| From: [email protected]
Date: 3 Dec 90 12:06:01 GMT
OGDEN, Utah (UPI) -- First there was NUSAT and then WEBERSAT. And now
Weber State College is ready with its third satellite -- ADSAT -- to shot
into space. All it needs is a ride.
NUSAT went into orbit aboard a space shuttle in April 1985, and
remained in space for 20 months. But the Challenger disaster in January
1986 temporarily grounded the shuttles and Weber State went to French
Ariane rocket to get WEBERSAT into space.
Now that the space shuttle program is back in business, Director Bob
Twiggs of Weber's Center for Aerospace Technology said the school hopes
ADSAT will be aboard a shuttle within the next year. It usually takes at
least 12 months, Twiggs said, for NASA to approve civilian lanch
requests.
ADSAT -- for Astronaut Deployed Satellite -- is one of the simplist
built by the center's students, said deputy director Will Clapp, manager
of the student project. The 16-inch square by 4-inch thick device looks
something like a large pizza box with a handle, said Clapp.
And, because it has its own power supply and is not connected to any
shuttle systems, the only things it needs are a little cargo space and
some of the astronauts' time, the Weber State professors said.
The satellite must be launched by an astronaut from outside the
shuttle. It really isn't much of a launch, Clapp said, because the
astronaut just points it and springs in the handle push the tiny craft
on its way.
``The astronaut carries it outdoors with him,'' said Clapp.
That does create a problem, he said, because the National Aeronautics
and Space Administration plans only two 1991 flights where astronauts
will take a space walk outside the shuttle.
``That narrows down our chances. And they're not going to go outside
if they don't have to. But, when they do, it will take just a few
minutes'' to fling ADSAT into orbit, said Clapp.
The 25-pound satellite is designed measure the Earth's magnetic field
and tell when it is in the Earth's shadow. It also can relay information
on the temperature and its power levels.
In additional to learning how to build a communications satellite,
the Weber State students will try to use the satellite's information to
compute its speed, orbit, distance from Earth, and rotation and spin.
And Twiggs said, with relatively simple and inexpensive
communications equipment and scanners, high school and junior high
students also should be able to monitor ADSAT's signals.
The sad part about the satellite is the shuttle will drop it off in a
low Earth orbit, less than 190 miles up. That means its orbit will decay
quickly, and ADSAT will burn up on re-entry after only up to about five
months of life.
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