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)
15970017 42
RedGreenBlue
z18.50
znorm14.44
sky 14.6 14.6 14.8
S/N 13.3 22.5 23.6
S/N(c) 13.9 19.7 10.6
SN(E/C) 0.44
15970018 42
RedGreenBlue
z18.44
znorm14.38
sky 14.9 14.7 14.8
S/N 12.7 21.9 22.7
S/N(c) 13.5 19.3 10.3
SN(E/C) 0.45
15970019 42
RedGreenBlue
z18.56
znorm14.51
sky 15.2 14.8 15.0
S/N 12.0 20.4 22.1
S/N(c) 14.1 19.6 10.6
SN(E/C) 0.47
15970020 42
RedGreenBlue
z18.54
znorm14.49
sky 14.8 14.8 14.8
S/N 11.9 20.5 21.5
S/N(c) 14.0 19.9 10.6
SN(E/C) 0.51
15970021 42
RedGreenBlue
z17.97
znorm13.91
sky 14.9 15.1 14.9
S/N 8.0 15.0 16.3
S/N(c) 10.0 15.4 8.1
SN(E/C) 0.58
15970022 42
RedGreenBlue
z17.94
znorm13.88
sky 15.2 14.9 15.0
S/N 8.1 14.6 16.2
S/N(c) 9.5 15.0 7.9
SN(E/C) 0.57