Closed esheldon closed 4 years ago
Wait what? How are the zero points different?
What's the mag zero point?
The issues title says the images are on different zero points. They should not be. I use whatever flux comes out of wldeblend so the zero point should always be the same, right?
Here is the formula used:
self.exposure_time*self.zero_point*10**(-0.4*(ab_magnitude-24))
The leading terms are explicitly taking the image off of the zero point of 24 and putting it onto some kind of instrumental zero point
Yes but it is the same for all images, right?
Do you mean across different bands?
Yes, different bands are gettinga different zero point and these are not close to 24, they range widely
I plan to rescale them in the sim to zero point 30
We need to pass this information to the coadding some how, or put them onto the same system
I expect that the real DM processing forces all images to have the same zero point