USA TODAY NETWORK Any Arizona mountain park is a good spot to see a rocket launch from Vandenberg Space Force Base in Southern California. Because of the launch site's proximity, Arizona residents across a large swath of the state may be able to witness a Falcon 9 rocket soaring overhead. Update: The launch is now scheduled for 1:36 p.m. PT (4:36 p.m. ET) Friday, May 23, the Vandenberg Space Force Base said in an updated launch alert. If needed, additional launch opportunities are also available on Saturday, May 24 starting at 1:14 p.m. PT. People in Arizona may have an opportunity to witness a SpaceX rocket soaring overheard after launching from neighboring California. For the fourth time in May, Elon Musk's commercial spaceflight company is preparing to send a Falcon 9 to deploy a batch of Starlink satellites into orbit following liftoff from Vandenberg Space Force Base in Southern California. SpaceX's famous two-stage rocket will likely get off the ground Thursday, May 22, to deliver more of the internet-beaming satellites into what's called low-Earth orbit – an altitude that allows for things like satellites to circle Earth fairly quickly. Because of the launch site's proximity, Arizona residents across a large swath of the state may be able to witness the rocket soaring overhead. A photo gallery with this story Here's what to know about the launch, as well as when and where to watch it: What time is the SpaceX rocket launch from California? The SpaceX Falcon 9 rocket is slated to get off the ground as early as 3:03 p.m. PT (6:03 p.m. ET ) Thursday, with backup opportunities available until 5:51 p.m. PT, according to a launch alert from the Vandenberg Space Force Base. If SpaceX opts to scrub the launch, additional liftoff opportunities are available beginning at 1:36 p.m. PT Friday, May 23. The launch, using a SpaceX Falcon 9 rocket to deliver the Starlink satellites, will take place from Launch Complex 4E from Vandenberg Space Force Base in Santa Barbara County, California. Following the delivery and deployment of the satellites, the Falcon 9 rocket's booster will aim to land on a SpaceX drone ship, nicknamed "Of Course I Still Love You," in the Pacific Ocean. This allows for SpaceX personnel to recover the booster so it can be reused in future spaceflights. How to watch SpaceX Starlink launch livestream