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)
1670024 50
RedGreenBlue
z18.88
znorm14.63
sky 14.4 14.3 14.0
S/N 14.1 23.0 24.7
S/N(c) 12.5 21.9 23.6
SN(E/C) 0.52
1670025 50
RedGreenBlue
z18.64
znorm14.39
sky 13.9 14.0 14.2
S/N 11.2 19.3 21.0
S/N(c) 10.0 17.9 19.8
SN(E/C) 0.61
1670026 50
RedGreenBlue
z18.10
znorm13.85
sky 13.6 13.6 13.9
S/N 7.4 13.2 14.8
S/N(c) 6.5 12.1 14.1
SN(E/C) 0.67