At around 41:00, Thunderbird 2 is shown hovering with her cargo pod still aboard. At that point, the pod had been dropped into the ocean to launch Thunderbird 4.
In the scene preceding the first major explosion near the oil rig, it's nighttime on Tracy Island, allegedly in the South Pacific and on the Seascape oil rig in the North Atlantic.
Lady Penelope's sheep-counting meter is useless to her as it counts to only five digits. She would need six for her 200,007 sheep.