Document Type

Presentation

Journal/Book Title/Conference

2025 NASA HELIOTECH & Suborbital Symposium

Publisher

Utah State University Space Dynamics Laboratory

Publication Date

2025

First Page

1

Last Page

14

Abstract

Introduction

• An advanced Doppler Wind and Temperature Sounder (DWTS) is being developed for flight on NASA’s Dynamical Neutral Atmosphere-Ionosphere Coupling (DYNAMIC) satellite

– Will provide the first comprehensive global dataset of winds and temperature in the mesosphere and thermosphere (40–250 km altitude)

– Designed and built by Space Dynamics Lab (SDL)

• The DYNAMIC mission aims to characterize the energy transfer between the ionosphere, thermosphere, and mesosphere

– Led by Scott Bailey from Virginia Polytechnic Institute and Sate University

– See his HELIOTECH DYNAMIC poster for more details

• DWTS observes the Doppler shift of atmospheric NO and 13CO2 emission lines using gas filter correlation radiometry with an onboard gas cell cooled to near cryogenic temperatures

• This presentation introduces the DWTS science capabilities, provides an overview of the instrument design and performance, and summarizes recent prototype testing

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