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)
1750028 50
RedGreenBlue
z18.91
znorm14.66
sky 14.0 13.7 13.7
S/N 17.1 24.2 26.7
S/N(c) 17.0 11.6 19.5
SN(E/C) 0.89
1750029 50
RedGreenBlue
z19.03
znorm14.78
sky 14.1 13.8 13.8
S/N 18.2 25.6 28.4
S/N(c) 18.0 12.2 20.8
SN(E/C) 0.92
1750030 50
RedGreenBlue
z19.08
znorm14.83
sky 13.9 13.8 13.9
S/N 18.6 26.4 29.2
S/N(c) 18.4 12.5 21.1
SN(E/C) 0.90
1750031 50
RedGreenBlue
z18.89
znorm14.64
sky 14.1 13.9 14.0
S/N 16.7 23.7 26.1
S/N(c) 16.4 11.5 19.3
SN(E/C) 0.97
1750032 50
RedGreenBlue
z18.86
znorm14.61
sky 13.5 13.2 13.2
S/N 15.6 22.6 24.5
S/N(c) 15.9 11.0 18.6
SN(E/C) 0.92