Mixed dark frames provided in mObs checkout system

[ivenzor]

Dark frames provided in datasets sometimes do not match the telescope used for the observations. Based on the latest 10 datasets I have received, only in 4 cases did both dark frames correspond to the telescope used to capture the light frames.

Most mObs exoplanet observations are conducted using the Cecilia telescope. Therefore, the dark FITS files included in the zip packages would consist of two files named Dark-C...FIT. However, it is relatively common for the provided dark files to originate from a different telescope. For example, they may be named Dark-A...FIT or Dark-B...FIT, indicating they belong to other telescopes such as Annie or Ben (this can be confirmed by opening the files and checking the headers).

Using the last dataset I received, I tested the impact of using dark frames from a different telescopes. The JSON file and data remained the same for both tests; the only variable was whether or not the provided dark frames were used:

1. When I used the provided dark files, which originated from different telescopes, the sigma significance was 5.9σ, and in the FOV plot, the green circles for both the target and comparison stars appeared slightly misaligned.

2. When I excluded the provided dark files, since they were from different telescopes, the sigma significance increased to 10.1σ, and the green circles in the FOV plot appeared correctly aligned.

In this test we "lost" 4.2 sigmas due to using incorrect dark frames.