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)
0 0
RedGreenBlue
z17.64
znorm Inf
sky -Inf -NaN -Inf
S/N 27.2 43.6 52.3
S/N(c) 35.9 0.7 36.6
SN(E/C) 0.21

IPAIRNAMESHIFTNEWSHIFTS/N NAMESHIFTNEWSHIFTS/N
0 19680024 0.490493 0.00000 17.1881 19680029 0.00127896 0.489214 18.4026
1 19680023 0.488830 0.00166300 18.8974 19680022 0.00000 0.490493 18.7794
2 19680027 0.488603 0.00189000 18.7916 19680026 -0.000984064 0.491477 18.6352
3 19680028 0.489175 0.00131801 18.6725 19680025 -0.000369984 0.490863 18.6126