Re: Phase Angle

Jeffrey C. Hunt (jhunt@eagle1.eaglenet.com)
Tue, 23 Sep 1997 22:25:39 -0400 (EDT)

But then, of course, you can also measure the angle between the
sun-observer-sat, and this would be the same as (the above - 180 degrees).

Jeff Hunt <jhunt@eagle1.eaglenet.com> 

On Tue, 23 Sep 1997, Sue J. Worden wrote:

> > Date: Tue, 23 Sep 1997 13:08:59 -0700 (PDT)
> > From: Jim Varney <sat_watcher@rocketmail.com>
> > Subject: re: the Iridium format
> > To: SeeSat-L@cds.plasma.mpe-garching.mpg.de
> > [ ... ]
> > What we really need to report is the angle subtended from sun to
> > satellite to observer.  Unfortunately I don't know of any readily
> > available program that calculates that.

 
> 	I was under the (mistaken?) impression that that angle
> 	*was* the phase angle.  From the QuickSat documentation:
> 
> 	   "The Phs value is the sun-object-observer angle.
> 	   A value of 0 indicates full phase, a value of 180
> 	   indicates new phase."
>