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

Frame	Nreads	Zeropoints	Mag 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)
19970027	94	Red Green Blue z 19.52 znorm 14.58 sky 14.6 14.3 14.4 S/N 25.7 34.9 42.7 S/N(c) 14.7 54.8 15.7 SN(E/C) 0.68
19970028	94	Red Green Blue z 19.59 znorm 14.65 sky 14.8 14.6 14.6 S/N 26.0 36.1 43.5 S/N(c) 14.9 55.4 15.9 SN(E/C) 0.68
19970029	94	Red Green Blue z 19.22 znorm 14.29 sky 13.6 13.5 13.4 S/N 21.0 29.3 34.5 S/N(c) 12.2 45.9 13.1 SN(E/C) 0.76
19970030	94	Red Green Blue z 17.14 znorm 12.21 sky 12.7 12.6 12.5 S/N 5.3 8.0 9.3 S/N(c) 3.2 10.1 2.6 SN(E/C) 1.00