Thunderbirds are go

Thunderbird 5

The largest rescue vehicle of the Thunderbirds inventory, Thunderbird 5 is an Earth-orbiting space station which monitors all broadcasts around the globe for calls for help and also manages communications within International Rescue. Measuring 122 m long, 90 m wide, and 83 m tall, Thunderbird 5 was equipped with almost completely automated onboard systems, allowing the entire station to be run by a single crew member. Thunderbird 5 is primarily commanded by John Tracy, although he is periodically relieved by Alan (according to the storyline, John and Alan swap roles once a month, one piloting Thunderbird 3 and the other monitoring Thunderbird 5, but such was writer Gerry Anderson's dislike for the character of John, that he was usually exiled to the space station). Derek Meddings designed Thunderbird 5 after the other machines and apparently based the design on the Tracy Island Roundhouse model (through which Thunderbird 3 launches).[7] Thunderbird 5 is in a geo-stationary orbit, 22,400 miles above the Pacific Ocean, and believed to be above Tracy Island. Thunderbird 5 has never been detected or found by anyone in the series.