(meteorobs) IMO Video Meteor Database updated

[Sirko Molau]

Folks,

after I finished to check and archive the 2008 data, I have uploaded the latest
edition of the IMO Video Meteore Database to our homepage
http://www.imonet.org/database.html. The PosDat files do now contain 420,468
single station meteors recorded in 3,182 observing nights and 95,553 hours of
effective observing time between 1993/01/02 and 2008/12/31.

A little anecdote: When the PosDat format was invented, a three letter index was
considered sufficient to link meteors in the data file to observing sessions in
the header file. After all, that make up for 26^3=17,576 observing sessions.
Well, by Dec 2008 we had collected 17,498 sessions (one session per camera and
night) and got to the index ZWZ. When writing this we will have jumped over
three three letter limit, and next time I will have to use both letter and
digits. That gives me a total of 36^3=46,656 header entries which should be
sufficient for the next 2..3 years. ;-)

Best,
Sirko

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