Before revision: It is alleged that the real name of GGSE-4 was POPPY 5B and that it was a U.S. National Reconnaissance Office satellite designed to collect signals URL GGSE-4 remained operational from 1967 through URL 2020 near-miss On , IRAS was expected to pass as closely as 12 meters from the U.S. Air Force's Gravity Gradient Stabilization Experiment (GGSE-4) of 1967 , another un-deorbited satellite left aloft ; the .
After revision: It is alleged that the real name of GGSE-4 was POPPY 5B and that it was a U.S. National Reconnaissance Office satellite designed to collect signals URL GGSE-4 remained operational from 1967 through URL 2020 near-miss On , GGSE-4 was expected to pass as closely as 12 meters from IRAS , another un-deorbited satellite left aloft .