Left plots: red are targets, blue are telluric. Observed mags are calculated from median value of green chip. Zeropoint gives overall throughput: bigger number is more throughput.
First spatial plots: circles are objects, squares are tellurics, crosses are sky fibers. Colors give deviation of observed mag from expected 2MASS mag using the median zeropoint; red is brighter
Second spatial plots: circles are sky fibers. Colors give sky line brightness relative to plate median sky line brightness
FrameNreadsZeropointsMag plots Spatial mag deviation Spatial sky 16325A emission deviations (filled: sky, open: star) Spatial sky continuum emission Spatial sky telluric CO2 absorption deviations (filled: H < 10)
18680043 42
RedGreenBlue
z18.59
znorm14.53
sky 14.7 14.5 14.9
S/N 1.3 3.2 2.9
S/N(c) 19.5 24.8 7.1
SN(E/C) 0.70
18680044 42
RedGreenBlue
z18.59
znorm14.54
sky 15.1 14.8 15.0
S/N 1.4 2.2 3.1
S/N(c) 19.6 24.9 7.1
SN(E/C) 0.68
18680045 42
RedGreenBlue
z18.49
znorm14.43
sky 15.2 14.9 14.9
S/N 15.1 24.5 25.9
S/N(c) 17.9 23.2 6.6
SN(E/C) 0.67
18680046 42
RedGreenBlue
z18.58
znorm14.52
sky 15.3 15.1 15.1
S/N 15.4 25.3 26.6
S/N(c) 18.7 23.5 6.8
SN(E/C) 0.72
18680047 42
RedGreenBlue
z18.28
znorm14.22
sky 15.4 15.3 15.2
S/N 2.9 6.8 6.8
S/N(c) 16.2 21.5 6.0
SN(E/C) 0.73
18680048 42
RedGreenBlue
z18.26
znorm14.20
sky 15.4 15.4 15.0
S/N 3.0 6.6 6.8
S/N(c) 15.9 21.2 5.9
SN(E/C) 0.79