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)
2540027 47
RedGreenBlue
z18.56
znorm14.38
sky 13.9 13.7 13.7
S/N 11.1 18.7 19.6
S/N(c) 9.8 17.4 18.6
SN(E/C) 0.91
2540028 47
RedGreenBlue
z17.69
znorm13.51
sky 13.1 13.1 13.2
S/N 4.9 9.0 10.8
S/N(c) 4.5 8.0 10.0
SN(E/C) 0.90
2540029 47
RedGreenBlue
z14.96
znorm10.78
sky 12.3 12.3 12.3
S/N 0.4 0.7 0.7
S/N(c) 0.3 0.6 0.7
SN(E/C) 0.97
2540030 47
RedGreenBlue
z14.49
znorm10.31
sky 12.1 12.1 12.1
S/N 0.1 0.4 0.2
S/N(c) 0.2 0.4 0.6
SN(E/C) 0.98