Contents on 27 April '13
- Traffic Report -- one object
- IAU Minor Planet Center
- Observers -- nine observers
- Impact Risk Monitoring -- nothing to report
Asteroid/Comet Connection (A/CC) Resources:
- Consolidated Risk Tables - the CRT page (archive)
Of 505 risk-listed objects, 20 have had news in the last 30 days. Updated at 1432 UTC on 27 April.
- 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 20 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 27 April '13
One object reported inside ten LD
One asteroid is reported to be within a radius of ten lunar distances (LD) from Earth today. 2013 GH66 is outbound from 6.88 to 7.26 LD. No other objects are known to be coming inside ten LD until late July.
This report was generated at 1433 UTC.
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 27 April '13
The MPC's NEO Confirmation Page has 3 listings
When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three objects listed. Of these, two were "one nighters." So far The Tracking News has counted a total of four 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 27 April '13
Minor Planet Electronic Circulars
As of last check at 2359 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- Observation campaigns (radar support, potential mission destinations)
- G3249 163249 2002 GT (PMD) from Astronomical Research Obs. Westfield (April 25.39p2)
-- Potential mission destinations list & ephemerides + NHATS
- Observations of small asteroids (H>22.0)
- K13H11P 2013 HP11 (arc=8 days, H=25.5 ~27m) from Great Shefford Obs. (April 26.91-93p3)
- K13G69K 2013 GK69 (arc=15 days, H=23.8 ~59m) from Great Shefford Obs. (April 26.94-95p3)
- K12X55F 2012 XF55 (arc=140 days, H=22.7 ~98m) from ARO Westfield (April 26.09-11p3)
- Observations of other asteroidal objects
- K13H15T 2013 HT15 (arc=9 days, H=21.6 ~162m) from the Siding Spring Survey (SSS) (April 25.50p1)
- K13G84E 2013 GE84 (arc=13 days, H=19.6 ~407m) from Great Shefford Obs. (April 26.90-91p3)
- K13G79Z 2013 GZ79 (arc=27 days, H=19.7 ~389m) from the Palomar Transient Factory (PTF) (April 3.41-44p2, 5.45-51p3, 6.47-50p2 & 7.46-49p2) and Great Shefford Obs. (April 27.04-05p2)
- K13G68Y 2013 GY68 (Q=4.233 AU, arc=16 days, H=20.8 ~234m) from Great Shefford Obs. (April 27.02-03p3)
- K13F13Y 2013 FY13 (arc=33 days, H=20.5 ~269m) from ARO Westfield (April 26.22-24p7) and Great Shefford Obs. (April 26.93p3)
- K11W95U 2011 WU95 (arc=2 opp, H=19.2 ~490m) from ARO Westfield (April 25.30-31p3)
- K09SA4Q 2009 SQ104 (arc=2 opp, H=21.1 ~204m) from M57 Obs. (April 25.88-92p3) and South Obs. (April 26.94-95p3)
- K02J15W 2002 JW15 (arc=5 opp, H=20.1 ~323m) from ARO Westfield (April 26.11-12p4)
- K00GE7D 2000 GD147 (arc=5 opp, H=20.3 ~295m) from David Tholen's team on Mauna Kea (April 10.26-27p4)
- Z4952 354952 2006 FJ9 from ARO Westfield (April 25.27-29p6)
- R5974 275974 2001 XD from ARO Westfield (April 25.10-12p4)
- R4855 274855 2009 RB4 from ARO Westfield (April 26.18-20p4)
- H2722 172722 2004 BV102 from program code 4 via iTelescope Obs. Siding Spring (April 25.72-73p4)
- G3696 163696 2003 EB50 from Pan-STARRS 1 (PS1) (April 26.49-50p2)
- F2952 152952 2000 GC2 from ARO Westfield (April 26.08-09p3)
- F2941 152941 2000 FM10 from iTelObs-SSO/code 4 (April 25.69-70p8)
- E1670 141670 2002 JS100 from ARO Westfield (April 25.37-38p3)
- 07888 7888 1993 UC from ARO Westfield (April 26.24-27p8) and PS1 (April 26.41-43p6)
- 05645 5645 1990 SP from ARO Westfield (April 26.16-18p5)
- 04034 4034 Vishnu (1986 PA) from M57 Obs. (April 25.97-99p3) and South Obs. (April 26.91-93p3)
- 03199 3199 Nefertiti (1982 RA) from ARO Westfield (April 26.12-14p5)
- 01866 1866 Sisyphus (1972 XA) from ARO Westfield (April 26.20-22p6)
- 01685 1685 Toro (1948 OA) from ARO Westfield (April 26.14-16p5)
Observers on 27 April '13
Nine observers appear in today's MPEC.
|Code||Observer / observatory|
|H21||Astronomical Research Obs. Westfield in Illinois, 15 in MPEC 2013-H47 -- 2013 FY13, 2012 XF55, 2011 WU95, 2002 JW15, 354952, 275974, 274855, 163249, 152952, 141670, 7888, 5645, 3199, 1866, 1685|
|J95||Great Shefford Obs. in England, 6 in MPEC 2013-H47 -- 2013 HP11, 2013 GZ79, 2013 GY68, 2013 GK69, 2013 GE84, 2013 FY13|
|K38||M57 Obs., 2 in MPEC 2013-H47 -- 2009 SQ104, 4034|
|5682||David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2013-H47 -- 2000 GD147|
|I41||Palomar Transient Factory in southern California, 1 in MPEC 2013-H47 -- 2013 GZ79|
|F51||Pan-STARRS 1 (PS1) in Hawaii, 2 in MPEC 2013-H47 -- 163696, 7888|
|E12||Siding Spring Survey in New South Wales, 1 in MPEC 2013-H47 -- 2013 HT15|
|J84||South Obs. in England, 2 in MPEC 2013-H47 -- 2009 SQ104, 4034|
|Q624||program code 4 via iTelescope Obs. Siding Spring in New South Wales, 2 in MPEC 2013-H47 -- 172722, 152941|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 27 April '13
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.