Goldstone imagery of 2010 AL30 on 
on 13 Jan. 2011. Credit: NASA/JPL.

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


The latest A/CC news is available via framed access, RSS news feed RSS news feed, or redirection. - Note: A/CC has a main Web site and also a backup site with its own duplicate RSS news feed.

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.

Radar Astrometry  on 8 November '11

Radar observation of one object

The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:

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)

Observers  on 8 November '11

Two observers appear in today's MPECs.

CodeObserver / observatory
252Goldstone DSS-13 34m antenna in southern California, 1 in radar -- 2005 YU55
253Goldstone 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.

Chronology  on 8 November '11

Times are UTC for when items were noted or added by The Tracking News.

0257Grabbed MPEC 2011-V32 - Comet P/2011 P1 (McNaught) - see above
Noted Radar Astrometry database update - see above