ULA pushes communications satellite launch to Thursday

ULA Postpones ViaSat-3 Flight 2 Satellite Launch

The ViaSat-3 Flight 2 mission, set to launch aboard the Atlas V 551 rocket, was delayed. The launch was scheduled from Space Launch Complex-41 at Cape Canaveral Space Force Station.

United Launch Alliance (ULA) paused the launch attempt on Wednesday after an issue arose during final system checks. The problem occurred while cycling the booster liquid oxygen tank vent valve about 10 minutes before the planned liftoff at 10:24 p.m. ET.

The launch of a United Launch Alliance Atlas V carrying the ViaSat-3 F2 mission for @viasat is scrubbed for tonight's launch attempt due to an issue encountered while cycling the booster liquid oxygen tank vent valve during final checkouts. The team will require additional time…

The launch window for Wednesday opened at 10:24 p.m. ET and was scheduled to close at 11:08 p.m. ET. Following the issue, the launch entered an unplanned hold before being officially scrubbed at approximately 10:50 p.m.

ULA announced plans to try again on Thursday, with a 44-minute launch window starting at 10:16 p.m. ET.

Mission and Vehicle Details

This postponement highlights the critical checks necessary to ensure successful satellite deployment and mission safety.

Summary: United Launch Alliance delayed the ViaSat-3 Flight 2 launch due to a liquid oxygen vent valve issue, rescheduling the attempt for Thursday evening.

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Spectrum News 13 Spectrum News 13 — 2025-11-05

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