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I recently saw in person a non-flight part of a Vega satellite dispenser - rather solid looking 80+ kg aluminum ring like shape, that during a normal flight profile burns up about 100 minutes after lunch via controlled re-entry of the upper stage.

Apparently, very little of that is expected to come down, courtesy of the 8 km/s of kinetic energy it has turning into heat in a very short amount of time.

I image it will be the same for the battery pallet, aided with parts being thin skinned & pressurized.




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