The main objective of the CubeRRT mission is to demonstrate the RFI mitigation technology on a flight-ready hardware in space, increasing the technology readiness level (TRL) from 6 to 7.

The CubeRRT (CubeSat Radiometer Radio Frequency Interference Technology Validation) mission was selected under NASA's In-space Validation of Earth Science Technologies (InVEST) program to demonstrate on-board, real-time RFI processing.

Over the past couple of decades passive microwave radiometry observations have shown an increase in man-made RF interference corrupting measured radiances and thus impacting geophysical retrievals. These man-made sources also known as Radio Frequency Interference (RFI) have impacted various geophysical retrievals such as soil-moisture, sea-surface salinity, wind-speed and wind-direction, atmospheric water-vapor, precipitation retrievals etc. The spectrum environment for passive microwave measurements is expected to become worse over the coming decades due to an increasing demand from the commercial industry.

Mission Events

July 13, 2018 - deployed from the International Space Station (ISS)

Scientific Instrument(s)

- wideband antenna unit
- radiometer front-end (RFE) unit
- radiometer digital back-end (RDB)