We now know why the fourth-ever launch of Firefly Aerospace’s Alpha rocket did not go totally to plan.
That mission, known as Fly the Lightning, lifted off on Dec. 22 of final yr, carrying an electronically steerable antenna payload developed by aerospace big Lockheed Martin to low Earth orbit (LEO).
The 95-foot-tall (29 meters) Alpha delivered the payload to LEO however failed to attain the goal orbit. Firefly quickly started a mishap investigation, which has now wrapped up, the corporate introduced on Tuesday (Feb. 20).
“The investigation decided the mishap was because of an error within the Steerage, Navigation, and Management (GNC) software program algorithm that prevented the system from sending the required pulse instructions to the Response Management System (RCS) thrusters forward of the stage two engine relight,” Firefly wrote in an update on Tuesday.
“Firefly is now implementing corrections actions to make sure the GNC software program challenge is resolved, together with course of adjustments to detect and stop related points sooner or later,” the corporate added. “Alpha will likely be able to fly once more within the coming months.”
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The software program challenge hindered Fly the Lightning however did not scuttle the mission, Firefly careworn.
“Regardless of these challenges, Alpha deployed the payload in an orbit that allowed our mission companion to efficiently full their main mission goals, together with fast commissioning of the satellite tv for pc following insertion,” the corporate wrote in Tuesday’s replace.
That payload was designed to “show quicker on-orbit sensor calibration to ship fast capabilities to U.S. warfighters,” Firefly representatives wrote in a mission description earlier than launch.
Fly the Lightning was the fourth orbital mission for Firefly and Alpha.
The primary flight, in September 2021, was a take a look at mission that failed shortly after launch. Alpha bounced again with a partial success in October 2022, delivering seven satellites to orbit however apparently deploying them too low.
The 2-stage rocket launched for the third time in September 2023, on a mission for the U.S. Area Drive known as Victus Nox. That flight was an unalloyed success. Alpha launched simply 27 hours after the Area Drive gave the order — a brand new file for a nationwide safety mission — and deployed its main satellite tv for pc into the goal orbit.
