I really appreciate the engagement here, please don't apologise!
You are correct about the first graph, I wanted to understand the relationship between dark current and exposure time. It's common to cool sensors in astro to reduce dark current because of the high exposure times, so I wanted to see if this might be worthwhile for me but came across these strange phenomena.
Thanks for confirming I should be seeing a range of 0-4095 for the pixel values and for checking the project code to confirm it's just multiplying by 16 as expected. Maybe he ran out of GPT 4.0 by the time he asked about that!![:D]( "Very Happy")
Your hypothesis on AGC sounds plausible.
I will try to find the information you need. I need to go away take a look at the FITs image files generated to see if I can find info in the headers, and also see if I can repeat the experiment on the Pi directly.
Thanks again for the information so far!
You are correct about the first graph, I wanted to understand the relationship between dark current and exposure time. It's common to cool sensors in astro to reduce dark current because of the high exposure times, so I wanted to see if this might be worthwhile for me but came across these strange phenomena.
Thanks for confirming I should be seeing a range of 0-4095 for the pixel values and for checking the project code to confirm it's just multiplying by 16 as expected. Maybe he ran out of GPT 4.0 by the time he asked about that!
Your hypothesis on AGC sounds plausible.
I will try to find the information you need. I need to go away take a look at the FITs image files generated to see if I can find info in the headers, and also see if I can repeat the experiment on the Pi directly.
Thanks again for the information so far!
Statistics: Posted by DanielDC88 — Fri Dec 13, 2024 4:20 pm