Delta 3914 article 627/D141 successfully launched ESA's backup Orbital Test Satellite, OTS 2, into geosynchronous transfer orbit on 11 May 1978 after the loss of OTS 1.
Delta 3914 article 627/D141 successfully launched ESA's backup Orbital Test Satellite, OTS 2, into geosynchronous transfer orbit on 11 May 1978 after the loss of OTS 1.