Automating download of only daytime Sentinel 3 Land Surface Temperature datasets?

Hello, I was wondering if there is an easy way to determine if a dataset is from the daytime or nighttime version of the land surface temperature?

I saw the thread here - Night/Day discrimination for SLSTR products

but since it is a few years old, I was curious if there was newer information, or if someone can confirm that ascending and descending are trustworthy. Thank you very much.