FW: Laser firing

Kulbinder Kalirai (KulbinderK@sluggo.pcdocs.com)
Thu, 23 May 1996 13:40:11 -0400

More information on laser firing.

I saw a beam of light that was coming from the shuttle. When I caught
it, the beam was 35-40 degrees long and disappeared just above the
horizon. I followed the shuttle for a 2-3 minutes and the beam got
shorter and shorter between the shuttle and the horizon. At one point,
the shuttle was almost invisible to the naked eye but the beam could
still be seen. Now that I think about it, there was a small gap between
the shuttle and where the beam started/became visible. It was definitely
there and I saw it both naked eye and through my 10X50 binoculars.

I wonder if the PAM/STU was emitting it?    

>----------
>From: 	PMALEY@GP808.jsc.nasa.gov[SMTP:PMALEY@GP808.jsc.nasa.gov]
>Sent: 	Thursday, May 23, 1996 11:53 AM
>To: 	seesat-l@iris01.plasma.mpe-garching.mpg.de
>Subject: 	Laser firing
>
>
>I saw the rather intriguing message on the net this morning reporting a
>
>laser firing from STS-77.  I followed this up and talked directly with
>the 
>Mission Manager at GSFC who is in charge of this experiment. Their team
>
>reports that:
>
>1) the laser is very low power (5 watts)  and has no visible emissions.
>It 
>is an infrared laser
>2) the laser was not powered at the time of the observation
>3) the laser is not directed at the ground; tests are being conducted
>with 
>the PAM/STU at selected times. The laser was powered on briefly today
>but it 
>was at 7:20 Eastern Time.
>
>So, all of this would lead one to believe that the report was of
>something 
>else. But, what was it?
>
>Paul Maley
>
>pmaley@gp808.jsc.nasa.gov
>
>