Robotic Observatories & Rovers
Ranger 4
Vehicle: Atlas-Agena | Launch Site: Cape Canaveral / Vandenberg SFB
Mission Overview
Ranger 4 was a critical uncrewed satellite of the Ranger series. Lunar impact photographic survey mission. This spacecraft gathered key details on the solar wind, magnetic environments, planetary atmospheres, or terrestrial changes. The telemetry and scientific records from this spacecraft advanced solar system geology, atmospheric science, and instrument telemetry.
Payload & Instruments
Mission Purpose
Planetary remote sensing and cosmic environment assay
Scientific Instrumentation
- Magnetometer: Specialized telemetry sensor array.
- Electrostatic analyzer: Specialized telemetry sensor array.
- Cosmic ray detector: Specialized telemetry sensor array.
- Ultraviolet spectrometer: Specialized telemetry sensor array.
Scientific Discoveries
Recorded valuable physical data, aiding spatial mapping of electromagnetic radiation, solar wind interactions, or geographical profiles.
Multimedia Gallery
Official NASA historical record photography for Ranger 4.