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The Challanger Disaster

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Julia Andersson

on 3 May 2013

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Transcript of The Challanger Disaster

The Challenger Disaster
January 28th, 1986 Megan Gallagher, Julia Andersson and Emily Ma-Luongo January 28, 1986 The Challenger launched from the Kennedy Space Center (KSC) in Florida on January 28th 1986. The spaceship was supposed to carry some cargo out in space (The Tracking Data Relay Satellite-2) and also fly the Shuttle-Pointed Tool for Astronomy/Halley's Comet Experiment Deployable, which was a free-flying module that was supposed to observe tail and coma of Halleys comet with two ultraviolet spectrometers and two cameras. Who and Why? Work Cited http://www.space.com/18084-space-shuttle-challenger.html
http://space.about.com/cs/challenger/a/challenger.htm
http://news.nationalgeographic.com/news/2011/01/pictures/110127-challenger-disaster-space-shuttle-25th-anniversary-myths-science-nasa/
http://er.jsc.nasa.gov/seh/explode.html
http://www.citizensinspace.org/teachers-in-space-the-history/
http://usatoday30.usatoday.com/tech/science/space/2011-01-26-1Achallenger26_CV_N.htm
http://www.npr.org/2011/01/27/133238665/25-years-after-challenger-space-still-dangerous
http://www.pbs.org/wgbh/americanexperience/features/primary-resources/reagan-challenger/
http://www.cbo.gov/sites/default/files/cbofiles/ftpdocs/62xx/doc6240/doc08a.pdf
http://history.nasa.gov/riderep/leadinit.htm
http://www.nytimes.com/2010/04/16/science/space/16nasa.html?_r=0
http://www.whitehouse.gov/sites/default/files/national_space_policy_6-28-10.pdf
http://www.nasaspaceflight.com/2011/01/1983-1986-missions-history-space-shuttle-challenger/ Shuttle Mission STS-51L The mission of the Challenger faced difficulty early on. It was scheduled to take off on January 22nd. It was pushed to the 23rd and then the 24th because of delays in another mission, 61-C. Because of bad weather and other circumstances the launch was pushed until early morning on January 27th.
However, when the ground servicing equipment hatch closing fixture could not be removed from the orbiter hatch, the mission was delayed another 24 hours. During this delay the weather had changed and the cross winds exceeded return-to-launch-site limits at the KSC's Shuttle Landing Facility. The launch on January 28th was delayed two hours when the hardware and system that monitors the fire detection system failed. Finally, NASA officials overruled the engineers, who still showed concern, and ordered lift off at 11.38 AM on that cold January morning Consequences
of the Disaster Space Budget & Policy Hunger to Explore the Universe Victims of the Disaster As a result of the disaster, Congress poured money into NASA. In 1986, the budget was $15.5 billion (with today's inflation). Just a year after the accident, it soared to $21 billion, and continued to climb for another 5 years. Francis R. Scobee, Commander Michael J. Smith, Pilot Ronald McNair, Mission Specialist Ellison Onizuka, Mission Specialist Judith Resnik, Mission Specialist Greg Jarvis, Payload Specialist Christa McAuliffe, Payload Specialist Teacher in Space Project The project was terminated 4 years after the disaster. It was replaced with the Educator Astronaut Project, which instead of returning educators to classrooms after space travel, sought to give them a chance of joining the NASA astronaut corp. full time. 73 Seconds "All of America will be reminded of the crucial role that teachers and education play in the life of our nation. I can’t think of a better lesson for our children and our country" Ronald Reagan 73 seconds into the flight the Challenger disintegrated. It was at an altitude of 46,000 feet and at about twice the speed of sound. In 2012, the Program was renamed the Citizens in Space in an effort to expand the program beyond public school teachers. "reconstitution"
costs space flight controls investigation expenses shuttle system modifications replacement of equipment lost shuttle fleet shrunk from 4 to 3 important shuttle missions put on hold or canceled A comets tail and coma are illuminated when passing through the inner solar system and then becomes visible from the Earth. What Happened?
The TISP (Teachers In Space Program) was supposed to be launched along with the Challenger. It was founded by Reagan in 1984 to evoke interest in space exploration. More than 11,000 people from educational professions applied to join the adventure and the one chosen was teacher Sharon Christa McAuliffe. The main cause of the explosion was the failure of the back joint seal in the right Solid Rocket Boosters (SRB's) because of the cold weather. Solid rocket boosters are two very powerful rockets that are strapped to the side of the External Tank and help the shuttle speed up to get out from the earths atmosphere. Two minutes after a launch, the rockets are supposed to release from the shuttle and drop down into the ocean and later be collected for reuse. A year before the Challenger was launched there had been malfunctions with the shuttles SRB's. SRB's? A combustion gas leak through the right SRB at, or right after, ignition lead to weakening and/or penetration of the External Tank - which in turn lead to the vehicle structural break-up.
