Contents  on 4 June '12

Asteroid/Comet Connection (A/CC) Resources:

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.

Traffic Report  on 4 June '12

Three objects reported inside ten LD

There are three asteroids reported inside ten lunar distances (LD) of our planet today. 2012 LA is outbound from 8.0 to 8.2 LD* while 2012 KT12 departs from inside ten LD, passing from 9.31 to 10.11 LD, and 2012 KC45 also leaves ten LD, moving from 9.84 to 11.19 LD.

No other objects are known to come within ten LD until November.

This report was generated at 1504 UTC with follow-up in today's DOU MPEC for 2012 LA and 2012 KZ41.


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. "LD*" indicates some passage uncertainty. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.

NEOCP Activity  on 4 June '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 five 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 4 June '12

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.


<< DOU on 4 June '12 >>  MPEC 2012-L10 - "06:03 UT" - Daily Orbit Update

Observers  on 4 June '12

Six observers appear in today's MPEC.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 13 in MPEC 2012-L10 -- 2012 LA, 2012 KX, 2012 KO18, 2012 KN18, 2012 KM45, 2012 KF47, 2012 KC6, 2012 JB16, 2012 HS15, 2012 FJ, 2012 DU30, 2010 LJ14, 2006 VY13
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 4 in MPEC 2012-L10 -- 2012 KZ3, 2012 KL18, 2012 JW11, 2012 JQ4
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2012-L10 -- 2010 OS22
H23Pear Tree Obs. in Florida, 1 in MPEC 2012-L10 -- 2007 LE
204Schiaparelli Obs. in Italy, 7 in MPEC 2012-L10 -- 2012 KZ41, 2012 KO18, 2012 JB16, 2012 HN40, 2012 HJ1, 2012 DH61, 2007 LE
C36Starry Wanderer Obs. in Belarus, 1 in MPEC 2012-L10 -- 2011 WV134
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 4 June '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 4 June '12

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

1504Generated Traffic Report
1501Grabbed MPEC 2012-L10 - Daily Orbit Update - see above