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)
18780075 47
RedGreenBlue
z18.74
znorm14.56
sky 15.0 14.6 15.0
S/N 15.9 23.7 28.6
S/N(c) 14.7 10.7 18.6
SN(E/C) 0.33
18780076 47
RedGreenBlue
z18.76
znorm14.58
sky 15.3 14.8 15.0
S/N 16.1 24.0 29.0
S/N(c) 14.9 10.8 18.8
SN(E/C) 0.37
18780077 47
RedGreenBlue
z18.79
znorm14.61
sky 15.2 15.0 15.0
S/N 16.3 24.6 29.5
S/N(c) 15.2 10.9 19.0
SN(E/C) 0.35
18780078 47
RedGreenBlue
z18.80
znorm14.62
sky 15.3 15.0 15.0
S/N 16.5 24.8 29.7
S/N(c) 15.3 11.0 19.2
SN(E/C) 0.36
18780079 47
RedGreenBlue
z18.87
znorm14.69
sky 15.1 15.0 15.1
S/N 16.8 25.2 30.4
S/N(c) 15.6 11.3 19.7
SN(E/C) 0.35
18780080 47
RedGreenBlue
z18.93
znorm14.75
sky 15.3 15.0 15.2
S/N 17.7 26.3 31.6
S/N(c) 16.2 11.7 20.4
SN(E/C) 0.34
18780081 47
RedGreenBlue
z18.86
znorm14.68
sky 15.4 15.2 15.2
S/N 16.9 25.4 30.3
S/N(c) 15.6 11.4 19.6
SN(E/C) 0.34
18780082 47
RedGreenBlue
z19.04
znorm14.86
sky 15.2 15.2 15.3
S/N 18.9 28.0 33.5
S/N(c) 17.0 12.4 21.4
SN(E/C) 0.33