image K:
--------
zp: 24.375
gain=4.5e/ADU
nb_exposure=61
NDIT=10
DIT=6s
pix size=0.146'

imageJ:
-------
zp: 25.273
gain=4.5e/ADU
nb_exposure=43
DIT=2
NDIT=30s
pix size=0.146'

image R
--------
zp=27.326
gain=0.68e/ADU
nb_exposure=15
DIT=1
NDIT=240s
pix size=0.2'