By Marty Snow – LASP, University of Colorado
We are releasing a new data product for SOLSTICE. Instead of binning the daily spectrum to 1-nm intervals, users can now download the full-resolution spectrum for each day. The individual spectral scans are combined and a mean spectrum for the day is fit with a spline. The instrument has a spectral resolution of 0.1-nm, and each scan takes samples every 0.03-nm, i.e. three samples per slit width. Doppler shifts due to spacecraft motion slightly offset these scans, thus improving the statistical sampling. The new data product evaluates the spline fit every 0.03-nm, revealing details of the solar spectrum that had previously been obscured by binning. At the time the SORCE mission was proposed, it was assumed that 1-nm intervals were sufficient for state of the art climate models. Today’s models are more advanced, and may be able to take advantage of the full SOLSTICE resolution. The following figure shows a portion of the solar spectrum including the Magnesium II cores and the spectral variability over one rotation
