SpaceX set for its first launch of 2019 on Friday

Fresh off a successful flight campaign in 2018, which included a record 21 missions, SpaceX returns to the launchpad Friday for its first mission of the new year. The instantaneous launch window opens at 10:31am ET (15:31 UTC).

This will be SpaceX’s eighth and final launch to build out a constellation of 75 modern communications satellites for Iridium.

For this mission, SpaceX will be launching 10 of the Iridium NEXT satellites to a low Earth polar orbit.

The first stage for this mission previously flew in September, launching the Telstar 18 Vantage mission into geostationary transfer orbit. It made an on-target ocean landing in relatively high seas during the midst of the Atlantic hurricane season. This time, the rocket will attempt to land on the droneship stationed in the Pacific Ocean.

All in all, this should be a fairly standard mission for SpaceX, with no crazy flight profiles or experimental tests. After all, a Falcon 9 rocket has flown this approximate mission seven times previously, and this first stage is “proven” in the sense that it has already flown once.

SpaceX is not expected to attempt a payload-fairing recovery, as the company is still perfecting its procedure for doing so. In addition to studying data obtained from earlier launches, SpaceX has been dropping a fairing half from a helicopter off the California coast and attempting to catch it with the vessel . Earlier this week, the company released some rather arresting footage of one of those tests.

After 18 missions in 2017 and 21 missions in 2018, it is not known how many rocket launches SpaceX will target in 2019. However, a reasonable guess is that the company will attempt 16 to 20 Falcon 9 launches and two to three Falcon Heavy flights.

A webcast for Friday morning’s launch attempt should begin about 15 minutes before the launch window opens. Should inclement weather (a 60 percent chance of favorable conditions) or a technical issue preclude a launch attempt, SpaceX has a back-up window available on Saturday morning at 15:25 UTC.

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