Re: GSC 00445-01993

[aah@nofs.navy.mil]

I am not sure what Michael K. means by:
>For example, in AVE this period is not exactly where it should be 
>at the bottom of the curve, it's slightly to the right.
  A period can't be slightly to the right; the primary minimum
can be different than phase 0.000 if that is what you mean, for example
if the epoch is slightly in error (or the star's O-C is changing).
You appear to have a mix of observations since the quality definitely
varies; if you are mixing filtered and unfiltered observations, for
example, the ToM can be quite different between passbands depending
on the physical models of the stars and how well second-order extinction
has been handled.
Arne