Contents  on 28 July '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 28 July '12

One object reported inside ten LD

One visitor is reported moving within ten lunar distances (LD) of our planet today. 2012 OU1 leaves ten LD, moving from 9.82 to 11.25 LD. No other objects are known to approach this close until November.

This report was generated at 1652 UTC with follow-up in today's DOU MPEC for departed 2012 OQ.


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 28 July '12

The MPC's NEO Confirmation Page has 5 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had five objects listed. Of these, three were "one nighters." So far The Tracking News has counted a total of seven 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 28 July '12

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2012-O40 - "18:43 UT" - 2012 BS23


<< DOU on 28 July '12 >>  MPEC 2012-O39 - "06:02 UT" - Daily Orbit Update

Observers  on 28 July '12

Eleven observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2012-O40 -- 2012 BS23
160Castelmartini Obs. in Italy, 6 in MPEC 2012-O39 -- 2012 LU7, 2012 HG31, 331963, 329437, 326732, 265962
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2012-O39 -- 2012 KM45
C73Galati Obs. in Romania, 7 in MPEC 2012-O39 -- 2012 OO, 2012 LU7, 2008 YT30, 8035, 4947, 4581, 3752
A17Guidestar Obs. in Germany, 1 in MPEC 2012-O39 -- 4581
130Lumezzane Obs. in Italy, 10 in MPEC 2012-O39 -- 2012 OO, 2012 MU2, 2010 VC1, 2010 OS22, 2009 AV, 2008 YT30, 2000 RN77, 87311, 4581, 4487
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2012-O39 -- 276397
608NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2012-O39 -- 2005 YO180
A24New Millennium Obs. in Italy, 33 in MPEC 2012-O39 -- 2012 OQ, 2012 OO, 2012 OD1, 2012 NQ, 2012 NP, 2012 NO, 2012 NN, 2012 MM11, 2012 LE11, 2012 HG31, 2012 BC20, 2010 LG14, 2009 AV, 2008 YT30, 2008 JZ30, 2007 MT20, 2001 WN1, 2001 QG142, 331963, 329437, 329340, 304640, 219071, 20460, 173561, 163758, 162980, 153958, 138847, 8035, 4947, 4487, 1685
C23Olmen Obs. in Belgium, 1 in MPEC 2012-O39 -- 2012 OQ
J43Oukaimeden Obs. in Morocco, 1 in MPEC 2012-O39 -- 9202
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 28 July '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 28 July '12

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

1935Grabbed MPEC 2012-O40 - 2012 BS23 - see above
1652Generated Traffic Report
1648Grabbed MPEC 2012-O39 - Daily Orbit Update - see above