Pilgrim satellite, Harvard solar radio physics explorer, v. 1, v. 3, 1965 October

Pilgrim satellite, Harvard solar radio physics explorer, v. 1, v. 3, 1965 October, - 04 02 GAN 1 Sub- 4 Box 3 Folder 76, Box: 3, Folder: 76. Gordon A. Newkirk, Jr. Papers, - 04-02-GAN. National Center for Atmospheric Research (NCAR) Archives. https://aspace.archives.ucar.edu/repositories/2/archival_objects/8167 Accessed April 21, 2026.