Apollo 13's primary mission objectives were to: "Perform selenological inspection, survey, and sampling of materials in a preselected region of the Fra Mauro Formation. Deploy and activate an Apollo Lunar Surface Experiments Package. Develop man's capability to work in the lunar environment.
Apollo 13 was NASA's third moon-landing mission, but the astronauts never made it to the lunar surface. During the mission's dramatic series of events, an oxygen tank explosion almost 56 hours into the flight forced the crew to abandon all thoughts of reaching the moon.
For the Apollo 13 mission, the blackout was much longer than normal because the flight path of the spacecraft was unexpectedly at a much shallower angle than normal.
At 9:00 p.m. EST on April 13, Apollo 13 was over 200,000 miles from Earth. The crew had just completed a television broadcast and was inspecting Aquarius, the Landing Module (LM). The next day, Apollo 13 was to enter the moon's orbit. Lovell and Haise were set to become the fifth and sixth men to walk on the moon.
(Since their trajectory had a higher lunar altitude than other Apollo missions, Apollo 13 set the record for farthest flight from Earth of 401,056 km [249,205 miles].)
3.5 Apollo 13
During the second period, the Commander, Command Module Pilot, and Lunar Module Pilot slept 5, 6, and 9 hours, respectively. The third sleep period was scheduled for 61 hours, but the orygen tank incident at 56 hours precluded sleep by any of the crew until approximately 80 hours.
At the outset of the program, NASA had formally established the target probability of overall success for each Apollo mission—a landing and return—at 90 percent. Overall crew safety was estimated at 99.9 percent.
The command module was dying, quickly. But the lunar lander, docked to the command module, was intact. Under the direction of Glynn Lunney, the flight director whose shift followed Mr. Kranz's, the Apollo 13 astronauts scrambled into the lunar module, which served as their lifeboat.
The crew of Apollo 13 had made it back to Earth safely. In Mission Control, pandemonium erupted as the exhausted flight controllers, joined by astronauts, managers and VIPs, rejoiced in the successful conclusion of a very perilous mission. monitoring the return of Apollo 13.
During the Apollo 13 mission, the LM environmental control system provided a habitable environment for about 83 hours (57:45 to 141:05 GET). Cabin temperature remained low due to low electrical power levels. This caused crew discomfort during much of this period, with cabin temperatures ranging between 49°F and 55 °F.
On April 13, 1970, Gerard Elverum's pintle injector rocket engine fired for 34 seconds to put the damaged Apollo 13 spacecraft on a safe path back to Earth. I'm Sam Lemonick and in this bonus episode of Stereo Chemistry, I'll be sharing the story of the science and serendipity behind that mostly unsung engine.
An curved arrow pointing right. There was no bathroom on the Apollo missions. Instead, NASA astronauts peed into a roll-on cuff, and pooped in bags that they kneaded, rolled up tight, and took back to Earth.
Because they were a little shallow on their re-entry angle, so took a longer flight path into the atmosphere.
And, it had scorched wiring insulation from being tested at incorrect voltages. all the oxygen tanks from that facility had a similar problem. Fixing both of these would most certainly have prevented the Apollo 13 accident.
"They would have missed the Earth and died a lonely death in space when their oxygen ran out," Chaikin said in the narration, with initial editions including the erroneous information. "Even more chilling," he added, "their bodies would never have returned, because Apollo 13 would have circled in space forever.
In all, 24 American astronauts made the trip from Earth to the Moon between 1968 and 1972. Three astronauts made the journey from Earth to the Moon twice: James Lovell (Apollo 8 and Apollo 13), John Young (Apollo 10 and Apollo 16), and Gene Cernan (Apollo 10 and Apollo 17).
Three weeks before the planned April 11 liftoff, backup LMP Duke and his family spent time with friends whose 3-year-old son came down with German measles, also known as rubella, the following week.
Mattingly had been scheduled to fly on the Apollo 13 mission, but three days prior to launch, he was held back and replaced by Jack Swigert due to exposure to German measles (which Mattingly did not contract).
The purpose of stirring the cryogenic tanks containing the hydrogen and oxygen was to give more accurate readings of how much gas was left. But because of an electrical fault, one of the oxygen tanks exploded. Initially the crew thought a meteoroid had hit them, but it soon became apparent they were losing oxygen.
The Apollo 13 mission was designated a successful failure because the crew was returned safely even though the odds were stacked against them. The success can be attributed to the amount of training and planning that goes into mission preparation.
Finding an unlikely hero in duct tape, NASA's ground team helped the astronauts create an adapter using the tape to connect spacesuit hoses and tube socks, saving Haise, Lovell, and Swigert.
Twelve men walked on the Moon during six Moon landings of the Apollo program between July 1969 and December 1972. All landed on the surface only once, and five missions consisted of two or more surface EVAs. Four of them are alive as of January 2023.
Discussions between the Apollo 13 crew
According to Jim Lovell, there were no discussions or fights, as portrayed in the movie. The most important thing for the crew at that point was to focus on their greatest goal: to return home.
Apollo 13 had now reached an altitude of more than 14,000 miles, and its velocity had slowed to 11,300 miles per hour as Earth's gravity continued its tug on the spacecraft.