Contents on 10 February '12
- Traffic Report -- no objects
- IAU Minor Planet Center
- Observers -- seven observers
- Impact Risk Monitoring -- nothing to report
- Consolidated Risk Tables - the CRT page (archive)
Of 439 risk-listed objects, 26 have had news in the last 31 days. Updated at 1634 UTC on 10 Feb.
- Earth's Busy Neighborhood close passer EBN Traffic Report
No objects are known to be within ten LD of Earth today. Updated at 1727 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 27 Jan.
- 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 '12
No objects reported inside ten LD
No objects are reported traveling inside ten lunar distances (LD) of our planet today. Radar target 2011 CP4 arrives inside ten LD on February 22nd.
This report was posted at 1638 UTC with follow-up in today's DOU MPEC for 2011 CP4.
Notes: Ten LD has no astronomical significance but is a useful reporting boundary. Distances are interpreted by A/CC from JPL Horizons data. See also today's timeline plus current additional details, sky chart, and ephemerides.
NEOCP Activity on 10 February '12
The MPC's NEO Confirmation Page has 4 listings
When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four objects listed. Of these, two were "one nighters." So far The Tracking News has counted a total of six 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 '12
Minor Planet Electronic Circulars
As of last check at 2359 UTC, there have been three MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2012-C37 time-stamped "06:02 UT" - Daily Orbit Update - see below
- MPEC 2012-C38 time-stamped "21:10 UT" - Comet C/2012 C1 (McNaught) - see below
- MPEC 2012-C39 time-stamped "22:38 UT" - 2010 TH
MPEC 2012-C39 - "22:38 UT" - 2010 TH
- K10T00H 2010 TH (Centaur, q=12.589 AU, Q=24.733 AU, H=9.0 ~53.7 km) from NEAT's Mt. Palomar telescope (2002 Aug. 15.30p1, 2002 Aug. 15.37p1 & 2002 Aug. 30.31-36p3)
MPEC 2012-C38 - "21:10 UT" - Comet C/2012 C1 (McNaught)
- CK12C010 C/2012 C1 (McNaught) (i=95.7°, q=4.630 AU, TP=2013 Mar. 1.16774 TT) from the Siding Spring Survey (SSS) (Feb. 5.56-60p4, 5.67-68p2, 6.42-43p2 & 6.69-70p2), Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (Feb. 6.02-04p4, 7.02-04p4, 8.02-04p4, 9.02-04p3 & 10.03-04p5), Faulkes Telescope South (Feb. 6.44-45p4 & 10.45p3), Kevin Hills via RAS Obs. Moorook (Feb. 6.60p2 & 8.69-73p4), and Auger Obs. (Feb. 10.16-19p4)
- Observations of close-passing objects
- K11C04P 2011 CP4 (q=0.118 AU, arc=3 opp, H=21.2 ~195m, close passer, radar support) from Tim Lister via Faulkes Telescope North (Feb. 9.60p4)
- Observations of other asteroidal objects
- K12B20C 2012 BC20 (arc=19 days, H=18.5 ~676m) from Holmes/CTIO (Feb. 9.26-28p2)
- K11S26O 2011 SO26 (Q=4.133 AU, arc=142 days, H=20.7 ~245m) from Holmes/CTIO (Feb. 8.11p2, 8.16p1 & 9.08-09p3)
- K10L14J 2010 LJ14 (arc=2 opp, H=17.9 ~891m) from Holmes/CTIO (Feb. 9.37-39p4)
- K09A15M 2009 AM15 (arc=3 opp, H=18.8 ~589m) from Holmes/CTIO (Feb. 9.02-04p5)
- K03U22D 2003 UD22 (arc=4 opp, H=19.7 ~389m) from Holmes/CTIO (Feb. 9.33-34p3)
- K02E06M 2002 EM6 (arc=3 opp, H=20.1 ~323m) from Holmes/CTIO (Feb. 9.33-35p3)
- J98K03N 1998 KN3 (q=0.195 AU, arc=3 opp, H=18.4 ~708m) from Holmes/CTIO (Feb. 9.37-39p5)
Observers on 10 February '12
Seven observers appear in today's MPECs.
|Code||Observer / observatory|
|I47||Auger Obs. in Argentina, 1 in MPEC 2012-C38 -- C/2012 C1|
|807|||Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 8 in MPECs 2012-C37 & 2012-C38 -- C/2012 C1, 2012 BC20, 2011 SO26, 2010 LJ14, 2009 AM15, 2003 UD22, 2002 EM6, 1998 KN3|
|F65%||Tim Lister in southern California via Faulkes Telescope North in Hawaii, 1 in MPEC 2012-C37 -- 2011 CP4|
|E10||Faulkes Telescope South in New South Wales, 1 in MPEC 2012-C38 -- C/2012 C1|
|644||NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2012-C39 -- 2010 TH|
|D90`||Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2012-C38 -- C/2012 C1|
|E12||Siding Spring Survey in New South Wales, 1 in MPEC 2012-C38 -- C/2012 C1|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 10 February '12
At last check (NEODyS and JPL at 2359 UTC) there was no risk monitoring news to report yet today. Visit the CRT to view activity in the last four weeks and our ephemerides page for a complete list of risk-rated objects under current observation or having recent news.
Chronology on 10 February '12
Times are UTC for when items were noted or added by The Tracking News.
|2325||Grabbed MPEC 2012-C39 - 2010 TH - see above|
|2128||Grabbed MPEC 2012-C38 - Comet C/2012 C1 (McNaught) - see above|
|1638||Posted Traffic Report|
|1634||Grabbed MPEC 2012-C37 - Daily Orbit Update - see above|