Canadian small ionospheric observatory instrumented with a sweep-frequency ionospheric sounder, a VLF receiver, an energetic particle experiment, a cosmic noise experiment, and an electrostatic probe. November 29, 1965 at 04:48 UTC · Launch Successful Thor SLV-2 Agena B — United States Air Force, to Low Earth Orbit Space Launch Complex 2E, Vandenberg SFB, CA, USA The world's 502nd orbital launch attempt, and 109th of 1965. Data: Launch Library 2, The Space Devs.