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 -NaN
S/N 21.8 37.3 43.3
S/N(c) 25.7 20.1 0.8
SN(E/C) 0.23

IPAIRNAMESHIFTNEWSHIFTS/N NAMESHIFTNEWSHIFTS/N
0 18510059 0.495096 0.00000 18.4512 18510060 0.000543953 0.494552 18.4255
1 18510063 0.494019 0.00107700 18.5152 18510064 0.000318814 0.494777 18.5783
2 18510062 0.493087 0.00200900 18.4839 18510061 0.000329421 0.494767 18.4905
3 18510058 0.495018 7.79927e-05 18.4365 18510057 0.00000 0.495096 18.3692