The shuttles reaction control system ruptured and the Orbiter broke into several large pieces. It took almost three minutes for the cabin to hit the Atlantic Ocean, where it smashed on impact and killed the entire crew. U.S. space policy adjusted Arianespace, a French areospace company, is established and takes over the commercial market for space transportation. determined the cause of the failure of the Shuttle and encouraged NASA to modify and fix the safety features on shuttles as well as the management of shuttle flight rate Rogers Commission Report August 1986: Reagan announces that shuttles will no longer carry commercial satellites Ride Report 1. Mission to Planet Earth
2. Exploration of the Solar System
3. Outpost on the Moon
4. Humans to Mars the next shuttle was not until Sept. 29, 1988 The Challenger Disaster was a reminder to the American public that Space travel is a risk. There was even more nationwide attention to the shuttle as this was the first time a civilian and teacher would be sent into space. President Reagan addressed the young children that had witnessed the accident and explained that "The future [...] belongs to the brave. The Challenger crew was pulling us into the future, and we'll continue to follow them..." This mentality shaped the way Americans would continue to regard space travel. A poll taken the October after the accident reported that 72% of Americans said that it was "at least somewhat important for the nation to have a human space program. " Issued in 1987 under the formal name Leadership and America's Future in Space, the Ride Report was created for NASA by Sally Ride to define potential space initiatives to be completed in the next 2 decades. study earth on a global scale from space retain the leadership that the U.S. demonstrated in space exploration return Americans to the moon send astronauts to land on the surface of Mars Before the "Disaster" (Precursors) Before 1986, The Challenger was originally viewed as one of NASA's "greatest triumphs," reportedly having completely nine successful missions.
However, it was only ever meant to be used as a test vehicle, and wasn't made with the purpose of human flight in mind. History of the Challenger Recycled Spaceship In the 1970's, NASA begun the Shuttle Program, where the objective was to create vehicles that would deliver cargo into space. The Shuttle Program The aircraft created, for the reason of testing, was intended to be reused. This would be the first time they would use a space craft more than once. By the time the Challenger had been ordered for liftoff on 1986, the aircraft had held the record for the most flown orbiter within NASA's fleet . First created and known as "STA-099" (Structural Test Article-099), construction for many of the components that would eventually become part of the Challenger began in 1972. It was the most advanced Shuttle created in the 1970's - 1990's by NASA, despite its unfortunate last liftoff in 1986. However, tests The Challenger undertook (static strength tests to observe effects of launch and entry stress, which included heating) increased its probability of operating under greater strain and deformations. Out of the six Shuttle orbiters created for the program (Enterprise, Columbia, Challenger, Discovery, Atlantis, and Endeavour), the Challenger was the most complex. It's early days earned it a legacy as the leader of "education, inspiration, and safety". The Track Record Ten satellites were deployed in The Challenger's 10 mission career. The total time it spent in space is 62 days 7 hours 56 minutes and 22 seconds, It has traveled 25,803,936 miles in 995 orbits of Earth. The goal was to create a lighter weight space craft, so the reduction would result in greater orbiting capabilities, Unfortunately, the 1970's did not yield enough advanced technology to realize the effects of submitting STA-099 to year of intense vibration and thermal testing. Under the Obama administration and his changes to the space policy, it is predicted to have a crewed orbital Mars mission by 2030. After transforming STA-099 into OV-099 (which converted the test article into an orbital vehicle), it took after the name of the HMS Challenger. A British corvette (an armed warship) the HMS Challenger served as the command ship in the Challenger Expedition, a pioneering global marine research expedition from 1872-1876. Francis R. (Dick) Scobee, Commander Michael John Smith, Pilot Ellison S. Onizuka, Mission Specialist One Judith Arlene Resnik, Mission Specialist Two Ronald Erwin McNair, Mission Specialist Three S.Christa McAuliffe, Payload Specialist One Gregory Bruce Jarvis, Payload Specialist Two
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Palca, Joe. "Lessons Linger 25 Years After Challenger Tragedy." NPR. NPR, 27 Jan. 2011. Web. 02 May 2013.
Reporting., Kenneth Chang; David E. Sanger Contributed. "In Call to Alter NASA, Obama Vows Renewed Space Program." The New York Times. The New York Times, 16 Apr. 2010. Web. 02 May 2013.
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"USA TODAY." USATODAY.COM. N.p., n.d. Web. 02 May 2013.
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