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On April 13, 2015 archive account management will transition to a new STScI account management system. Some people will receive email about how this change affects their account(s). For more information about these changes click here.

Spectral Data Coplot Utility

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.)
More help


  min wave (Å) max wave (Å)
Plot Options:  Plot Spectra Plot Average Plot Spectra and Average
Data Set Name
(without extension)
Scale Factor
(also available on plot page)