COSMIAC's third CubeSat mission will study ionosphere

May 14, 2015 by Kim Delker, University of New Mexico
COSMIAC’s third CubeSat mission will study ionosphere

The University of New Mexico's Configurable Space Microsystems Innovations and Applications Center (COSMIAC) is preparing its third CubeSat, a small, cube-shaped satellite, for a space launch.

The project, called Scintillation Observations and Response of the Ionosphere to Electrodynamics (SORTIE), will involve the launch of a CubeSat to collect data to study the ionospheric F-region.

Alonzo Vera, a scientist at COSMIAC and principal investigator for the project on the UNM side, said that the ionosphere affects radio signals including and GPS, but that there are many aspects of it that are not understood.

There are many, many things we don't know and there is a lot of room for improvement of our current models. We are hoping to gather more data to have a more precise model of how it [the ionosphere] behaves," Vera said. "The goal of the will be to evaluate how our current knowledge and models of some aspects of the ionosphere relates to reality."

The SORTIE mission features a 6U , which stands for 6 units. A 1-unit CubeSat measures 10×10×10. 6U CubeSats are approximately 10x20x30 cm. This larger size allows for more complex payloads and data collection.

SORTIE's scientific payload is composed of two instruments: an ion velocity meter to measure the direction of ionospheric flows and a micro planar langmuir probe to measure ionospheric densities. The CubeSat's components are a command and data-handling unit (the brain of the satellite), a UHF radio, the power subsystem, including batteries to store energy and solar panels to gather energy from the sun, and an attitude determination and control system to keep the satellite aligned properly after it is launched from the spacecraft.

Although researchers won't know which mission the CubeSat will be a part of, it is estimated that it will be launched around spring 2017.

Craig Kief, deputy director of COSMIAC, explained that the 6U CubeSat is a relatively new format for CubeSats and there have been few 6U satellite launches, especially at university centers.

Kief said the CubeSat is needed to study the because we can't study it here on Earth. It must be studied in its own environment. This latest mission will also help establish COSMIAC, a part of the School of Engineering, as a center of expertise in this area.

"The SORTIE mission is important to us in many ways," Kief said. "It puts us professionally on the stage for more collaborations with bigger projects with major universities."

Explore further: Picasso CubeSat to investigate upper layers of the atmostphere

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