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)
20170042 42
RedGreenBlue
z17.93
znorm13.87
sky 14.4 14.2 14.3
S/N 7.0 12.6 14.8
S/N(c) 8.7 7.9 8.1
SN(E/C) 0.72
20170043 42
RedGreenBlue
z17.93
znorm13.87
sky 14.4 14.3 14.4
S/N 7.1 12.7 14.6
S/N(c) 8.8 8.0 8.1
SN(E/C) 0.74
20170044 42
RedGreenBlue
z18.16
znorm14.10
sky 14.4 14.4 14.5
S/N 7.2 13.4 14.7
S/N(c) 9.6 8.5 8.5
SN(E/C) 0.67
20170045 42
RedGreenBlue
z18.14
znorm14.08
sky 14.4 14.4 14.5
S/N 7.1 13.8 15.4
S/N(c) 9.4 8.4 8.4
SN(E/C) 0.66
20170046 42
RedGreenBlue
z18.80
znorm14.74
sky 14.4 14.5 14.5
S/N 13.3 21.9 24.0
S/N(c) 13.6 11.3 11.6
SN(E/C) 0.54
20170047 42
RedGreenBlue
z18.75
znorm14.69
sky 14.4 14.5 14.4
S/N 12.7 21.4 23.3
S/N(c) 13.3 11.0 11.3
SN(E/C) 0.57