TOP: intensity versus angle (vertical) and image number (horizontal). This data is for r1=1.47 Rsun. White indicates intensity > 60 erg/sec/cm^2/sr/A

BOTTOM: estimated fractional error due to slit position:
error = abs((data2-data1)/data0)
where data0 is for r1=1.47, data2 is for r1=1.50, and data1 is for r=1.44 Rsun. White is for error=1.0 (100% error).