Enter up to 15 data set names (e.g., SWP16877,O45P021B0,...)
below to coplot spectra from
STIS, IUE, EUVE, HUT, BEFS, TUES, FOS, GHRS, or WUPPE.
KEPLER light curves (e.g., kplr007686127-2009131105131_llc)
can also be specified.
Scale factors and X-axis range can be specified either
here or on the displayed plot page.
(Caution: the averaging feature checks that the input spectra have the
same total number of points and averages them bin by bin. It will
cheerfully 'average' spectra with different wavelength ranges or
resolution, producing meaningless output.)