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)
19940027 47
RedGreenBlue
z18.86
znorm14.68
sky 14.2 13.9 13.9
S/N 14.0 22.0 24.8
S/N(c) 19.3 23.7 5.3
SN(E/C) 0.59
19940028 47
RedGreenBlue
z18.89
znorm14.71
sky 14.2 13.9 13.9
S/N 13.9 22.2 24.5
S/N(c) 19.6 24.2 5.3
SN(E/C) 0.62
19940029 47
RedGreenBlue
z18.77
znorm14.59
sky 14.0 13.9 14.0
S/N 12.5 20.3 23.2
S/N(c) 17.7 22.5 4.9
SN(E/C) 0.61
19940030 47
RedGreenBlue
z18.66
znorm14.48
sky 14.1 14.0 14.0
S/N 11.6 19.4 21.3
S/N(c) 16.4 21.3 4.6
SN(E/C) 0.66
19940031 47
RedGreenBlue
z18.56
znorm14.38
sky 14.2 14.0 13.9
S/N 10.6 17.7 19.5
S/N(c) 15.7 20.1 4.4
SN(E/C) 0.65
19940032 47
RedGreenBlue
z18.50
znorm14.32
sky 14.3 14.0 13.9
S/N 10.3 17.4 18.9
S/N(c) 14.4 18.9 4.1
SN(E/C) 0.67