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Launch SuccessfulUnited States Air Force
Thor Delta E1: Isis 1
ISIS 1 (International Satellite for Ionosphere Studies) was an ionospheric observatory instrumented with sweep- and fixed-frequency ionosondes, a VLF receiver, energetic and soft particle detectors, an ion mass spectrometer, an electrostatic probe, an electrostatic analyzer, a beacon transmitter, and a cosmic noise experiment.
Thursday, 30 January 1969
Mission Data
🇺🇸United States Air ForceEst. 1947
Launch VehicleThor Delta E1
Vehicle FamilyThor
Vehicle Record16 of 17 launches (94.1%)
Provider TypeGovernment
Agency Record972 successes / 106 failures (90%)
Success Streak68 consecutive
Mission TypeEarth Science
Target OrbitElliptical Orbit
Launch PadSpace Launch Complex 2E
Location🇺🇸 Vandenberg SFB, CA, USA USA
Orbital Launches This Year#11
Agency Launches This Year#3
Launches From This Pad47
Launches From This Site923
Status Note
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
About Thor Delta E1
American orbital launch vehicle family with Thor first stage and a delta second stage.
Launch Site
Space Launch Complex 2E · 34.7516°N 120.6192°W
Launch data from Launch Library 2 by The Space Devs.