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)
19970052 47
RedGreenBlue
z18.68
znorm14.50
sky 14.7 14.3 14.6
S/N 13.8 23.4 26.4
S/N(c) 15.2 7.7 23.1
SN(E/C) 0.72
19970053 47
RedGreenBlue
z18.60
znorm14.42
sky 14.8 14.7 14.9
S/N 12.8 22.0 24.7
S/N(c) 14.5 7.4 22.2
SN(E/C) 0.77
19970054 47
RedGreenBlue
z18.66
znorm14.48
sky 14.7 14.6 15.0
S/N 13.2 22.8 25.8
S/N(c) 14.8 7.7 22.9
SN(E/C) 0.76
19970055 47
RedGreenBlue
z18.66
znorm14.48
sky 14.7 14.8 14.7
S/N 13.1 22.8 25.8
S/N(c) 15.1 7.6 23.2
SN(E/C) 0.77
19970056 47
RedGreenBlue
z18.64
znorm14.46
sky 14.8 14.8 14.7
S/N 12.9 22.8 25.3
S/N(c) 15.0 7.6 23.0
SN(E/C) 0.74
19970057 47
RedGreenBlue
z18.74
znorm14.56
sky 14.7 14.8 15.2
S/N 13.6 24.0 27.1
S/N(c) 15.6 8.0 24.1
SN(E/C) 0.74
19970058 47
RedGreenBlue
z18.81
znorm14.63
sky 14.7 14.8 15.1
S/N 14.6 24.8 28.0
S/N(c) 16.5 8.3 24.7
SN(E/C) 0.73
19970059 47
RedGreenBlue
z18.84
znorm14.66
sky 14.9 14.9 15.1
S/N 14.9 25.4 28.9
S/N(c) 16.2 8.5 25.3
SN(E/C) 0.69