Small Mirrors for Small Satellites: Design of the Deformable Mirror Demonstration Mission CubeSat (DeMi) Payload
Name
fspas-08-676281.pdf
Description
Published version
Size
2.4 MB
Format
Adobe PDF
Checksum (MD5)
983165327492ea2ab7b342b3db672c9d
Author(s)
Douglas, Ewan S
Allan, Greg
Morgan, Rachel
Holden, Bobby G
Gubner, Jennifer
Haughwout, Christian
do Vale Pereira, Paula
Xin, Yinzi
Merk, John
Cahoy, Kerri L
Date Issued
August 26, 2021
Journal
Frontiers in Astronomy and Space Sciences
Publisher
Frontiers Media SA
Citation
Douglas, Ewan S, Allan, Greg, Morgan, Rachel, Holden, Bobby G, Gubner, Jennifer et al. 2021. "Small Mirrors for Small Satellites: Design of the Deformable Mirror Demonstration Mission CubeSat (DeMi) Payload." Frontiers in Astronomy and Space Sciences, 8.
Version
Final published version
Abstract
The Deformable Mirror Demonstration Mission (DeMi) is a technology demonstration CubeSat to test a 140 actuator micro-electromechanical system (MEMS) deformable mirror in low-Earth orbit. Such mirrors can provide precise wavefront control with low size, weight, and power per actuator. Hence, they have the potential of improving contrast in coronagraphs on future space telescopes. In the DeMi payload, a Shack Hartmann lenslet array based wavefront sensor monitors the deformable mirror, illuminated by either an internal 636 nm laser diode or external starlight. This work describes the instrument design drivers and CubeSat implementation, and briefly illustrates operation on orbit by comparing ground-based measurements of a displaced actuator to an on-orbit measurement using the internal laser source. The 6U CubeSat was launched on February 25, 2020 and deployed from the International Space Station on July 13, 2020.
MIT Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.3389/fspas.2021.676281
