Tuesday, October 11, 2005

Clear sky and fine Lacrosse trail

Clear skies again at last! Yesterday and today the sky
was bright blue. Yesterday evening I managed to get
two fine pictures of Lacrosse 4 (00-047A, #26473), one
as it sailed across Andromeda at about +2.0, the other
while it was entering eclipse in Pegasus (hence only
the start of the track was measured for the latter
image).

The first image yielded a splendid well-defined trail.

In all, 3 positions. The 3rd point is perhaps less good
as the 1st and 2nd, as the trail already was becoming
faint due to eclipse entry.

The delta T's are quite consistent internally: the
satellite was 1.5 seconds late relative to Mike's 10 day
old elset 05273.79219807.

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