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)
18540040 47
RedGreenBlue
z19.16
znorm14.98
sky 14.9 14.6 14.6
S/N 14.8 23.6 27.6
S/N(c) 36.1 41.9 36.7
SN(E/C) 0.39
18540041 47
RedGreenBlue
z19.17
znorm14.99
sky 14.7 14.6 14.6
S/N 14.8 24.0 28.0
S/N(c) 35.8 42.3 35.8
SN(E/C) 0.37
18540042 47
RedGreenBlue
z19.17
znorm14.99
sky 14.9 14.6 14.6
S/N 14.1 23.6 26.8
S/N(c) 35.7 41.9 36.6
SN(E/C) 0.39
18540043 47
RedGreenBlue
z19.20
znorm15.02
sky 14.9 14.6 14.5
S/N 14.8 24.3 27.8
S/N(c) 36.6 42.8 36.7
SN(E/C) 0.38
18540044 47
RedGreenBlue
z19.20
znorm15.02
sky 15.0 14.7 14.6
S/N 14.9 23.8 27.6
S/N(c) 36.3 42.5 36.4
SN(E/C) 0.36
18540045 47
RedGreenBlue
z19.19
znorm15.01
sky 14.6 14.6 14.5
S/N 14.8 23.8 26.8
S/N(c) 36.1 42.7 36.3
SN(E/C) 0.38
18540046 47
RedGreenBlue
z19.13
znorm14.95
sky 14.6 14.5 14.5
S/N 14.3 22.5 26.6
S/N(c) 35.5 41.7 35.7
SN(E/C) 0.39
18540047 47
RedGreenBlue
z19.12
znorm14.94
sky 14.7 14.4 14.3
S/N 13.6 22.9 25.9
S/N(c) 35.3 41.7 35.7
SN(E/C) 0.40