NASA's Terra satellite

NASA's Terra satellite
Name	NASA's Terra satellite
Mission type	Earth observation
Operator	National Aeronautics and Space Administration

NASA's Terra satellite is a flagship Earth Observing System (EOS) mission developed by the National Aeronautics and Space Administration (NASA) in collaboration with Japan Aerospace Exploration Agency (JAXA), Canadian Space Agency (CSA), and European Space Agency (ESA). The Terra satellite was launched on December 18, 1999, from Vandenberg Air Force Base aboard a Lockheed Martin Atlas IIAS rocket, with the primary objective of understanding the Earth's climate system and its interactions with the atmosphere, oceans, and land surfaces. The mission is part of the Earth Science Enterprise program, which aims to study the Earth as a system, involving NASA, National Oceanic and Atmospheric Administration (NOAA), and United States Geological Survey (USGS). The Terra satellite is also closely related to other Earth Observing System missions, such as Aqua (satellite), Aura (satellite), and ICESat.

Introduction

The Terra satellite is a critical component of the Earth Observing System (EOS), which is a series of NASA missions designed to study the Earth's climate system, weather patterns, and natural resources. The Terra satellite is equipped with a suite of advanced instruments, including the Moderate Resolution Imaging Spectroradiometer (MODIS), Multi-angle Imaging SpectroRadiometer (MISR), Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), and Clouds and the Earth's Radiant Energy System (CERES). These instruments provide high-resolution data on the Earth's surface temperature, atmospheric conditions, cloud cover, and ocean currents, which are essential for understanding the Earth's climate system and its interactions with the atmosphere, oceans, and land surfaces. The Terra satellite is also closely coordinated with other Earth Observing System missions, such as Landsat 7, EO-1, and QuikSCAT, to provide a comprehensive understanding of the Earth's climate system.

Spacecraft Design

The Terra satellite is a spacecraft designed and built by Lockheed Martin and NASA's Goddard Space Flight Center. The spacecraft is equipped with a solar array and a nickel-hydrogen battery to provide power, and a propulsion system to maintain its orbit and attitude. The spacecraft is also equipped with a communication system that allows it to transmit data to the NASA Deep Space Network and receive commands from the NASA Mission Control Center. The Terra satellite is designed to operate in a sun-synchronous orbit at an altitude of approximately 705 kilometers, which allows it to collect data on the Earth's climate system and its interactions with the atmosphere, oceans, and land surfaces. The spacecraft is also designed to work in conjunction with other Earth Observing System missions, such as Aqua (satellite), Aura (satellite), and ICESat, to provide a comprehensive understanding of the Earth's climate system.

Mission Objectives

The primary objective of the Terra satellite is to understand the Earth's climate system and its interactions with the atmosphere, oceans, and land surfaces. The mission objectives include studying the Earth's energy balance, water cycle, and carbon cycle, as well as understanding the impacts of climate change on the Earth's climate system. The Terra satellite is also designed to provide data on the Earth's surface temperature, atmospheric conditions, cloud cover, and ocean currents, which are essential for understanding the Earth's climate system and its interactions with the atmosphere, oceans, and land surfaces. The mission is closely coordinated with other Earth Observing System missions, such as Landsat 7, EO-1, and QuikSCAT, to provide a comprehensive understanding of the Earth's climate system. The Terra satellite is also closely related to other NASA missions, such as NASA's Earth Science Division and NASA's Climate Change Research Initiative.

Instruments

The Terra satellite is equipped with a suite of advanced instruments, including the Moderate Resolution Imaging Spectroradiometer (MODIS), Multi-angle Imaging SpectroRadiometer (MISR), Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), and Clouds and the Earth's Radiant Energy System (CERES). These instruments provide high-resolution data on the Earth's surface temperature, atmospheric conditions, cloud cover, and ocean currents, which are essential for understanding the Earth's climate system and its interactions with the atmosphere, oceans, and land surfaces. The MODIS instrument is designed to provide data on the Earth's surface temperature, atmospheric conditions, and cloud cover, while the MISR instrument provides data on the Earth's atmospheric conditions and cloud cover. The ASTER instrument provides data on the Earth's surface temperature and land surface properties, while the CERES instrument provides data on the Earth's energy balance and radiative fluxes. The Terra satellite is also closely coordinated with other Earth Observing System missions, such as Aqua (satellite), Aura (satellite), and ICESat, to provide a comprehensive understanding of the Earth's climate system.

Operations and Orbit

The Terra satellite is operated by NASA's Goddard Space Flight Center and is launched into a sun-synchronous orbit at an altitude of approximately 705 kilometers. The spacecraft is equipped with a propulsion system that allows it to maintain its orbit and attitude, and a communication system that allows it to transmit data to the NASA Deep Space Network and receive commands from the NASA Mission Control Center. The Terra satellite is designed to operate in a sun-synchronous orbit, which allows it to collect data on the Earth's climate system and its interactions with the atmosphere, oceans, and land surfaces. The spacecraft is also designed to work in conjunction with other Earth Observing System missions, such as Landsat 7, EO-1, and QuikSCAT, to provide a comprehensive understanding of the Earth's climate system. The Terra satellite is closely related to other NASA missions, such as NASA's Earth Science Division and NASA's Climate Change Research Initiative.

Scientific Contributions

The Terra satellite has made significant contributions to our understanding of the Earth's climate system and its interactions with the atmosphere, oceans, and land surfaces. The mission has provided high-resolution data on the Earth's surface temperature, atmospheric conditions, cloud cover, and ocean currents, which are essential for understanding the Earth's climate system and its interactions with the atmosphere, oceans, and land surfaces. The Terra satellite has also provided data on the Earth's energy balance, water cycle, and carbon cycle, which are critical for understanding the impacts of climate change on the Earth's climate system. The mission is closely coordinated with other Earth Observing System missions, such as Aqua (satellite), Aura (satellite), and ICESat, to provide a comprehensive understanding of the Earth's climate system. The Terra satellite is also closely related to other NASA missions, such as NASA's Earth Science Division and NASA's Climate Change Research Initiative, and has contributed to the work of Intergovernmental Panel on Climate Change (IPCC) and United Nations Framework Convention on Climate Change (UNFCCC). The Terra satellite has received numerous awards, including the NASA Group Achievement Award and the American Meteorological Society (AMS) Award for Outstanding Contribution to the Advance of Applied Meteorology.

Category:Earth observation satellites