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 19.3 35.0 37.3
S/N(c) 0.0 0.0 0.0
SN(E/C) 0.67

IPAIRNAMESHIFTNEWSHIFTS/N NAMESHIFTNEWSHIFTS/N
0 19990023 0.00000 0.00000 19.0015 19990025 -0.503024 0.503024 19.0439
1 19990027 -0.00116995 0.00116995 19.1146 19990028 -0.505466 0.505466 19.0823
2 19990026 -0.000425122 0.000425122 19.0944 19990024 -0.503489 0.503489 19.0487