Space Systems Command’s Space Test Program (STP)-3 integrated payload stack, which contains the STP Satellite (STPSat)-6 and the Long Duration Propulsive Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter (ESPA), or LDPE-1 […]
Space Systems Command’s Space Test Program (STP)-3 integrated payload stack, which contains the STP Satellite (STPSat)-6 and the Long Duration Propulsive Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter (ESPA), or LDPE-1 […]