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)
18910038 42
RedGreenBlue
z17.86
znorm13.80
sky 14.7 14.5 14.9
S/N 7.5 13.9 15.3
S/N(c) 11.0 15.3 14.2
SN(E/C) 0.62
18910039 42
RedGreenBlue
z17.83
znorm13.77
sky 15.0 14.9 14.9
S/N 7.3 13.4 15.4
S/N(c) 10.8 14.7 13.6
SN(E/C) 0.66
18910040 42
RedGreenBlue
z18.17
znorm14.11
sky 15.0 14.9 15.0
S/N 9.4 16.0 18.4
S/N(c) 14.5 18.6 17.5
SN(E/C) 0.54
18910041 42
RedGreenBlue
z18.14
znorm14.08
sky 14.7 15.0 14.8
S/N 9.0 15.6 17.6
S/N(c) 14.0 18.2 17.1
SN(E/C) 0.57
18910042 42
RedGreenBlue
z18.10
znorm14.04
sky 15.2 15.0 14.7
S/N 9.1 16.0 17.7
S/N(c) 12.7 16.9 15.9
SN(E/C) 0.58
18910043 42
RedGreenBlue
z16.42
znorm12.36
sky 14.7 14.9 15.4
S/N 2.4 5.6 5.9
S/N(c) 3.7 6.7 5.8
SN(E/C) 0.85
18910044 42
RedGreenBlue
z16.16
znorm12.10
sky 14.9 15.0 15.0
S/N 1.7 4.2 4.6
S/N(c) 3.1 5.2 4.6
SN(E/C) 0.92
18910045 42
RedGreenBlue
z16.18
znorm12.12
sky 15.0 15.1 15.0
S/N 1.8 4.4 4.6
S/N(c) 3.0 5.5 4.9
SN(E/C) 0.91