H=25.5.
NEODyS16562074-209847.45e-07-6.43-6.650NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2012-11-13.435 to 2012-11-15.285."
2012 VU76JPL Sentry16562080-211071.0e-05-5.81-5.830JPL: "Analysis based on 25 observations spanning 1.9390 days (2012-Nov-13.43639 to 2012-Nov-15.375342)." Diameter approximately 0.025 km. from mean, weighted H=25.7.
NEODyS16562092-209211.19e-08-8.66-8.660NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2012-11-13.437 to 2012-11-15.376."
2012 VS76JPL Sentry16562080-209193.5e-05-5.54-5.630JPL: "Analysis based on 56 observations spanning 2.4647 days (2012-Nov-13.36169 to 2012-Nov-15.82638)." Diameter approximately 0.014 km. from mean, weighted H=26.9.
NEODyS16562081-208551.85e-05-5.82-6.020NEODyS: "Based on 56 optical observations (of which 0 are rejected as outliers) from 2012-11-13.362 to 2012-11-15.827."
2012 VO76JPL Sentry16562064-210161.4e-07-4.78-4.950JPL: "Analysis based on 24 observations spanning 2.6241 days (2012-Nov-13.23964 to 2012-Nov-15.86373)." Diameter approximately 0.220 km. from mean, weighted H=20.9.
NEODyS16562050-207841.45e-07-4.75-4.90NEODyS: "Based on 24 optical observations (of which 0 are rejected as outliers) from 2012-11-13.240 to 2012-11-15.865."

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 16 November '12

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

2112Noted that JPL Sentry has posted 2012 VE82 as an impact risk - see above
1930Grabbed MPEC 2012-W05 - 2012 VC82 - see above
Grabbed MPEC 2012-W06 - 2012 VE82 - see above
Grabbed MPEC 2012-W07 - 2012 VF82 - see above
1809Grabbed MPEC 2012-W04 - 2010 XL69 - see above
1658Generated Traffic Report
1656Noted that NEODyS has posted 2012 VE77 as an impact risk - see above
Noted that JPL Sentry has updated its 2012 VO76 risk assessment - see above
Noted that NEODyS has updated its 2012 VO76 risk assessment - see above
Noted that JPL Sentry has updated its 2012 VS76 risk assessment - see above
Noted that NEODyS has updated its 2012 VS76 risk assessment - see above
Noted that JPL Sentry has updated its 2012 VU76 risk assessment - see above
Noted that NEODyS has updated its 2012 VU76 risk assessment - see above
Noted that JPL Sentry has updated its 2012 VV76 risk assessment - see above
Noted that NEODyS has updated its 2012 VV76 risk assessment - see above
Grabbed MPEC 2012-W02 - Daily Orbit Update - see above
Grabbed MPEC 2012-W03 - 2008 NB - see above
0535Grabbed MPEC 2012-W01 - 2012 VF80 - see above