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)
0 0
RedGreenBlue
z17.64
znorm Inf
sky -Inf -Inf -Inf
S/N 10.8 20.1 22.8
S/N(c) 0.0 0.0 0.0
SN(E/C) 0.94

IPAIRNAMESHIFTNEWSHIFTS/N NAMESHIFTNEWSHIFTS/N
0 20080031 0.501270 0.00000 17.6450 20080026 0.00000 0.501270 17.4522
1 20080028 0.500051 0.00121897 17.7529 20080030 -0.00214121 0.503411 17.9560
2 20080027 0.499035 0.00223500 17.6950 20080029 -0.00156250 0.502832 17.4924