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)
1740028 50
RedGreenBlue
z18.87
znorm14.62
sky 14.4 14.3 14.3
S/N 14.3 21.8 24.1
S/N(c) 12.7 20.5 23.1
SN(E/C) 0.92
1740029 50
RedGreenBlue
z18.89
znorm14.65
sky 14.6 14.3 14.5
S/N 13.9 21.8 24.1
S/N(c) 12.8 20.5 23.0
SN(E/C) 0.94