Super unexpected to see the stage separation nebula tonight. That was awesome! #spacex #falconheavy #STP2
Why the last-minute change from close to shore to so far downrange?
High payload/delta-V missions will always be far downrange. Value of boost stage is measured (essentially) by *horizontal* velocity imparted to upper stage. Altitude is almost unimportant.
COSMIC 2-3 deployment (centre view). In coast phase for 20 minutes.