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 -Inf -Inf
S/N 27.8 43.8 51.7
S/N(c) 39.6 41.2 29.6
SN(E/C) 0.74

IPAIRNAMESHIFTNEWSHIFTS/N NAMESHIFTNEWSHIFTS/N
0 19930037 0.499344 0.00000 19.1471 19930036 0.00403496 0.495309 19.1486
1 19930033 0.494803 0.00454098 19.0734 19930035 0.00370038 0.495644 19.0686
2 19930034 0.494710 0.00463399 19.0520 19930032 0.00000 0.499344 19.0658