Rule #1: Everything Slips.
UPDATE: #SpaceX Merah Putih (Telkom-4) launch from CCAFS rescheduled to Tuesday, 8/7. Similar window, so launch hazard area in effect from 2315 ET 8/6 to 0345 ET 8/7 (0315 to 0745 UTC). #Falcon9 will attempt ASDS landing. pic.twitter.com/pZqiofspiG
— Emre Kelly (@EmreKelly) July 31, 2018