"#MarsExpress recording of @ESA_EDM descent is now processed and is being analysed by experts at #ESOC #ExoMars"

...then...

https://twitter.com/esaoperations/status/788780512089432064

"ACQUISITION OF ORBITER SIGNAL! #ESOC hears @ESA_TGO's signal loud & clear after it emerges from behind #Mars #ExoMars"

Also a photo of some very happy space people.

Edit: another tweet saying they'll need around 2 hours of data to confirm that they've reached orbit, confirmation at 20:30 CEST (https://twitter.com/esaoperations/status/788781863687036928). Space is somewhat of an emotional rollercoaster.