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
z17.65
znorm Inf
sky -Inf -Inf -NaN
S/N 23.4 31.8 43.2
S/N(c) 33.0 14.8 25.3
SN(E/C) 0.27

IPAIRNAMESHIFTNEWSHIFTS/N NAMESHIFTNEWSHIFTS/N
0 19000021 0.503350 0.00000 19.2326 19000020 0.00000 0.503350 19.2605
1 19000022 0.502892 0.000458002 19.3438 19000023 0.000431131 0.502919 19.4610