Re: Gorizont GEO Flasher (#21533)

Tony Beresford (
Sun, 28 Dec 1997 14:54:06 +1000

At 12:34 27/12/97 -0700, Ron Lee wrote:
>  Using his obs of 16 Dec and mine from 
>27 Dec 97, the rate of change of the period (decrease)
>is about double from earlier this year.
>Does this not imply some sort of outgassing from the
For such small changes I wonder I solar radiation pressure
can be adding angular momentum to the spin. the rate would
be variable through seasonal changes in the direction
of the Sun relative to rotation axis.
Tony Beresford