Fresh lunar impact crater. 
Credit: NASA/GSFC/ASU LRO Camera team.

There's a new hole in the Moon, shown this week by the Lunar Reconnaissance Orbiter (LRO) Camera team, apparently one of five such discoveries mentioned in a July 27th Nature News report. This ten-meter crater on the northeast edge of Mare Tranquillitatis on the Moon's near side appeared between the August 1971 Apollo 15 image (left) and LRO's September 2009 image. NASA has had a program involving amateur observers since 2005 watching for such impacts (PDF with 200+ candidates). See also news from last September about fresh Mars craters. Credit: NASA/GSFC/ASU LRO Camera.

Contents  on 29 July '10


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.

NEOCP Activity  on 29 July '10

The MPC's NEO Confirmation Page has 16 listings: 12 new, 4 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had twelve new and four updated listings. Of these, four were "one nighters."

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 29 July '10

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 29 July '10 >>  MPEC 2010-O47 - "06:07 UT" - Daily Orbit Update

Observers  on 29 July '10

Six observing facilities appear in today's MPEC.

CodeObserver / observatory
160Castelmartini Obs. in Italy, 4 in MPEC 2010-O47 -- 161998, 7977, 4055, 4034
H15ISON-NM Obs. in New Mexico, 1 in MPEC 2010-O47 -- 2010 OC
J28Jaen Obs. in Spain, 1 in MPEC 2010-O47 -- 1865
B38Santa Mama Obs. in Italy, 1 in MPEC 2010-O47 -- 2010 MF1
673{program code "{" (31) via Table Mtn. Obs. in southern California, 1 in MPEC 2010-O47 -- 2010 OS22
C51WISE in Earth polar orbit, 10 in MPEC 2010-O47 -- 52750, 234061, 163243, 161999, 152558, 142464, 11500, 7822, 6050, 1685
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 29 July '10

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 29 July '10

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

1409Grabbed MPEC 2010-O47 - Daily Orbit Update - see above