Astronaut Cernan then entered the LM, checked all techniques, and returned to the CM for the scheduled sleep period.On May 22 activation of the lunar module programs started at 11:Forty nine a.m. The spacecraft and S-IVB stage entered a parking orbit with a 185.5-kilometer apogee and a 181.5-kilometer perigee. Perigee: 229 km (142 mi). Perigee: 303 km (188 mi). Perigee: 166 km (103 mi). Payload: Apollo CSM 103 / LTA-B / S-IVB-503N. NASA launched Apollo 5 – the first, unmanned LM flight – on a Saturn IB from KSC Launch Complex 37B at 5:48:08 p.m. Launch Platform: LUT3. Launch Vehicle: Saturn V. Apollo 10 – . Bennington Main objectives of the mission have been to display the structural and thermal integrity of the space automobile and to verify adequacy of the Block II heatshield design for entry at lunar return conditions. The spacecraft was positioned in an angle with the thickest aspect of the CM heatshield away from the photo voltaic vector.

The spacecraft was positioned on its trajectory towards earth during the 34th lunar revolution. The second standup EVA lasted 55 minutes, ending at 67 hours 1 minute ground elapsed time. April 23 to allow additional time. 1972 April sixteen – . EST April 13, the crew reported an undervoltage alarm on the CSM important bus B, speedy loss of stress in SM oxygen tank No. 2, and dropping present in gas cells 1 and 3 to a zero reading. A gas cell stack failed at 54 hours 31 minutes, but the remaining 5 stacks shared the load and operated satisfactorily. Two fuel cell stacks failed and had to be shut down, while two others experienced important loss of energy. The first of two periods of standup EVA began at 19 hours 29 minutes into the flight and lasted for two hours 29 minutes. A second service propulsion system burn circularized the orbit with a 122.5-kilometer apolune and a 100.6-kilometer perilune.

The second midcourse correction, about sixty one hours into the flight, changed velocity by 1.5 kilometers per hour.The 4-minute 15-second lunar-orbit-insertion maneuver was made sixty nine hours after launch, putting the spacecraft in an preliminary lunar orbit of 310.6 by 111.2 kilometers from the moon’s floor – later circularized to 112.4 by 110.6 kilometers. The firing was scheduled to happen on the Cape Kennedy pass at the end of the second revolution, but couldn’t be accomplished. EST on February 4. At 2:Forty one a.m. EDT on July 19. Through the second lunar orbit a reside color telecast of the lunar floor was made. The Saturn V’s S-IVB stage and the spacecraft have been inserted into an earth parking orbit of 189.9 by 184.Four kilometers whereas the onboard programs were checked. A transearth injection maneuver at 5:23 p.m. Through the transearth coast, astronaut Worden carried out an inflight EVA starting at 11:32 a.m. EST November 21, the crew fired the service propulsion system engine, injecting the CSM into a transearth trajectory after 89 hours 2 minutes in lunar orbit. For that reason, a whole firing sequence was performed except that the thrust was inhibited.Parachute deployment was normal and the spacecraft landed about 9 hours 50 minutes after liftoff, within the mid-Pacific, 90.7 kilometers uprange from the predicted touchdown area (27.Forty N 157.Fifty nine W). During a more than two-hour umbilical EVA which began at 42 hours 48 minutes, Aldrin connected a 100-foot tether from the GATV to the spacecraft docking bar.