SpaceX Falcon 9 : BulgariaSat-1 : June 23, 2017 : DISCUSSION

[shooter6947]

The atmosphere doubles in density roughly every 20 km

Actually the pressure increases by a factor of e=2.81828 every 10 km or so -- Earths' scale height.  Density increases commensurately for same temperature, but varies as PV=nRT otherwise.  So much steeper than you suggest -- density goes up more like a factor of 8 for every 20 km.

[FutureSpaceTourist]

Falcon 9 stage 2 from the Bulgariasat-1 launch reentered at 1813 UTC Oct 31 over Parana, Brazil. Earlier estimate of Oct 27 decay was wrong

https://twitter.com/planet4589/status/926314875227385856

[gongora]

https://twitter.com/pbdes/status/1348584950518439937

.@EximBankUS prepares possible seizure of Bulgaria Sat 1 satellite in wake of non-payment of $150.5M loan.
@MaxZayakov @BulsatcomTV. http://bit.ly/2Lkya3f

[Robotbeat]

https://twitter.com/pbdes/status/1348584950518439937

.@EximBankUS prepares possible seizure of Bulgaria Sat 1 satellite in wake of non-payment of $150.5M loan.
@MaxZayakov @BulsatcomTV. http://bit.ly/2Lkya3f

That's sad to see.