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Apollo 8 launched on December 21, 1968, and was the second crewed spaceflight mission flown in the United States Apollo space program (the first, Apollo 7, stayed in Earth orbit). Apollo 8 was the third flight and the first crewed launch of the Saturn V rocket.
Luggage is weighed as passengers check in at the airport. On commercial transportation, mostly with airlines, the baggage allowance is the amount of checked baggage or hand/carry-on luggage the company will allow per passenger. There may be limits on the amount that is allowed free of charge and hard limits on the amount that is allowed.
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The first crewed Apollo missions occurred in 1968. It was also the year in which Earth lifeforms first left low Earth orbit, during the successful Zond 5 mission to the Moon and the Zond 6 lunar mission which crashed upon return, and the year that humans first left low Earth orbit, during the successful Apollo 8 mission to the Moon.
NASA currently has a group of flight controllers at the Johnson Space Center in Houston for the International Space Station (ISS). The Space Shuttle flight control team (as well as those for the earlier Gemini, Apollo, and Skylab programs) were also based there.
The C-type mission, the first crewed flight of the CSM in Earth orbit, was performed by Apollo 7. The list was revised upon George Low's proposal to commit a mission to lunar orbit ahead of schedule, an idea influenced by the status of the CSM as a proven craft and production delays of the LM. [13]
Before a flight departs, the so-called passenger name list (PNL) is handed over to the departure control system that is used to check-in passengers and baggage. Reservation data such as the number of booked passengers and special service requests is also transferred to flight operations systems, crew management and catering systems.
The first three lunar missions (Apollo 8, Apollo 10, and Apollo 11) used a free return trajectory, keeping a flight path coplanar with the lunar orbit, which would allow a return to Earth in case the SM engine failed to make lunar orbit insertion. Landing site lighting conditions on later missions dictated a lunar orbital plane change, which ...