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 21.7 39.0 44.2
S/N(c) 0.0 0.0 0.0
SN(E/C) 0.90

IPAIRNAMESHIFTNEWSHIFTS/N NAMESHIFTNEWSHIFTS/N
0 18500024 0.000755251 0.00000 18.7808 18500026 -0.499533 0.500288 18.6930
1 18500027 0.000163261 0.000591990 18.7551 18500025 -0.498682 0.499437 18.6844
2 18500023 0.000510580 0.000244671 18.7034 18500022 -0.499505 0.500260 18.6669
3 18500020 0.00000 0.000755251 18.6729 18500021 -0.499838 0.500593 18.5703