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)
4820010 47
RedGreenBlue
z19.00
znorm14.82
sky 14.6 14.5 14.3
S/N 19.1 26.3 27.4
S/N(c) 17.8 25.3 26.5
SN(E/C) 0.94
4820011 47
RedGreenBlue
z18.95
znorm14.77
sky 14.6 14.6 14.5
S/N 18.3 25.7 26.8
S/N(c) 17.1 24.6 26.0
SN(E/C) 0.91