With the bright Moon, today's DOU MPEC canceled, and everyone distracted by the passage of current intruder 2005 YU55, it's a good time to catch up on some planetary radar news. 2010 AL30 [link fixed] was a January 2010 intruder and Goldstone in southern California was able to catch it in the act only three days after discovery using "a new delay-Doppler radar chirp waveform system" to make this "one of the smallest NEAs spatially resolved with radar to date" (see the four-frame composite above, credit NASA/JPL). And an October report tells about only the 15th radar detection of a comet, 45P/Honda-Mrkos-Pajdusakova, finding a 49-km. nucleus and "a systematic bias in many of the optical observations." See our Object Links page for links to other objects with radar news.
Contents on 8 November '11
- Radar Astrometry -- one object
- IAU Minor Planet Center
- Observers -- two observers
- Impact Risk Monitoring -- nothing to report
- Consolidated Risk Tables - the CRT page
Of 423 risk-listed objects, 25 have had news in the last 30 days. Updated at 1738 UTC on 8 Nov.
- Earth's Busy Neighborhood Traffic Report
Two objects are known to be within ten LD of Earth today. Updated at 0113 UTC on 8 Nov.
- Ephemerides for risk-rated & nearby objects + potential mission destinations
- News image catalog
- Object Links - mainly for radar targets & close passers - updated 8 Nov. 3x
- Old & new CRT Archive
- Old News Archive & Small Objects Archive
Radar Astrometry on 8 November '11
Radar observation of one object
Data update noted at 0257 UTC when the database was dated 7 Nov.
NEOCP Activity on 8 November '11
The MPC's NEO Confirmation Page has 6 listings
When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had six objects listed. Of these, five were "one nighters."
New MPECs on 8 November '11
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. No Daily Orbit Update DOU MPEC has been posted yet, so visit the MPC Status Page for possible explanation.
MPEC 2011-V32 - "02:08 UT" - Comet P/2011 P1 (McNaught)
- PK11P010 P/2011 P1 (McNaught) (Centaur, q=4.953 AU, Q=10.653 AU, TP=2010 July 23.90303 TT)
Observers on 8 November '11
Two observers appear in today's MPECs.
|Code||Observer / observatory|
|252||Goldstone DSS-13 34m antenna in southern California, 1 in radar -- 2005 YU55|
|253||Goldstone DSS-14 70m antenna in southern California, 1 in radar -- 2005 YU55|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 8 November '11
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.