Here is an incredible 360-degree view of the cables, and how the dollies holding them are lined up with their corresponding interfaces on the MLP π·
nasatech.net/ntSubPad39A/...#space
βΌοΈThis captures just how many cables needed to be connected from the 9099 Building to the Mobile Launch Platform / MLP.
(This is in addition to that of the quoted tweet, and elsewhere...)
Again, these umbilicals go from the pad --> platform. Forget everything going into Shuttle itself! π΅