Landsat 7


The Earthnet Programme: 40 years of evolution and future challenges
ESA's Earthnet Programme provided the initial means to access and exploit Earth Observation data.

blue arrow Mission Overview

The Landsat program is a joint USGS and NASA-led enterprise for Earth Observation that represents the world's longest running system of satellites for moderate-resolution optical remote sensing for land, coastal areas and shallow waters.

Landsat 7 was launched in 1999 and remains operational. The Scan Line Corrector failed in 2003, however, causing data acquisitions to be degraded.

Mission Parameters
Launch Date 15 April 1999
Orbit Height 705 km
Orbit Type Sun-synchronous polar
Repeat Cycle 16 days
End of Service Still operational
Inclination 98.2°
Orbit Period 99 min
Equatorial Crossing time 10:00 a.m
Onboard sensors provided under TPM Enhanced Thematic Mapper Plus (ETM+)

Landsat 7 is part of ESA's Third Party Missions Programme, in which ESA has an agreement to distribute data products from the missions.

blue arrow Mission Objectives

Landsat 7 continues the goal of the Landsat programme to image repetitively Earth's land and coastal areas with the aim of monitoring changes to those areas over time. The satellite continues to provide data continuity for the Thematic Mapper aboard Landsat 4 and 5, utilising an enhanced version of the instrument.

blue arrow Instruments

Landsat 7 ETM+ instrument
The Enhanced Thematic Mapper Plus (ETM+) 8-band whiskbroom scanning radiometer is the main instrument on board Landsat 7.
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blue arrow Data

blue arrow DATA DOWNLOAD

Download data from Landsat-7 mission through the ESA TPM LDS online dissemination System. The data is freely available to registered EO-SSO users.


ESA offers to registered user the access through the Online Dissemination server to the following data collection

blue arrow DATA TOOLS

Landsat 7 data can be processed using the HEDAVI tool. The HEDAVI (HEritage DAta Visualisation) service enables users to discover a wealth of heritage data from ESA's ERS and Envisat missions, as well as from Landsat 5 and Landsat 7.

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blue arrow DATA QUALITY

Quality Control is monitoring routinely the status of the spacecraft (payload and platform) and to check if the derived products meet the quality requirements along mission life-time. Learn about the quality control activities for the ETM instrument: