Instantaneous launch window.
June 28, 2015, 2:21 p.m. - June 28, 2015, 2:21 p.m.
A SpaceX Falcon 9 rocket launched the ninth Dragon spacecraft on the seventh operational cargo delivery mission to the International Space Station as part of the NASA cargo resupply contract. It was meant to deliver the IDA-1 segment of the new ISS International Docking System. The second stage ruptured due to an overpressurization event and the launch vehicle disintegrated at T+139 seconds. According to SpaceX investigation, "Preliminary analysis suggests the overpressure event in the upper stage liquid oxygen tank was initiated by a flawed piece of support hardware (a “strutâ€) inside the second stage."
Falcon 9 v1.1 is a significantly redesigned version of the its predecessor, including a higher payload capacity. This version arranges the engines in a structural form SpaceX calls an Octaweb.
See Falcon Details
This vehicle was intended to deliver the first of two International Docking Adapters to modify the ISS adapters so that they could be used for future commercial crew missions. However the capsule was destroyed when the Falcon 9 launch vehicle failed in flight.
Dragon 1 Details
Space Exploration Technologies Corp., known as SpaceX, is an American aerospace manufacturer and space transport services company headquartered in Hawthorne, California. It was founded in 2002 by entrepreneur Elon Musk with the goal of reducing space transportation costs and enabling the colonization of Mars. SpaceX operates from many pads, on the East Coast of the US they operate from SLC-40 at Cape Canaveral Space Force Station and historic LC-39A at Kennedy Space Center. They also operate from SLC-4E at Vandenberg Space Force Base, California, usually for polar launches. Another launch site is being developed at Boca Chica, Texas.
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