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)
20080026 42
RedGreenBlue
z17.52
znorm13.46
sky 14.3 14.3 14.5
S/N 5.4 9.9 11.4
S/N(c) 8.2 7.7 5.5
SN(E/C) 0.94
20080027 42
RedGreenBlue
z17.73
znorm13.68
sky 14.6 14.5 14.6
S/N 6.5 11.5 13.2
S/N(c) 9.5 8.5 6.1
SN(E/C) 0.90
20080028 42
RedGreenBlue
z17.80
znorm13.74
sky 14.7 14.5 14.8
S/N 7.1 12.3 14.6
S/N(c) 9.3 8.3 6.0
SN(E/C) 0.90
20080029 42
RedGreenBlue
z17.53
znorm13.47
sky 14.6 14.5 14.8
S/N 5.8 10.8 12.3
S/N(c) 7.5 7.1 5.0
SN(E/C) 0.93
20080030 42
RedGreenBlue
z17.98
znorm13.92
sky 14.6 14.5 14.6
S/N 8.4 14.5 16.6
S/N(c) 10.3 9.0 6.5
SN(E/C) 0.92
20080031 42
RedGreenBlue
z17.68
znorm13.62
sky 14.6 14.5 14.6
S/N 6.8 12.0 13.4
S/N(c) 8.4 7.8 5.6
SN(E/C) 0.93