Inspecting Gateway Status Packet

Is there a way to inspect the contents of a Gateway Status Packet?

My gateway configuration and forwarder log file tell me the GPS is working fine but the only way to display the gateway on ttnmapper is to enable gps_fake. I’d like to find out the difference between the status packet in the gps modes.

Any comments and hints most welcome and appreciated.

Whilst I haven’t found a way to inspect the actual data packet, the next best option appears to be the NOC.
http://noc.thethingsnetwork.org:8085/api/v2/gateways
This page provides status information from all gateways.