An Experiment to measure the magnitude and variation of the solar constant from a manned orbiting spacecraft, 1966 February

An Experiment to measure the magnitude and variation of the solar constant from a manned orbiting spacecraft, 1966 February, - 04 02 GAN 1 Sub- 4 Box 2 Folder 41, Box: 2, Folder: 41. Gordon A. Newkirk, Jr. Papers, - 04-02-GAN. National Center for Atmospheric Research (NCAR) Archives. https://aspace.archives.ucar.edu/repositories/2/archival_objects/8132 Accessed January 17, 2026.