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)
18060025 42
RedGreenBlue
z18.53
znorm14.47
sky 14.8 14.5 14.7
S/N 13.3 22.4 24.4
S/N(c) 11.0 17.2 7.8
SN(E/C) 0.51
18060026 42
RedGreenBlue
z18.48
znorm14.43
sky 15.2 15.0 14.6
S/N 13.1 22.4 24.1
S/N(c) 10.6 16.9 7.5
SN(E/C) 0.54
18060028 42
RedGreenBlue
z17.84
znorm13.78
sky 15.2 15.0 14.7
S/N 6.2 12.2 12.5
S/N(c) 7.1 12.3 5.4
SN(E/C) 0.59