South Korea to launch first military communications satellite
Jul 22 2020
SpaceX will attempt to launch a South Korean communications satellite tonight from Cape Canaveral Air Force Station, with a launch window that is expected to be from 5 p.m.to 8:55 p.m.
DAPA earlier said the satellite was forecast to separate from the rocket 32 minutes after launch at an altitude of about 630 kilometers above the equator and will try to make contact with the Toulouse Space Operations Center in the French city of Toulouse 18 minutes later.
This Falcon 9 booster previously launched SpaceX's Demonstration Mission 2 which sent NASA astronauts Doug Hurley and Bob Behnken to the International Space Station.
The launch for this mission provided a re-entry attempt, which included a controlled burn off of the booster just after it returned into the atmosphere for a landing on SpaceX's drone ship.
SpaceX has flown a single rocket booster up to five times, and Musk has said the latest version of the Falcon 9 first-stage can fly up to 10 times with minimal repairs needed between launches. The new launch window opens at 2 p.m. PT/5 p.m. ET Monday and closes just below four hrs later on.
The South Korean satellite was initially scheduled to launch on July 14.
SpaceX has experienced an unlucky run of Falcon 9 postponements these days, with both of those a Starlink and Anasis-II mission start delayed in the previous two weeks.
The ANASIS-II spacecraft is a military communications satellite from and for South Korea, which marks an worldwide extension of SpaceX's service to global military forces. Since of its use in the military services, there is certainly not a lot of information about it, other than that it really is primarily based off the Eurostar E3000 satellite bus, according to the Day-to-day Astronaut.
The SpaceX rocket booster has successfully launched its ANASIS-II satellite into space, breaking a record in the process. Prior to today, NASA set that record in 1985 when it launched the same Space Shuttle orbiter (STS Atlantis) twice in 54 days - a truly incredible feat for such a complex vehicle. If launched on Monday, B1058 will hold the record for shortest turnaround of a rocket between two orbital launches, ever. The time between Demo-2 and ANASIS-II, if launched on Monday, will be just 51 days.
Today's launch - assuming it goes off without a hitch - is extremely special for SpaceX. One minute before liftoff, Falcon 9's onboard computers startup, taking control of the countdown and beginning to pressurize propellant tanks to flight pressures.