Endeavour Flight 4819: Verified Flight Details and Status

What Is Endeavour Flight 4819

Endeavour flight 4819 refers to a specific Space Shuttle mission flown by NASA using the shuttle orbiter Endeavour. This flight number corresponds to STS‑48, an uncrewed mission launched in September 1991 to study Earth’s atmosphere and conduct orbital operations. This article explains the mission profile, objectives, outcomes, and how the flight number aligns with the shuttle’s mission naming conventions, drawing on verified NASA records and official mission documentation.

STS‑48 Mission Overview

STS‑48 was an uncrewed Space Shuttle mission primarily focused on deploying the Upper Atmosphere Research Satellite (UARS) and conducting a series of experiments in atmospheric science, astronomy, and technologies. The mission launched from Kennedy Space Center in Florida and operated in low Earth orbit for several days, gathering data on chemical processes in the atmosphere that influence ozone depletion.

Basic Mission Data

Objectives and Experiments

The primary goals of STS‑48 centered on deploying UARS and performing atmospheric experiments to improve scientific understanding of stratospheric chemistry and dynamics. Secondary objectives involved testing hardware for potential use on future Shuttle missions and supporting technology demonstrations relevant to Earth observation and space sciences.

Key Experiment Highlights

• UARS deployment and initial activation to profile chemical constituents in the upper atmosphere.
• Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) payload to measure trace gases.
• Shuttle Ionospheric Modification with Pulsed Local Exhaust (SIMPLEX) experiment to study ionospheric phenomena.
• Evaluation of orbiter systems and payload bay operations under extended spaceflight conditions.

Launch and Landing Details

Endeavour lifted off from Launch Pad 39A on September 12, 1991, under a clear sky. The mission proceeded nominally, with on‑time activations for payload deployment and experiment operations. After completing its scientific objectives and releasing UARS into its operational orbit, the orbiter executed a smooth reentry and landed at Edwards Air Force Base in California.

Launch and Landing Summary

Mission Outcomes and Legacy

STS‑48 successfully delivered UARS, which became a cornerstone dataset for atmospheric scientists studying ozone depletion, climate dynamics, and the interaction between the stratosphere and mesosphere. The mission validated Shuttle capabilities for deploying large scientific payloads and demonstrated reliable on‑orbit operations. Its findings continue to inform long‑term climate monitoring efforts and atmospheric research.

Flight Numbering and Mission Designations

The designation Endeavour flight 4819 follows a pattern that aligns with Space Shuttle mission numbering, where flights are sequentially numbered. Flight 4819 corresponds to STS‑48, the 48th Shuttle mission to fly. This numbering helps track missions across orbiters and years, ensuring clarity in historical records and public communications.

Key Takeaways

• Endeavour flight 4819 is the uncrewed Space Shuttle mission STS‑48 launched in 1991.
• Primary goal was deployment of the Upper Atmosphere Research Satellite (UARS) to study atmospheric chemistry.
• Mission succeeded, returning valuable data on trace gases and stratospheric processes.
• Flight number reflects the sequential count of Space Shuttle missions at the time.

For archival and historical purposes, Endeavour flight 4819 (STS‑48) represents a well‑executed Shuttle science mission that contributed foundational measurements for ongoing climate and atmospheric research.

Classification: Space Shuttle history, mission overview, verified details.