Stacksat 1 to 3 & P87-2
Launch Success
Liftoff Time (GMT)
15:00:00
Wednesday April 11, 1990
Mission Details
Stacksat 1 to 3
(USA-56 to 58)
The U.S. military's STACKSAT mission involved the launch of three similar technology spacecraft, POGS & SSR, TEX and SCE.
Low Earth Orbit
3 Payloads
204 kilograms
P87-2
PDD (Prototype Deployment Device) was an experimental mechanical latch designed for use in zero-gravity, which was tested as a secondary payload on the Stacksat launch. It was attached to the payload adaptor situated between the Altair-3A upper stage and the bottom spacecraft.
1 Payload
Rocket
Launch Site
Stats
Atlas-Altair
1st
Mission
1st
Mission of 1990
1990
33rd
Orbital launch attempt