Cost-effective High E-Frequency Satellite (CHEFSat) - 01.16.19

Overview | Description | Applications | Operations | Results | Publications | Imagery

ISS Science for Everyone

Science Objectives for Everyone
Cost-effective High E-Frequency Satellite (CHEFSat) tests and prepares consumer communications technology for use in space. The growing range of devices, components and miniaturized technology available on consumer markets represents a boon for space exploration and cost management. CHEFSat specifically readies a consumer-grade radio frequency device for wider space use by testing its safety and effectiveness in a working CubeSat deployed from the International Space Station (ISS).
Science Results for Everyone
Information Pending

The following content was provided by US Naval Research Laboratory, and is maintained in a database by the ISS Program Science Office.
Experiment Details


Principal Investigator(s)
US Naval Research Laboratory, US Naval Research Laboratory, Washington, DC, United States

Information Pending

US Naval Research Laboratory, Washington, DC, United States

Sponsoring Space Agency
National Aeronautics and Space Administration (NASA)

Sponsoring Organization
National Laboratory (NL)

Research Benefits
Information Pending

ISS Expedition Duration
September 2017 - February 2018

Expeditions Assigned

Previous Missions
Information Pending

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Experiment Description

Research Overview

  • Cost-effective High E-Frequency Satellite (CHEFSat) tests CubeSat bus component technologies.
  • CHEFSat tests the suitability of using commercial off-the-shelf radio frequency (RF) component technologies for CubeSats.

Cost-effective High E-Frequency Satellite (CHEFSat) is a 3U+ (10cm3 = 1 Unit, or 1U) form factor CubeSat. It performs on-orbit operations to test the various commercial off-the-shelf technologies.

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Space Applications
CHEFSat serves space applications by preparing a low cost and readily available technology for mission use. CHEFSat also demonstrates how technology can be adapted and translated into viable space solutions. Linking consumer innovation with space exploration creates positive feedback loops for both endeavors.

Earth Applications
CHEFSat creates markets for Earth-based technologies and demonstrates high profile applications for technological advances. The giant leaps of space exploration depend heavily on smaller steps of innovation that proceed apace on Earth. Deployment in high profile space applications can create incentives for further innovation.

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Operational Requirements and Protocols
NanoRacks CubeSats are delivered to the ISS already integrated within a NanoRacks CubeSat Deployer (NRCSD) or NanoRacks DoubleWide Deployer (NRDD). A crew member transfers each NRCSD/NRDD from the launch vehicle to the Japanese Experiment Module (JEM). Visual inspection for damage to each NRCSD is performed. When CubeSat deployment operations begin, the NRCSD/NRDDs are unpacked, mounted on the JAXA Multi-Purpose Experiment Platform (MPEP) and placed on the JEM airlock slide table for transfer outside the ISS. A crew member operates the JEM Remote Manipulating System (JRMS) – to grapple and position for deployment. CubeSats are deployed when JAXA ground controllers command a specific NRCSD.

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Decadal Survey Recommendations

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Results/More Information

Information Pending

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Related Websites
U.S. Naval Research Laboratory

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