CPU load observations

A project log for ISS HDEV image availability

The "High Definition Earth Viewing" experiment onboard the ISS runs a few cameras, but not always. Let's find out when video is available!

ChristophChristoph 08/18/2018 at 19:020 Comments

My image analysis is running on the amazon cloud and uses roughly 3 - 4 % CPU. One thing that sticks out, though, is that CPU load periodically increases slightly. The period is roughly the same as that of the ISS' orbit (about 90 minutes, 16 per 24 hours):

I'll try to line this up with live image availability to see if it's actually related to the image analysis part.

edit: turns out that image analysis consumes less CPU while the ISS is in the night half of it orbit, so the cameras show a black image.