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Pioneer 11 Ultraviolet Photometer Daily Cruise Data

Published by SPDF | National Aeronautics and Space Administration | Catalog Last Checked: October 07, 2026 at 12:24 AM | Dataset Last Updated: September 29, 2026
This Pioneer 11 UV photometer data set contains daily averages of the spin-averaged short and long wavelength channels from April 6, 1973 onward. These data are used to study the interaction of the solar wind with the interstellar medium by measurements of spatial and temporal variations of the intensity of backscattered solar Lyman alpha emission at 1216 A and of the solar Helium line at 584 A.

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