At various moments in the NASA video NASA’s SpaceX Crew-3 Astronauts Launch to the Space Station astronauts are shown standing or walking or otherwise posing for the camera in their Dragon capsule suits without any connection to a water cooler/recirculator that would normally pump coolant through a system of tubes in thermal contact with the astronauts body to remove the one to several hundred watts of heat the human body produces under various levels of exercise.
Even in the early days of spaceflight astronauts carried portable cooler/recirculator units. Here are some more recent examples:
- What is the blue box that the Exp. 53 Astronuats/Cosmonauts carried with them?
- What are these Soyuz Astronauts/Cosmonauts holding in their hands before launch?
So I assume that in the screenshots below the astronauts were only momentarily disconnected from their units, which they probably anxiously eyed the whole time as they would have started getting toasty almost immediately.
Question: How long can astronauts wearing Dragon capsule suits walk around unconnected to water coolers?
I'm not asking for an LD50 answer (i.e. how long before half of them would die) but more of a rules and/or comfort answer. Like everything else there are likely stated limits on how long they are allowed remain disconnected, and limits on the amount of physical exercise they can do while being disconnected.
There may also be at least a lower limit that can be gleaned from video; if they're shown disconnected continuously for 90 seconds for example then an acceptable answer might be "apparently at least 90 seconds."
These "hotshots" must have been getting pretty hot, literally!