Blinking satellite through Orion

[Ludd]

Last night I took my newly acquired Canon 7d2 out for its first few Astro shots. While looking at Orion I saw a satellite passing very slowly from NW to SE across Orion, flashing brightly every few seconds.  I managed to capture it in this 30s shot.  Presumably this is something in very high orbit with a very shiny surface catching the sunlight.  

[theropod]

Could be a spent booster stage tumbling. I get these occasionally in my wide field meteor fall hunting.