Evaluate rendezvous Guidance and Navigation system with REP.
Demonstrate 8-day capability of spacecraft and crew. Evaluate effects
on weightlessness for 8-day flight. Spacecraft weight: 3605kg.
Secondary objectives included: Demonstrate controlled reentry
guidance. Evaluate fuel cell. Demonstrate all phases of guidance and
control system operation needed for rendezvous. Evaluate capability of
both crewmen to maneuver spacecraft to rendezvous. Checkout rendezvous
radar. Execute 17 experiments.
Launch:
August 21, 1965; 8:59:59.518am EST. A launch attempt on August 19
was postponed due to weather conditions and problems with loading
cryogenic fuel for the fuel cell.
Orbit:
Altitude: 349.8 km
Inclination: 32.61 degrees
Orbits: 120
Duration: 7 Days, 22 hours, 55 min, 14 seconds
Distance: km
Landing:
August 29, 1965. Landing was at 29deg44min North and 69deg 45min
West. Miss distance was 170.3km (92nm). Navy divers from the backup
recovery ship USS DuPont (DD-941) recovered the crew and transfered
them via helicopter to the USS Lake Champlain (crew onboard in 89
min).
Mission Highlights:
During the mission, problems developed with the fuel cell that
precluded rendezvous with the radar evaluation pod (REP). Primary
rendezvous G&N system with REP objective was not achieved. REP
rendezvous was not attempted due to a decision to power down fuel
cells.
Secondary objective to demonstrate controlled reentry guidance was
not achieved due to incorrect navigation coordinates transmitted to
the spacecraft computer from the ground. This caused an 89mile
overshoot of the landing zone. Experiment D-2, Nearby Object
Photography was not conducted when REP rendezvous was canceled.
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