Why is NOAA not providing more access to STEREO data?
The NOAA involvement in STEREO is limited to organizing the ground stations for receipt of the Space Weather Beacon and in providing the relevant data to forecasters. The STEREO Science Center processes the data and has data archive responsibilities. NOAA retrieves the real-time data from the SSC so it only makes sense that all users retrieve data from there. What SWPC has agreed to provide to customers and the general public are those tools developed for use by forecasters. That is, what you see on these STEREO pages is identical to what is being provided to SWPC forecasters.
