I would like to know which Sentinel-2 product is better T30TTK and T29TQE.
On Copernicus I can find two images with the same sensing date that differ only in the “Tile Number” field. They are projected differently onto the map and the values in bands are slightly different. In my image B1 reflectance is 0.1419 for TTK and 0.1464 for TQE.
Which one is closer to reality?
The question is off-topic for SNAP development and usage, but I will appreciate if you answer, as I didn’t find a specification of this.
Thank you
EDIT:
I have loaded the KML file with Sentinel-2 tiles and seen that, indeed, over my region in Spain they overlap.
If you talk about Level2 then it can be because the AC is done per tile. It depends on the actual values in the scene (min, max, mean, or something like this). But they are equally good. For details, you should ask sen2cor.
If you talk about Level1 then I don’t know. Could be that the differences are caused by different processing versions even if the scene is taken from the same date?
Maybe @Jan has an answer?
It’s not clear to me what the “typical” reflectance under this level of illumination should be - being as both are within the specification of radiometry for the the instrument, and that the value will be a within a range that will undoubtedly vary depending on viewing conditions.