Radarsat-2

Radarsat-2
Name	Radarsat-2
Mission type	Earth observation
Operator	Canadian Space Agency
Launch date	December 14, 2007
Launch vehicle	Soyuz FG
Launch site	Baikonur Cosmodrome
Mission duration	7 years (planned)

Radarsat-2 is a Canadian Space Agency Earth observation satellite that was launched on December 14, 2007, from the Baikonur Cosmodrome in Kazakhstan using a Soyuz FG launch vehicle provided by Roscosmos. The satellite was built by MDA Ltd. and is operated by the Canadian Space Agency in collaboration with NASA, European Space Agency, and other international partners, including the German Aerospace Center and the Italian Space Agency. Radarsat-2 is designed to provide high-resolution synthetic aperture radar (SAR) images of the Earth's surface, and its data is used for a variety of applications, including agriculture, forestry, geology, and oceanography, in support of organizations such as the Food and Agriculture Organization of the United Nations and the National Oceanic and Atmospheric Administration.

Introduction

Radarsat-2 is a follow-on mission to the Radarsat-1 satellite, which was launched in 1995 and operated until 2013, providing critical data to support disaster response efforts, such as the Hurricane Katrina relief efforts, and environmental monitoring initiatives, including the Kyoto Protocol. The new satellite features several improvements over its predecessor, including higher resolution and a wider range of imaging modes, allowing it to support a broader range of applications, such as land use planning and natural resource management, in partnership with organizations like the United States Geological Survey and the European Environment Agency. Radarsat-2 is also designed to be compatible with other Earth observation satellites, such as the Envisat and ERS-2 satellites operated by the European Space Agency, and the Landsat 7 satellite operated by NASA. This compatibility enables the creation of combined datasets and enhances the overall value of the data, supporting initiatives like the Group on Earth Observations and the Committee on Earth Observation Satellites.

Spacecraft Design

The Radarsat-2 spacecraft was designed and built by MDA Ltd., a leading space technology company based in Canada, in collaboration with other companies, including Thales Alenia Space and Astrium. The satellite features a synthetic aperture radar (SAR) instrument that operates at a frequency of 5.3 gigahertz and has a resolution of up to 1 meter, allowing it to capture high-quality images of the Earth's surface, even in cloudy or dark conditions, supporting applications like crop monitoring and oil spill detection in partnership with organizations like the National Institute of Standards and Technology and the International Maritime Organization. The spacecraft also includes a payload data handling system, a power generation system, and a communication system that enables the transmission of data to ground stations operated by the Canadian Space Agency and other partners, including the European Space Agency and the NASA.

Mission Objectives

The primary mission objectives of Radarsat-2 are to provide high-resolution SAR images of the Earth's surface for a variety of applications, including agriculture, forestry, geology, and oceanography, in support of organizations like the Food and Agriculture Organization of the United Nations and the National Oceanic and Atmospheric Administration. The satellite is also designed to support disaster response efforts, such as flood mapping and damage assessment, in partnership with organizations like the United Nations Office for the Coordination of Humanitarian Affairs and the Federal Emergency Management Agency. Additionally, Radarsat-2 is used to monitor environmental changes, such as deforestation and sea ice coverage, supporting initiatives like the Kyoto Protocol and the Paris Agreement, in collaboration with organizations like the Intergovernmental Panel on Climate Change and the World Wildlife Fund.

Launch and Orbit

Radarsat-2 was launched on December 14, 2007, from the Baikonur Cosmodrome in Kazakhstan using a Soyuz FG launch vehicle provided by Roscosmos. The satellite was placed into a sun-synchronous orbit at an altitude of approximately 798 kilometers, allowing it to capture images of the Earth's surface at a consistent local time, supporting applications like land use planning and natural resource management, in partnership with organizations like the United States Geological Survey and the European Environment Agency. The orbit also enables the satellite to maintain a consistent ground track, which is essential for creating mosaics and time-series datasets, supporting initiatives like the Group on Earth Observations and the Committee on Earth Observation Satellites.

Operations and Applications

Radarsat-2 is operated by the Canadian Space Agency in collaboration with other international partners, including the NASA, European Space Agency, and the German Aerospace Center. The satellite is used to support a variety of applications, including agriculture, forestry, geology, and oceanography, in support of organizations like the Food and Agriculture Organization of the United Nations and the National Oceanic and Atmospheric Administration. The data from Radarsat-2 is also used to support disaster response efforts, such as flood mapping and damage assessment, in partnership with organizations like the United Nations Office for the Coordination of Humanitarian Affairs and the Federal Emergency Management Agency. Additionally, the satellite is used to monitor environmental changes, such as deforestation and sea ice coverage, supporting initiatives like the Kyoto Protocol and the Paris Agreement, in collaboration with organizations like the Intergovernmental Panel on Climate Change and the World Wildlife Fund.

Technical Specifications

Radarsat-2 features a synthetic aperture radar (SAR) instrument that operates at a frequency of 5.3 gigahertz and has a resolution of up to 1 meter, allowing it to capture high-quality images of the Earth's surface, even in cloudy or dark conditions, supporting applications like crop monitoring and oil spill detection in partnership with organizations like the National Institute of Standards and Technology and the International Maritime Organization. The satellite also includes a payload data handling system, a power generation system, and a communication system that enables the transmission of data to ground stations operated by the Canadian Space Agency and other partners, including the European Space Agency and the NASA. The spacecraft has a mass of approximately 2,300 kilograms and a power consumption of around 2,000 watts, supporting a mission duration of 7 years, in collaboration with organizations like the European Space Agency and the NASA.

Category:Earth observation satellites