Contents on 13 November '13
- Traffic Report -- four objects
- IAU Minor Planet Center
- Observers -- fifteen observers
- Impact Risk Monitoring -- three objects
Asteroid/Comet Connection (A/CC) Resources:
- Consolidated Risk Tables - the CRT page (archive)
Of 521 risk-listed objects, 39 have had news in the last 31 days. Updated at 1944 UTC on 13 Nov.
- Ephemerides for risk-rated & nearby objects + potential mission destinations
- News image catalog
- News old archive & Small Objects Archive
- Object Links - mainly for radar targets & close passers - (discontinued)
- Observing Campaigns
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 13 November '13
Four objects reported inside ten LD
There are four asteroids reported flying within ten lunar distances (LD) of Earth today. Radar target 2001 AV43 is inbound from 5.54 to 4.90 LD and 2011 JY1 from 7.37 to 6.70 LD, while the other two depart from inside ten LD: 2013 VK11 passes from 8.68 to 10.35 LD and intruder 2013 VJ11 from 8.97 to 11.03 LD.
Headed our way next, 2013 VK13 arrives inside ten LD on November 17th and radar target 2013 NJ arrives on November 19th.
This report was updated at 1940 UTC with the discovery of already departed risk-listed 2013 VW13 (MPEC). Today's first traffic report was generated at 1622 UTC, noting that additional radar astrometry was posted late yesterday for 2011 JY1 (not announced or listed as a radar target). No DOU MPEC has been issued yet today.
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 13 November '13
The MPC's NEO Confirmation Page has 15 listings
When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had fifteen objects listed. Of these, five were "one nighters." So far The Tracking News has counted a total of 23 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 13 November '13
Minor Planet Electronic Circulars
As of last check at 2359 UTC, there have been five MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts. No Daily Orbit Update DOU MPEC has been posted yet, so visit the MPC Status Page for possible explanation.
- MPEC 2013-V84 time-stamped "04:33 UT" - 2003 ME7 - see below
- MPEC 2013-V85 time-stamped "16:59 UT" - 2013 VV13 - see below
- MPEC 2013-V86 time-stamped "17:07 UT" - 2013 VW13 - see below
- MPEC 2013-V87 time-stamped "17:12 UT" - 2013 VX13 - see below
- MPEC 2013-V88 time-stamped "17:17 UT" - 2013 VY13
MPEC 2013-V88 - "17:17 UT" - 2013 VY13
- K13V13Y 2013 VY13 (H=21.0 ~214m) from the Catalina Sky Survey (CSS) (Nov. 12.37-39p3 & 12.44-46p3), McDonald Obs. (Nov. 12.45-46p2), Bisei Spaceguard Center (Nov. 12.76-77p5), Chelmsford Obs. (Nov. 12.87-88p3), Raheny Obs. (Nov. 12.88-90p3), Farra d'Isonzo Obs. (Nov. 12.91-94p3), New Millennium Obs. (Nov. 12.94-95p3), M57 Obs. (Nov. 12.97-99p2), Schiaparelli Obs. (Nov. 13.04-06p4), and Sandlot Obs. (Nov. 13.21-22p3)
MPEC 2013-V87 - "17:12 UT" - 2013 VX13
- K13V13X 2013 VX13 (small asteroid, Earth MOID=8.9 LD, H=22.1 ~129m) from the Mt. Lemmon Survey (MLS) (Nov. 12.35-38p4 & 12.44-45p4), Great Shefford Obs. (Nov. 12.98-99p3), Schiaparelli Obs. (Nov. 13.11-13p2), Sandlot Obs. (Nov. 13.14p1 & 13.19-20p2), and Astronomical Research Obs. Westfield (Nov. 13.33-35p3)
MPEC 2013-V86 - "17:07 UT" - 2013 VW13
- K13V13W 2013 VW13 (risk listed, Earth MOID=0.9 LD, i=3.5°, H=26.2 ~19m, close passer) from MLS (Nov. 12.17-23p7 & 12.34-37p4), the Spacewatch 1.8m telescope (Nov. 12.31p3), Great Shefford Obs. (Nov. 12.88-90p3), Schiaparelli Obs. (Nov. 12.92-95p3), and ARO Westfield (Nov. 13.17-18p3)
MPEC 2013-V85 - "16:59 UT" - 2013 VV13
- K13V13V 2013 VV13 (small asteroid, Earth MOID=8.9 LD, i=2.2°, H=24.1 ~51m) from MLS (Nov. 12.11-17p8 & 12.33p3), Spacewatch 1.8m (Nov. 12.29p2), Great Shefford Obs. (Nov. 12.92-95p3), and ARO Westfield (Nov. 13.09-11p3)
MPEC 2013-V84 - "04:33 UT" - 2003 ME7
Observers on 13 November '13
Fifteen observers appear in today's MPECs.
