Contents on 2 April '10
- IAU Minor Planet Center
- Observers -- five observing facilities
- Impact Risk Monitoring -- one object
- Consolidated Risk Tables - the CRT page
- Earth's Busy Neighborhood Traffic Report
- Ephemerides for risk-rated and nearby objects
- News image catalog
- Old & new CRT Archive
- Old News Archive & Small Objects Archive
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.
NEOCP Activity on 2 April '10
The MPC's NEO Confirmation Page has 13 listings: 8 new, 5 updated
When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eight new and five updated listings. Of these, two were "one nighters." So far The Tracking News has counted a total of fourteen listings on the NEOCP at some point 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 2 April '10
Minor Planet Electronic Circulars
As of last check at 2358 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- Observations of recently (no longer) risk-listed objects
- K10E44K 2010 EK44 (Q=5.042 AU, arc=19 days, H=19.6 ~407m) from Astronomical Research Obs. Westfield (ARO Westfield) (April 1.10-11p3)
- Observations of small asteroids (H>22.0)
- K10E11X 2010 EX11 (arc=29 days, H=24.2 ~49m) from ARO Westfield (April 1.07-08p5)
- Observations of other objects
- K10D34B 2010 DB34 (arc=39 days, H=19.5 ~426m) from ARO Westfield (April 1.12-13p3)
- K10CI0C 2010 CC180 (arc=2 opp, H=18.8 ~589m) from ARO Westfield (April 1.14-15p4)
- K10C18H 2010 CH18 (Q=4.093 AU, arc=52 days, H=18.9 ~562m) from Chabot Obs. (April 2.22-23p3)
- K04X50D 2004 XD50 (arc=2 opp, H=18.5 ~676m) from Jaen Obs. (April 1.94-95p2)
- J98K03N 1998 KN3 (q=0.195 AU, arc=2 opp, H=18.4 ~708m) from ARO Westfield (April 1.09-10p3)
- G3243 163243 2002 FB3 from WISE (March 30.23p1, 30.36p1, 30.49p1 & 30.62p1)
- 85839 85839 1998 YO4 from Mataro Obs. (March 31.84-85p3)
- 52750 52750 1998 KK17 from WISE (March 30.59p1, 30.72p1, 30.86p1, 30.92p1, 31.05p1, 31.19p2 & 31.32p1)
- 03554 3554 Amun (1986 EB) from Mataro Obs. (March 31.82-83p3)
Observers on 2 April '10
Five observing facilities appear in today's MPEC.
|Code||Observer / observatory|
|H21||Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 5 in MPEC 2010-G02 -- 2010 EX11, 2010 EK44, 2010 DB34, 2010 CC180, 1998 KN3|
|G58||Chabot Obs. in northern California, 1 in MPEC 2010-G02 -- 2010 CH18|
|J28||Jaen Obs. in Spain, 1 in MPEC 2010-G02 -- 2004 XD50|
|A06||Mataro Obs. in Spain, 2 in MPEC 2010-G02 -- 85839, 3554|
|C51||WISE in Earth polar orbit, 2 in MPEC 2010-G02 -- 52750, 163243|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 2 April '10
Notes for Today's Latest Risk Assessments
|2004 FU162||JPL Sentry||0601||2011-2108||955||5.8e-05||-5.32||-6.01||0||JPL: "Analysis based on 4 observations spanning .03055 days (2004-Mar-31.27744 to 2004-Mar-31.30799)." Diameter approximately 0.006 km. from mean, weighted H=29.0.|
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.