Step 1
Also called P90 A or P90-1
Out
of service
|
27
Jun 1994
|
Cause
|
Destroyed
on launch with the launcher
|
Operated by USAF and built by TRW from an Eagle platform
It carried radio propagation experiments, a plasma environment analyser, the
CHAMPION ionosphere-magnetosphere coupling experiment, and an accelerometer and
mass spectrometer to study the upper atmosphere.
Prime
contractor
|
TRW
|
Platform
|
STEP
|
Mass
at launch
|
|
Mass
in orbit
|
|
Dimension
|
|
Solar
array
|
|
Stabilization
|
3-axis
|
DC
power
|
105
W
|
Design
lifetime
|
1
year
|