Contents on 10 February '13
- Traffic Report -- five objects
- IAU Minor Planet Center
- Observers -- 26 observers
- Impact Risk Monitoring -- one object
Asteroid/Comet Connection (A/CC) Resources:
- Consolidated Risk Tables - the CRT page (archive)
Of 478 risk-listed objects, 23 have had news in the last 31 days. Updated at 1717 UTC on 10 Feb.
- 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 - updated 3 Feb.
- 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 10 February '13
Five objects reported inside ten LD
Five objects are reported to be within ten lunar distances (LD) of our planet today. Radar target 2013 BS45 is inbound from 5.08 to 4.94 LD, radar target 2013 BV15 from 7.13 to 5.63 LD, and intruder 2012 DA14 (risk-listed radar target) from 8.12 to 6.74 LD, while 2013 BA74 is outbound from 7.39 to 8.72 LD and risk-listed intruder 2013 CY from 7.61 to 8.21 LD.
Up next, risk-listed 2007 EO88 arrives inside ten LD on March 15th.
This report was generated at 1718 UTC with follow-up in today's DOU MPEC for 2013 BV15 and 2012 DA14.
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 10 February '13
The MPC's NEO Confirmation Page has 39 listings
When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 39 objects listed. Of these, 35 were "one nighters." So far The Tracking News has counted a total of 53 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 10 February '13
Minor Planet Electronic Circulars
As of last check at 2358 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2013-C43 time-stamped "06:03 UT" - Daily Orbit Update - see below
- MPEC 2013-C44 time-stamped "21:49 UT" - 2013 CT36
MPEC 2013-C44 - "21:49 UT" - 2013 CT36
- K13C36T 2013 CT36 (Q=4.372 AU, H=19.2 ~490m) from the Catalina Sky Survey (CSS) (Feb. 7.43-45p4 & 7.51-52p3), iTelescope Obs. Mayhill (Feb. 7.48-51p9), Bernezzo Obs. (Feb. 7.91-92p5), Betelgeuse Station (Feb. 8.03-04p5), GiaGa Obs. (Feb. 8.07-08p2), Schiaparelli Obs. (Feb. 8.19-20p3), McDonald Obs. (Feb. 8.33-34p3), Desert Moon Obs. (Feb. 8.38-40p5), the Mt. Lemmon Survey (MLS) (Feb. 8.39p3), Sayn Solar Obs. (Feb. 8.77-78p6), Nonndorf Obs. (Feb. 8.93-96p5), Volta Obs. (Feb. 8.94-95p4), Dax Obs. (Feb. 8.99-01p3), St. Pardon de Conques Obs. (Feb. 9.04-05p3), Moriyama Obs. (Feb. 9.59-61p3), Teide Obs. (Feb. 10.19-21p3), and Rusty Mtn. Obs. (Feb. 10.52-54p6)
- Observations of risk-listed objects
- K12D14A 2012 DA14 (small asteroid, Q=0.992 AU, arc=2 opp, H=24.2 ~49m, close passer, radar support) from Mt. John Obs. (Feb. 9.40-43p8 & 9.48-53p8) and Tim Lister via Faulkes Telescope South (Feb. 9.42-45p15)
- Observations of recently (no longer) risk-listed objects
- K13B15V 2013 BV15 (small asteroid, arc=23 days, H=24.2 ~49m, close passer, radar support) from Nonndorf Obs. (Feb. 8.92-93p3)
- Observations of small asteroids (H>22.0)
- K13C35R 2013 CR35 (arc=3 days, H=22.4 ~112m) from Tesla Obs. (Feb. 10.02-05p4)
- Observations of other asteroidal objects
- K13B73N 2013 BN73 (arc=19 days, H=20.2 ~309m) from David Tholen's team on Mauna Kea (Feb. 9.43-44p3)
- K13A60V 2013 AV60 (arc=31 days, H=18.7 ~616m) from Tholen team/Mauna Kea (Feb. 9.36p3)
- K12X93S 2012 XS93 (q=0.302 AU, arc=63 days, H=19.8 ~371m) from Tholen team/Mauna Kea (Feb. 9.32p3)
- K12Q17P 2012 QP17 (Q=4.682 AU, arc=179 days, H=18.6 ~645m) from Pan-STARRS 1 (PS1) (Feb. 9.44-47p3)
- K12C29D 2012 CD29 (q=0.360 AU, arc=2 opp, H=19.9 ~355m) from PS1 (Feb. 9.38-43p3)
- K08D17G 2008 DG17 (i=41.1°, arc=2 opp, H=19.7 ~389m) from Moriyama Obs. (Feb. 9.49-50p4) and Bernezzo Obs. (Feb. 9.86p13)
- K05Y96Q 2005 YQ96 (Q=0.992 AU, arc=3 opp, H=20.4 ~282m) from PS1 (Feb. 9.23-25p4)
- K02B26P 2002 BP26 (arc=4 opp, H=19.1 ~513m) from iTelObs-Mayhill (Feb. 9.22-24p3)
- Y8776 348776 2006 KZ37 from CSS (Feb. 9.21-22p4)
- X8049 338049 2002 NY31 from PS1 (Feb. 9.49-53p4)
- W9669 329669 2003 UD8 from PS1 (Feb. 9.23-24p3)
- Q1938 261938 2006 OB5 from PS1 (Feb. 9.38-42p4)
- O9886 249886 2001 RY11 from PS1 (Feb. 9.44-48p4)
- O2450 242450 2004 QY2 from Los Molinos Obs. (Feb. 9.24-26p4)
- N0111 230111 2001 BE10 from Los Molinos Obs. (Feb. 9.14-15p4)
- J8752 198752 2005 EA60 from Purple Mtn. Obs. Xuyi Station (Feb. 8.73-76p3)
- H7016 177016 2003 BM47 from PS1 (Feb. 9.38-42p4)
- F4988 154988 2004 XN35 from PS1 (Feb. 9.38-41p3)
- F3249 153249 2001 BW15 from CSS (Feb. 9.21-22p4)
- F2667 152667 1998 FR11 from PS1 (Feb. 9.23-24p3)
- 88263 88263 2001 KQ1 from Los Molinos Obs. (Feb. 9.02-08p3)
- 04179 4179 Toutatis (1989 AC) from Kurihara Obs. (Feb. 2.43-44p3)
- 03554 3554 Amun (1986 EB) from Les Engarouines Obs. (Feb. 9.16-21p3)
- 03288 3288 Seleucus (1982 DV) from PS1 (Feb. 9.23-24p4)
Observers on 10 February '13
A total of 26 observers appear in today's MPECs.
