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 -Inf
S/N 10.6 17.2 21.2
S/N(c) 12.9 11.5 19.2
SN(E/C) 0.54

IPAIRNAMESHIFTNEWSHIFTS/N NAMESHIFTNEWSHIFTS/N
0 19690028 0.494610 0.00000 17.3411 19690029 -0.000898294 0.495508 16.4788
1 19690027 0.494108 0.000502020 18.3266 19690026 0.00000 0.494610 18.1577