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.
NASA[2][3]: "targeted to launch no earlier than 11:10 a.m. EDT Thursday, Oct. 1" (15:10 UTC) after a Flight Readiness Review polled go and the rocket arrived at the pad on Sept. 28; earlier slipped from Sept. 12 for a Dragon propulsion leak.
NASA[3]: launch targeted no earlier than 11:10 a.m. EDT Oct. 1; Watkins first NASA astronaut to launch on Dragon twice.
Official statement of the slip from Sept. 12 over a Dragon propulsion oxidizer leak.[1]
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