|Code||Observer / observatory|
|C77||Bernezzo Obs. in Italy, 2 in MPECs 2013-C43 & 2013-C44 -- 2013 CT36, 2008 DG17|
|B75||Betelgeuse Station in Italy, 1 in MPEC 2013-C44 -- 2013 CT36|
|703||Catalina Sky Survey (CSS) in Arizona, 3 in MPECs 2013-C43 & 2013-C44 -- 2013 CT36, 348776, 153249|
|958||Dax Obs. in France, 1 in MPEC 2013-C44 -- 2013 CT36|
|448||Desert Moon Obs. in New Mexico, 1 in MPEC 2013-C44 -- 2013 CT36|
|E100||Tim Lister in southern California via Faulkes Telescope South in New South Wales, 1 in MPEC 2013-C43 -- 2012 DA14|
|203||GiaGa Obs. in Italy, 1 in MPEC 2013-C44 -- 2013 CT36|
|D95||Kurihara Obs. in Japan, 1 in MPEC 2013-C43 -- 4179|
|A14||Les Engarouines Obs. in France, 1 in MPEC 2013-C43 -- 3554|
|844||Los Molinos Obs. in Uruguay, 3 in MPEC 2013-C43 -- 88263, 242450, 230111|
|5682||David Tholen's team on Mauna Kea in Hawaii, 3 in MPEC 2013-C43 -- 2013 BN73, 2013 AV60, 2012 XS93|
|711||McDonald Obs. in Texas, 1 in MPEC 2013-C44 -- 2013 CT36|
|900||Moriyama Obs. in Japan, 2 in MPECs 2013-C43 & 2013-C44 -- 2013 CT36, 2008 DG17|
|474||Mt. John Obs. in New Zealand, 1 in MPEC 2013-C43 -- 2012 DA14|
|G96||Mt. Lemmon Survey in Arizona, 1 in MPEC 2013-C44 -- 2013 CT36|
|C47||Nonndorf Obs. in Austria, 2 in MPECs 2013-C43 & 2013-C44 -- 2013 CT36, 2013 BV15|
|F51||Pan-STARRS 1 (PS1) in Hawaii, 11 in MPEC 2013-C43 -- 2012 QP17, 2012 CD29, 2005 YQ96, 338049, 329669, 261938, 249886, 177016, 154988, 152667, 3288|
|D29||Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2013-C43 -- 198752|
|V05||Rusty Mtn. Obs., 1 in MPEC 2013-C44 -- 2013 CT36|
|C48||Sayn Solar Obs. in Russia, 1 in MPEC 2013-C44 -- 2013 CT36|
|204||Schiaparelli Obs. in Italy, 1 in MPEC 2013-C44 -- 2013 CT36|
|I93||St. Pardon de Conques Obs. in France, 1 in MPEC 2013-C44 -- 2013 CT36|
|954||Teide Obs. in the Canary Islands, 1 in MPEC 2013-C44 -- 2013 CT36|
|I76||Tesla Obs. in Spain, 1 in MPEC 2013-C43 -- 2013 CR35|
|C44||Volta Obs. in Italy, 1 in MPEC 2013-C44 -- 2013 CT36|
|H06||iTelescope Obs. Mayhill in New Mexico, 2 in MPECs 2013-C43 & 2013-C44 -- 2013 CT36, 2002 BP26|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 10 February '13
Notes for Today's Latest Risk Assessments
|2012 DA14||JPL Sentry||1714||2080-2112||3||6.4e-06||-5.08||-5.08||0||JPL: "Analysis based on 249 observations spanning 352.50 days (2012-Feb-23.03431 to 2013-Feb-09.53123)." Diameter approximately 0.050 km. from mean, weighted H=24.1.|
|NEODyS||1714||2080-2098||8||8.33e-05||-3.97||-4.0||0||NEODyS: "Based on 252 optical observations (of which 4 are rejected as outliers) from 2012-02-23.029 to 2013-02-09.532."|
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 10 February '13
Times are UTC for when items were noted or added by The Tracking News.
|2201||Grabbed MPEC 2013-C44 - 2013 CT36 - see above|
|1718||Generated Traffic Report|
|1714||Noted that JPL Sentry has updated its 2012 DA14 risk assessment - see above|
Noted that NEODyS has updated its 2012 DA14 risk assessment - see above
Grabbed MPEC 2013-C43 - Daily Orbit Update - see above