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)
18100027 42
RedGreenBlue
z18.44
znorm14.38
sky 14.9 14.6 14.8
S/N 13.6 22.2 24.4
S/N(c) 14.0 10.1 15.8
SN(E/C) 0.74
18100028 42
RedGreenBlue
z18.41
znorm14.35
sky 14.9 14.9 14.9
S/N 13.7 22.6 24.7
S/N(c) 13.6 10.1 15.6
SN(E/C) 0.74
18100029 42
RedGreenBlue
z18.30
znorm14.24
sky 15.1 14.7 15.1
S/N 8.6 15.4 16.4
S/N(c) 13.4 10.0 15.4
SN(E/C) 0.71
18100030 42
RedGreenBlue
z18.42
znorm14.36
sky 14.9 15.0 14.9
S/N 9.2 16.6 18.1
S/N(c) 14.2 10.4 16.4
SN(E/C) 0.72
18100031 42
RedGreenBlue
z17.61
znorm13.55
sky 15.0 15.2 15.1
S/N 10.1 18.6 20.0
S/N(c) 8.3 6.8 10.4
SN(E/C) 0.85
18100032 42
RedGreenBlue
z17.54
znorm13.48
sky 15.1 15.0 15.1
S/N 9.9 17.8 19.0
S/N(c) 8.1 6.6 10.1
SN(E/C) 0.83