The Firefly Aerospace Alpha rocket and SpaceX Falcon 9 vehicle, two launches planned hours apart Sunday at Vandenberg Space Force Base, both will hang out at least a day longer. 

The Texas-based firm’s sixth Alpha still stands at Space Launch Complex-2, awaiting another departure opportunity Monday morning for the Message in a Booster mission.

“With a high chance for a weather violation today, we’re moving our launch attempt to tomorrow when conditions look much clearer,”Firefly representatives said early Sunday. 

The launch window will open at 6:37 a.m. and close at 7:29 a.m. Monday. 

The live webcast of the countdown will be available starting at 5:47 a.m. on YouTube by clicking here. 

Alpha will deliver Lockheed Martin’s LM 400 satellite to demonstrate the company’s new multi-mission satellite bus, or frame.

On Sunday afternoon, SpaceX delayed the launch of a Falcon 9 rocket with 27 Starlink satellites after targeting the end of the mission liftoff window.  SpaceX did not provide a reason for the delay.

Liftoff now is targeted for 1:39 p.m. Monday from Space Launch Complex-4, with other opportunities until 5:25 p.m.

The SpaceX team also has another chance for liftoff starting at 1:11 p.m. Tuesday.

The first-stage booster, making its 25th flight, is set to land on a droneship in the Pacific Ocean. 

A live webcast of the mission is scheduled to begin about five minutes before liftoff at spacex.com/launches and on X @SpaceX.