"SpaceX is targeting Monday, July 20 for Falcon 9's launch of the ANASIS-II mission, which will lift off from Space Launch Complex 40 (SLC-40) at Cape Canaveral Air Force Station in Florida", the company said in a statement.
The launch window runs almost four hours, approximately till 8.55 p.m (0055 GMT).
Today's mission will also include an attempt to recover the fairing halves used to protect the satellite during launch, which are jettisoned once the payload reaches space.
The Korean flag graces the Falcon 9 payload fairing, made up of a South Korean armed service comms satellite.
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Johnson said the satellite most likely will be positioned directly over the Korean Peninsula, providing secure communications for troops. The booster was initially flown in May to supply NASA astronauts Doug Hurley and Bob Behnken to the Intercontinental Area Station - the very first time a professional corporation has carried out so. Anasis-II is a geosynchronous communications satellite that will be deployed in an orbit covering the Korean peninsula.
All testing now seemed to be complete, and SpaceX confirmed it would be aiming to make the launch today.
This booster 1058.2 is the Falcon 9, supposedly with the NASA worm emblem on the other facet, but that side of the rocket was going through away from in which the media set up cameras. The launch had originally been planned for last week, but had to be delayed so the company could "take a closer look at the second stage" and "swap hardware if needed". This is a record in terms of the time required to recover a booster and turn it around for re-use - breaking the 63-day time of the booster used for Starlink's fourth production launch in February.
The forecast suggests afternoon thunderstorms will be inland by the time the launch window opens, but the Cape could still see showers close to the launch site that could bring either thick clouds or lightning. Now, less than two months later, the booster has broken what is arguably the most significant record in the history of reusable rockets. If all conditions are clear to proceed, fueling begins three minutes later and 35 minutes before launch, when RP-1 fuel begins flowing into Falcon 9's first and second stages, and liquid oxygen begins loading into the first stage. "Falcon 9, seize the long run".