NASA Prepares for Dual Launches of CUBESATs to Improve Earth Climate Models

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ICARO Media Group
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19/05/2024 17h58

NASA is making preparations for the consecutive launches of two CUBESATs that aim to enhance our understanding of the Earth's climate. Scheduled to launch individually in May 2024, these twin CUBESATs are part of NASA's Polar Radiant Energy in the Far Infrared Experiment (PREFIRE) mission. The first CUBESAT is set to launch no earlier than May 22, while the second one will follow within three weeks.

Each of these 6U CUBESATs is equipped with a thermal infrared spectrometer, utilizing technologies previously employed on other spacecraft but repackaged to fit the size and mass constraints imposed by the CUBESAT format. Their primary objective is to collect data on emissions at far infrared wavelengths, specifically those longer than 15 microns, in the polar regions of the Earth.

During a recent briefing on May 15, project and NASA officials emphasized the significance of this data in understanding the Earth's heat loss to space at the poles. Tristan L'Ecuyer, the principal investigator for PREFIRE at the University of Wisconsin-Madison, highlighted the rapid warming of the Arctic and its potential consequences. This warming has both local and global implications, from sea-level rise to broader weather system changes.

PREFIRE will generate detailed measurements of radiant heat emitted from the polar regions, providing crucial insights into how various factors, such as clouds, atmospheric humidity, and changing surface conditions, impact heat loss. While a single CUBESAT could accomplish these measurements, the decision to launch two satellites into different sun-synchronous orbits enables additional data collection. The second CUBESAT, flying over approximately six hours later, will facilitate the assessment of how changes, like ice sheet melting or cloud formations, affect emissions.

To fulfill the specific mission requirements, NASA selected Rocket Lab's Electron rocket for dedicated launches of the PREFIRE CUBESATs. The launches will take place from Rocket Lab's Launch Complex 1 in New Zealand. Although the Electron rockets have excess capacity, Rocket Lab's CEO, Peter Beck, confirmed that there will be no secondary payloads or technology demonstrations on these missions. The focus is solely dedicated to the PREFIRE spacecraft.

The selection of the PREFIRE mission in 2018 falls under NASA's Earth Venture program, which aims to conduct research using cost-effective methods. With a budget cap of nearly $33 million, PREFIRE showcases NASA's ability to address targeted research questions using more affordable options. Karen St. Germain, director of NASA's Earth science division, emphasized the cost-effectiveness of missions like PREFIRE, which utilize smaller payloads and engage commercial partners for launch services.

The PREFIRE mission signifies NASA's commitment to advancing our understanding of Earth's climate patterns through innovative approaches. These back-to-back launches of twin CUBESATs will undoubtedly contribute valuable data and insights to enhance climate models, enabling scientists to better comprehend and predict the Earth's changing climate.

Note: The article has been written based on the information provided by the user.

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