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)
19970011 47
RedGreenBlue
z18.76
znorm14.58
sky 13.9 13.8 13.7
S/N 16.8 24.4 29.1
S/N(c) 0.2 27.2 19.0
SN(E/C) 0.35
19970012 47
RedGreenBlue
z18.66
znorm14.48
sky 14.1 14.1 14.0
S/N 15.5 23.0 27.3
S/N(c) 0.2 25.9 18.0
SN(E/C) 0.36
19970013 47
RedGreenBlue
z18.60
znorm14.42
sky 14.1 14.1 13.9
S/N 15.4 22.8 27.0
S/N(c) 0.2 25.7 17.7
SN(E/C) 0.39
19970014 47
RedGreenBlue
z18.65
znorm14.47
sky 14.3 14.3 14.2
S/N 15.8 23.4 27.6
S/N(c) 0.2 26.5 18.2
SN(E/C) 0.37
19970015 47
RedGreenBlue
z18.63
znorm14.45
sky 14.3 14.3 14.2
S/N 15.7 23.3 27.3
S/N(c) 0.2 26.8 18.4
SN(E/C) 0.34
19970016 47
RedGreenBlue
z18.51
znorm14.33
sky 14.5 14.4 14.3
S/N 14.7 21.9 25.7
S/N(c) 0.2 25.5 17.5
SN(E/C) 0.40
19970017 47
RedGreenBlue
z18.64
znorm14.46
sky 14.4 14.4 14.3
S/N 15.7 23.4 27.6
S/N(c) 0.2 27.3 18.7
SN(E/C) 0.39
19970018 47
RedGreenBlue
z18.76
znorm14.58
sky 14.6 14.5 14.3
S/N 17.0 24.9 29.4
S/N(c) 0.2 29.1 20.0
SN(E/C) 0.37