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)
18630025 42
RedGreenBlue
z18.71
znorm14.65
sky 14.6 14.3 14.5
S/N 9.7 17.9 21.5
S/N(c) 17.3 23.8 16.8
SN(E/C) 0.87
18630026 42
RedGreenBlue
z18.73
znorm14.67
sky 14.8 14.5 14.5
S/N 9.7 17.5 20.8
S/N(c) 17.4 24.3 17.0
SN(E/C) 0.91
18630027 42
RedGreenBlue
z18.02
znorm13.97
sky 14.7 14.7 14.7
S/N 7.0 14.0 16.8
S/N(c) 10.9 16.8 11.5
SN(E/C) 0.94
18630028 42
RedGreenBlue
z18.04
znorm13.99
sky 15.0 14.6 14.6
S/N 7.6 14.4 16.7
S/N(c) 11.1 17.0 11.8
SN(E/C) 0.94
18630029 42
RedGreenBlue
z17.75
znorm13.69
sky 14.9 14.8 14.9
S/N 8.6 16.6 19.8
S/N(c) 9.0 14.5 9.9
SN(E/C) 0.98
18630030 42
RedGreenBlue
z17.83
znorm13.77
sky 15.0 14.9 14.8
S/N 9.0 17.4 20.7
S/N(c) 9.7 15.2 10.4
SN(E/C) 0.94