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Apollo 8 SIVB



The Apollo Saturn V SIVB was the third stage of the Saturn V booster. The SIVB consisted of a truncated cone with a bottom diameter of 10.06 m topped by a long cylinder with a diameter of 6.60 m. Total height was 17.80 m. It contained liquid hydrogen and liquid oxygen tanks and a J2 engine. It was launched into Earth orbit attached to the Command and Service Module (CSM). The SIVB provided the thrust to take the CSM from Earth orbit into a lunar transfer orbit. After achieving trajectory towards the Moon, the Apollo 8 CSM decoupled from the SIVB at 16:12 UT on 21 December 1968 and made a course correction to head for lunar orbit. The SIVB stage was put on a trajectory to fly by the Moon on 24 December after which it entered solar orbit.

Alternate Names

  • Apollo 8 Saturn V third stage
  • Apollo8SIVB
  • 03627

Facts in Brief

Launch Date: 1968-12-21
Launch Vehicle: Saturn 5
Launch Site: Cape Canaveral, United States
Mass: 13300 kg

Funding Agency

  • National Aeronautics and Space Administration (United States)


  • Planetary Science

Additional Information

Questions and comments about this spacecraft can be directed to: Dr. David R. Williams



NameRoleOriginal AffiliationE-mail
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