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
z17.63
znorm Inf
sky -Inf -NaN -NaN
S/N 26.4 36.6 48.8
S/N(c) 29.4 0.7 16.6
SN(E/C) 0.23

IPAIRNAMESHIFTNEWSHIFTS/N NAMESHIFTNEWSHIFTS/N
0 18530042 0.00000 0.00000 19.6801 18530043 -0.491858 0.491858 19.6549
1 18530045 -0.000179388 0.000179388 18.8577 18530044 -0.491936 0.491936 18.7890