The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Spaceflight Now[3] (checked 2026-09-23): "Window opens at 4:56 a.m. PDT (7:56 a.m. EDT / 1156 UTC)" on 26 September from SLC-4E, Vandenberg; launches slip.
Local Santa Barbara press naming USSF-385 as the upcoming military mission from Vandenberg on 26 September.[1]
Mission page for this launch: classified Space Force payload from SLC-4E, booster B1096 on its 10th flight landing on OCISLY, window opening 1156 UTC 26 Sep.[1]
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