™SpaceX Booster Could Bring Sonic Booms to the Central Coast After Midnight
The launch advisory says Santa Barbara, San Luis Obispo and Ventura counties may hear booms as the Falcon 9 booster lands at Vandenberg.
If a boom rolls over Santa Barbara, San Luis Obispo or Ventura County after midnight tonight, it's likely a SpaceX booster landing, not an explosion.
SpaceX is aiming to launch a Falcon 9 from Vandenberg Space Force Base in a window that runs from 12:29 to 12:51 a.m. Saturday, KSBY reported. The first-stage booster is supposed to come back and land at the base's Landing Zone 4, and KSBY noted that this return is why people around Vandenberg may hear a sonic boom.
The touchdown is planned for roughly 8 to 10 minutes after liftoff, according to the mission advisory Edhat published. That advisory names three counties, Santa Barbara, San Luis Obispo and Ventura, where residents could hear a boom or several. It also says weather and other conditions will shape what people actually hear.
Plenty of people may have braced for this boom before. The mission was first set for 1:17 a.m. Monday, and that countdown stopped at the last second. SpaceX wrote on X that "Falcon 9 had an auto abort just prior to T-0," KSBY reported, adding that the rocket and its cargo were fine.
The new dates kept coming after that. KSBY's running updates show a Tuesday target, then 12:54 a.m. Thursday from base officials, then 12:36 a.m. Friday on SpaceX's website. Noozhawk reported that the Thursday delay was announced Wednesday afternoon. Saturday is the fifth date on the calendar since Monday.
The cargo is military. The Falcon 9 is carrying 21 data transport satellites for the Space Development Agency, and the advisory describes them as part of a network of optically linked satellites in low-Earth orbit, built for battlefield communications and missile warning. According to Edhat, it's the fourth of nine Tranche 1 missions SpaceX's rocket will fly for the agency.
SpaceX plans to start its webcast about 10 minutes before liftoff, on its website and its X account, according to Noozhawk. People near Lompoc have closer seats: Noozhawk listed the top of Harris Grade Road and the area around Moonglow and Stardust roads in Vandenberg Village as spots with a view of the pad.
That's also where the booster is headed. If the countdown holds this time, the boom is the sound of a rocket stage getting home.
Source: ktla.com.
Source: ksby.com, retrieved October 9, 2026. Other sources: edhat.com, noozhawk.com.
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