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)
18380042 42
RedGreenBlue
z18.31
znorm14.25
sky 14.7 14.4 14.4
S/N 10.5 17.4 20.0
S/N(c) 12.3 17.4 16.2
SN(E/C) 0.63
18380043 42
RedGreenBlue
z18.38
znorm14.32
sky 14.8 14.5 14.3
S/N 9.8 17.2 19.7
S/N(c) 12.8 17.8 16.6
SN(E/C) 0.60
18380044 42
RedGreenBlue
z18.43
znorm14.38
sky 14.8 14.7 14.3
S/N 5.6 11.2 11.9
S/N(c) 13.0 18.2 16.9
SN(E/C) 0.60
18380045 42
RedGreenBlue
z18.37
znorm14.31
sky 14.9 14.6 14.4
S/N 5.9 11.1 12.2
S/N(c) 12.7 17.7 16.7
SN(E/C) 0.60
18380046 42
RedGreenBlue
z17.59
znorm13.53
sky 15.1 14.9 14.6
S/N 1.4 4.9 4.7
S/N(c) 7.9 12.1 11.1
SN(E/C) 0.78
18380047 42
RedGreenBlue
z17.54
znorm13.48
sky 14.9 14.8 14.8
S/N 1.6 3.7 3.5
S/N(c) 7.4 11.7 10.7
SN(E/C) 0.78