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)
17980041 47
RedGreenBlue
z18.85
znorm14.67
sky 15.1 15.0 15.0
S/N 14.3 24.3 27.3
S/N(c) 30.7 27.6 50.0
SN(E/C) 0.45
17980042 47
RedGreenBlue
z18.89
znorm14.71
sky 15.2 15.1 15.0
S/N 14.5 23.8 26.9
S/N(c) 30.8 27.6 50.6
SN(E/C) 0.43
17980043 47
RedGreenBlue
z19.06
znorm14.88
sky 14.9 15.0 15.1
S/N 17.1 27.5 31.5
S/N(c) 35.0 30.6 56.6
SN(E/C) 0.41
17980044 47
RedGreenBlue
z19.05
znorm14.87
sky 15.3 15.3 15.0
S/N 16.9 27.7 31.4
S/N(c) 35.2 30.0 56.8
SN(E/C) 0.41
17980045 47
RedGreenBlue
z19.11
znorm14.93
sky 15.4 15.0 15.2
S/N 17.8 28.5 32.5
S/N(c) 35.2 30.4 57.0
SN(E/C) 0.39
17980046 47
RedGreenBlue
z19.04
znorm14.86
sky 15.8 15.1 15.1
S/N 16.6 27.0 30.8
S/N(c) 31.6 28.7 53.3
SN(E/C) 0.42