Ask HN: Awacs Unix Based UI?

https://gfx.nrk.no/kfqo0FzGFHQPJSWEzV8dAAK2l0LRX7UuAQFNqZGhMYZw

Saw this in an article about NATO planes with AWACS radar systems and I was wondering about the systems and UI used. Looks like an older Unix based system with MOTIF, perhaps CDE? Any ideas?