In order to access and close off Orbit, you need to have access to the Orbit key.
The key can be picked up in the key locker in Luna, and you need a personal keycode for this.
If you want to make use of Orbit more regularly, and want to book it for your own practice, you need this keycode. You can request it by sending an e-mail to secretaris@esdvfootloose.nl. Any other questions about bookings can go to that e-mail as well.