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)
19980058 47
RedGreenBlue
z18.66
znorm14.48
sky 14.9 14.5 14.8
S/N 11.8 21.0 22.8
S/N(c) 13.0 27.9 24.3
SN(E/C) 0.73
19980059 47
RedGreenBlue
z18.75
znorm14.57
sky 15.0 15.0 15.0
S/N 12.5 22.4 24.2
S/N(c) 13.6 29.0 25.1
SN(E/C) 0.73
19980060 47
RedGreenBlue
z18.85
znorm14.67
sky 14.9 14.7 15.2
S/N 13.5 23.8 26.0
S/N(c) 14.1 30.1 26.3
SN(E/C) 0.68
19980061 47
RedGreenBlue
z18.92
znorm14.73
sky 15.1 14.8 15.0
S/N 14.1 24.0 26.5
S/N(c) 14.9 31.3 27.5
SN(E/C) 0.67
19980062 47
RedGreenBlue
z18.99
znorm14.81
sky 14.7 14.9 15.1
S/N 14.7 25.7 27.8
S/N(c) 15.5 32.7 28.2
SN(E/C) 0.64
19980063 47
RedGreenBlue
z18.95
znorm14.77
sky 14.8 14.8 15.1
S/N 14.5 25.1 27.1
S/N(c) 15.0 31.8 27.9
SN(E/C) 0.64
19980064 47
RedGreenBlue
z18.85
znorm14.67
sky 14.9 15.0 14.9
S/N 13.3 23.4 25.3
S/N(c) 14.1 30.5 26.5
SN(E/C) 0.71
19980065 47
RedGreenBlue
z18.95
znorm14.77
sky 14.6 14.9 14.8
S/N 14.5 25.2 27.2
S/N(c) 14.9 31.7 27.7
SN(E/C) 0.68