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 15.1 14.8 14.7
S/N 12.6 21.4 21.8
S/N(c) 11.5 19.8 20.8
SN(E/C) 0.88
9730025 47
RedGreenBlue
z18.89
znorm14.71
sky 14.8 14.9 15.3
S/N 13.5 22.8 23.8
S/N(c) 12.2 21.1 22.5
SN(E/C) 0.91