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)
21720088 47
RedGreenBlue
z18.92
znorm14.74
sky 14.1 14.5 14.5
S/N 18.0 25.9 31.0
S/N(c) 16.3 12.8 24.6
SN(E/C) 0.28
21720089 47
RedGreenBlue
z18.89
znorm14.71
sky 14.1 14.4 14.4
S/N 17.6 25.3 30.4
S/N(c) 16.2 12.7 24.5
SN(E/C) 0.27
21720090 47
RedGreenBlue
z19.01
znorm14.83
sky 14.2 14.5 14.5
S/N 18.6 26.7 31.9
S/N(c) 17.5 13.7 26.4
SN(E/C) 0.27
21720091 47
RedGreenBlue
z19.05
znorm14.87
sky 14.0 14.5 14.5
S/N 18.8 27.1 32.3
S/N(c) 17.7 13.8 26.5
SN(E/C) 0.26
21720092 47
RedGreenBlue
z18.93
znorm14.75
sky 14.1 14.5 14.3
S/N 18.3 26.2 31.2
S/N(c) 16.5 12.9 25.1
SN(E/C) 0.27
21720093 47
RedGreenBlue
z18.90
znorm14.72
sky 14.0 14.6 14.4
S/N 17.8 25.7 30.8
S/N(c) 16.1 12.6 24.6
SN(E/C) 0.28
21720094 47
RedGreenBlue
z18.80
znorm14.62
sky 14.1 14.4 14.4
S/N 16.9 24.5 29.3
S/N(c) 15.2 12.0 23.4
SN(E/C) 0.29
21720095 47
RedGreenBlue
z18.95
znorm14.77
sky 14.1 14.6 14.6
S/N 18.4 26.6 31.7
S/N(c) 16.4 12.9 25.3
SN(E/C) 0.28