|Code||Observer / observatory|
|H21||Astronomical Research Obs. Westfield in Illinois, 3 in MPECs 2013-V85, 2013-V86 & 2013-V87 -- 2013 VX13, 2013 VW13, 2013 VV13|
|300||Bisei Spaceguard Center in Japan, 1 in MPEC 2013-V88 -- 2013 VY13|
|703||Catalina Sky Survey in Arizona, 1 in MPEC 2013-V88 -- 2013 VY13|
|970||Chelmsford Obs. in England, 1 in MPEC 2013-V88 -- 2013 VY13|
|595||Farra d'Isonzo Obs. in Italy, 1 in MPEC 2013-V88 -- 2013 VY13|
|J95||Great Shefford Obs. in England, 3 in MPECs 2013-V85, 2013-V86 & 2013-V87 -- 2013 VX13, 2013 VW13, 2013 VV13|
|K38||M57 Obs., 1 in MPEC 2013-V88 -- 2013 VY13|
|5682||David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2013-V84 -- 2003 ME7|
|711||McDonald Obs. in Texas, 1 in MPEC 2013-V88 -- 2013 VY13|
|G96||Mt. Lemmon Survey (MLS) in Arizona, 3 in MPECs 2013-V85, 2013-V86 & 2013-V87 -- 2013 VX13, 2013 VW13, 2013 VV13|
|A24||New Millennium Obs. in Italy, 1 in MPEC 2013-V88 -- 2013 VY13|
|J41||Raheny Obs. in Ireland, 1 in MPEC 2013-V88 -- 2013 VY13|
|H36||Sandlot Obs. in Kansas, 2 in MPECs 2013-V87 & 2013-V88 -- 2013 VY13, 2013 VX13|
|204||Schiaparelli Obs. in Italy, 3 in MPECs 2013-V86, 2013-V87 & 2013-V88 -- 2013 VY13, 2013 VX13, 2013 VW13|
|291||Spacewatch 1.8m telescope in Arizona, 2 in MPECs 2013-V85 & 2013-V86 -- 2013 VW13, 2013 VV13|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 13 November '13
Notes for Today's Latest Risk Assessments
|2013 VW13||JPL Sentry||1919||2074-2097||16||8.5e-05||-4.65||-4.85||0||JPL: "Analysis based on 23 observations spanning 1.0080 days (2013-Nov-12.17353 to 2013-Nov-13.181509)." Diameter approximately 0.019 km. from mean, weighted H=26.2.|
|2010 VP139||JPL Sentry||0503||2014-2109||116||2.1e-06||-7.63||-8.50||0||JPL: "Analysis based on 12 observations spanning .04588 days (2010-Nov-14.27911 to 2010-Nov-14.32499)." Diameter approximately 0.006 km. from mean, weighted H=28.7.|
|2009 VZ39||JPL Sentry||0503||2013-2110||786||6.9e-06||-6.26||-7.48||0||JPL: "Analysis based on 8 observations spanning .04342 days (2009-Nov-10.27204 to 2009-Nov-10.31546)." Diameter approximately 0.009 km. from mean, weighted H=27.9.|
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 13 November '13
Times are UTC for when items were noted or added by The Tracking News.
|1940||Updated Traffic Report|
|1919||Noted that JPL Sentry has posted 2013 VW13 as an impact risk - see above|
|1801||Grabbed MPEC 2013-V86 - 2013 VW13 - see above|
Grabbed MPEC 2013-V87 - 2013 VX13 - see above
Grabbed MPEC 2013-V88 - 2013 VY13 - see above
|1708||Grabbed MPEC 2013-V85 - 2013 VV13 - see above|
|0503||Noted that JPL Sentry has updated its 2009 VZ39 risk assessment - see above|
Noted that JPL Sentry has updated its 2010 VP139 risk assessment - see above
Grabbed MPEC 2013-V84 - 2003 ME7 - see above