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)
9730024 47
RedGreenBlue
z18.76
znorm14.58
sky 14.6 14.6 14.5
S/N 12.6 21.4 21.7
S/N(c) 11.6 19.6 20.7
SN(E/C) 0.84
9730025 47
RedGreenBlue
z18.87
znorm14.69
sky 14.9 14.8 15.1
S/N 13.8 22.4 23.5
S/N(c) 12.6 20.4 22.2
SN(E/C) 0.89