Thor Delta E | ESSA 4
Status: Success | Launched: Jan 26, 1967 17:31 UTC
Launch Provider & Rocket
- Provider: United States Air Force (Government)
- Rocket: Thor Delta E — Thor family
Mission
The ESSA series was the second generation of US meterological satellites after the TIROS (Television & Infra-Red Observation Satellite) series. They were also called OT (Operational TIROS), TOS (TIROS Operational Satellite).
- Type: Earth Science
- Orbit: Sun-Synchronous Orbit (SSO)
Launch Site
- Pad: Space Launch Complex 2E
- Location: Vandenberg SFB, CA, USA
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Launch data sourced automatically from the Launch Library 2 API. Last refreshed: 2026-10-07T01:00:56.820087+00:00.