# Landsat 2

> American Earth-observing satellite launched in 1975

**Wikidata**: [Q6485033](https://www.wikidata.org/wiki/Q6485033)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Landsat_2)  
**Source**: https://4ort.xyz/entity/landsat-2

## Summary
Landsat 2 is an American Earth-observing satellite launched by NASA on January 22, 1975. It was the second satellite in the Landsat program, designed to monitor Earth from orbit.

## Key Facts
- Launch Date: January 22, 1975
- Operator: National Aeronautics and Space Administration (NASA)
- COSPAR ID: 1975-004A
- Launch Vehicle: Delta 2000
- Launch Site: Vandenberg Space Launch Complex 2
- Instance Of: Earth observation satellite
- Predecessor: Landsat 1 (active 1972-1978)
- SCN Identifier: 07615
- Wikimedia Commons Category: Landsat 2

## FAQs
### Q: What was the primary purpose of Landsat 2?
A: Landsat 2 was designed to observe Earth from orbit as part of the Landsat program, providing imagery for environmental monitoring and land-use assessment.

### Q: When and where was Landsat 2 launched?
A: Landsat 2 was launched on January 22, 1975, from Vandenberg Space Launch Complex 2 using a Delta 2000 rocket.

### Q: How did Landsat 2 relate to other Landsat satellites?
A: Landsat 2 was preceded by Landsat 1 and succeeded by subsequent Landsat missions, forming a continuous series of Earth-observing satellites.

### Q: Who operated Landsat 2?
A: Landsat 2 was operated by the National Aeronautics and Space Administration (NASA).

## Why It Matters
Landsat 2 advanced Earth observation capabilities by providing systematic, repeatable imagery of our planet's surface. It enabled scientists to track environmental changes, monitor agricultural productivity, and map land cover with unprecedented regularity. By building on Landsat 1's foundation, Landsat 2 ensured continuity in satellite-based Earth monitoring, establishing a crucial dataset for climate research, resource management, and urban development studies that continues to inform scientific and policy decisions today.

## Notable For
- First satellite in the Landsat program launched in 1975 after Landsat 1's initial mission
- Utilized a Delta 2000 launch vehicle from Vandenberg Space Launch Complex 2
- Maintained the Earth observation satellite class designation critical for orbital classification
- Part of the foundational Landsat series establishing long-term Earth monitoring protocols
- One of the earliest NASA satellites with a unique COSPAR ID (1975-004A) for international tracking

## Body
### Overview
Landsat 2 is an American Earth-observing satellite launched on January 22, 1975. It represents the second mission in the United States' Landsat program, designed to capture Earth imagery from orbit.

### Mission Parameters
- **Launch Date**: January 22, 1975
- **Launch Site**: Vandenberg Space Launch Complex 2
- **Launch Vehicle**: Delta 2000
- **Operator**: National Aeronautics and Space Administration (NASA)
- **Mission Class**: Earth observation satellite
- **SCN**: 07615
- **COSPAR ID**: 1975-004A

### Program Context
- Predecessor to Landsat 3
- Succeeded by Landsat 1 (initial mission)
- Part of the Delta 2000 expendable launch system series
- Constitutes a core element of NASA's Earth observation infrastructure

### Technical Specifications
- **Design Type**: Artificial satellite for Earth observation
- **Orbital Purpose**: Surface imaging and environmental monitoring
- **Data Format**: Multispectral imagery collection (specific sensors not detailed in source)
- **Archival Status**: Data available via Wikimedia Commons (aerial view: https://commons.wikimedia.org/wiki/Special:FilePath/Landsat_2_with_Data_Striping.gif)

### Administrative Details
- **Wikipedia Title**: Landsat 2
- **Freebase ID**: /m/027rj0g
- **Wolfram Language Code**: Entity["Satellite", "07615"]
- **Wikipedia Languages**: Arabic, English, Spanish, Persian, Indonesian, Japanese, and others
- **Sitelink Count**: 11 (as per available data)

## References

1. Jonathan's Space Report
2. Freebase Data Dumps. 2013