3D rendering of Lake Cheko 
Credit Tunguska Home Page

Ninety-nine years ago this morning something exploded high in the daylit sky over the Tunguska region of Siberia, flattening a forest area the size of a large city. Although no primary impact feature has been identified, the latest news (links reported Saturday through yesterday) has been that nearby Lake Cheko may be a possible secondary crater. This rendering of a 3D terrain model, viewed from the south, has the lake's water level 40 meters below actual to show the underlying shape. Credit: Tunguska Home Page at the University of Bologna.


Contents  on 30 June '07

WELCOME to A/CC's prototype daily news publication designed to be the viewing end of a planned autonomous 24-hour news service. The new tools and this publication format are working well enough now to share with readers. It is expected that this approach will require less time to maintain than our previous news and small asteroid pages, which were retired on May 14th. There's still more development ahead and there probably will be some glitches along the way, but this is what's needed to keep up with the increasing pace of minor-object news. The CRT page will be maintained separately for a little while longer, until all of this is working smoothly. And the CRT and small-asteroid ephemerides will be kept going.

Minor-Object News  on 30 June '07

Minor-Object Science  on 30 June '07

NEOCP Activity  on 30 June '07

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty and hasn't been noted by Major News as active yet today (last checked at 2358 UTC).

New MPECs  on 30 June '07

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there has been one MPEC issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


<< DOU on 30 June '07 >>  MPEC 2007-M57 - "06:07 UT" - Daily Orbit Update

Observers  on 30 June '07

One observing facility participated in today's MPECs.

A88Bolzaneto Obs. in Italy, 1 in MPEC 2007-M57 -- 85275

Impact Risk Monitoring  on 30 June '07

At last check (NEODyS and JPL at 2357 UTC) there was no risk monitoring news to report yet today.

Chronology  on 30 June '07

Times are UTC for when the items were noted by Major News.

1831Added MOS paper, "A Case Study of Low-Mass Star Formation" - see above
Added link to news story, "Professor steps down after 42 years"
Added link to news story, "Project to give Agri crater a new look"
1341Grabbed MPEC 2007-M57 - Daily Orbit Update - see above