We're currently L-1. Lots of things to come today, including RSS Retraction, scheduled for 8:30 PM EDT, although we know it tends to run late.
We are currently T-13 hours, 35 minutes, and counting.
Launch-1 Day (Friday, May 30)-
Resume countdown (3 a.m.)-Begin filling pad sound suppression system water tank (3 a.m.)
-Main engine avionics, pneumatics and controller checkout (3 a.m.)
-Close out the tail service masts on the mobile launcher platform
-Pad sound suppression system water tank filling complete (6 a.m.)
-Begin star tracker functional checks (10:50 a.m.)
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Enter planned hold at T-11 hours for 13 hours, 37 minutes (11:00 a.m.) -Activate the Shuttle's communications systems
-Move Rotating Service Structure to the park position (8:30 p.m.)
-Perform ascent switch list
-Fuel cell flow-through purge complete