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 26.6 39.8 48.9
S/N(c) 21.9 25.5 68.4
SN(E/C) 0.35

IPAIRNAMESHIFTNEWSHIFTS/N NAMESHIFTNEWSHIFTS/N
0 18520054 0.496679 0.00000 18.8353 18520053 0.00215030 0.494529 18.8680
1 18520051 0.496571 0.000108004 18.9034 18520052 0.00267099 0.494008 18.9477
2 18520050 0.494883 0.00179601 18.8837 18520049 0.00000 0.496679 18.8806