A5074076768- Ionosphere and magnetosphere dynamics
- Space Satellite Systems and Control
- Geophysics and Gravity Measurements
- Spacecraft Design and Technology
- Solar and Space Plasma Dynamics
- Astro and Planetary Science
- Infrared Target Detection Methodologies
- Space exploration and regulation
- GNSS positioning and interference
- Astronomy and Astrophysical Research
- Distributed and Parallel Computing Systems
- Atmospheric Ozone and Climate
- Target Tracking and Data Fusion in Sensor Networks
- Climate variability and models
- Spacecraft and Cryogenic Technologies
- Optical Polarization and Ellipsometry
- Calibration and Measurement Techniques
- Atmospheric and Environmental Gas Dynamics
- earthquake and tectonic studies
- Spaceflight effects on biology
- Astronomical Observations and Instrumentation
Space Environment Technologies (United States)
2023-2025
University of Colorado Boulder
2020-2023
University of Colorado System
2021
Abstract Anthropogenic greenhouse gas emissions significantly impact the middle and upper atmosphere. They cause cooling thermal shrinking affect atmospheric structure. Atmospheric contraction results in changes key features, such as stratopause height or peak ionospheric electron density, also reduced thermosphere density. These can impact, among others, lifespan of objects low Earth orbit, refraction radio communication GPS signals, altitudes meteoroids entering Earth's Given this, there...
Abstract Geomagnetic storms release large amounts of energy on Earth's upper atmosphere at high latitudes that result in the heating and upward expansion neutral gas. During geomagnetic driven by interplanetary coronal mass ejections (ICMEs), density cooling times are shorter for stronger longer weaker storms. The start time influx into allows enhanced production nitric oxide (NO) latitudes, which turn cools thermosphere radiating away excess energy. As a result, greater NO results quicker...
Abstract Satellite‐atmosphere interactions cause large uncertainties in low‐Earth orbit determination and prediction. Thus, knowledge of the ability to predict space environment, most notably thermospheric mass density, are essential for operating satellites this domain. Recent progress has been made toward supplanting existing empirical, operational methods with physics‐based data‐assimilative models by accounting complex relationship between external drivers such as solar irradiance,...
Abstract In Low Earth Orbit (LEO), atmospheric drag is the largest contributor to trajectory prediction error. The current thermospheric density model used in operations, High Accuracy Satellite Drag Model (HASDM), applies corrections an empirical every 3 hr using observations of 75+ calibration satellites. This work aims improve global estimation by utilizing a physics‐based space environment and precise GPS‐based orbit estimates LEO CubeSats. data assimilation approach presented here...
With more commercial constellations planned, the number of Low Earth Orbit (LEO) objects is set to TRIPLE in two years. The growth LEO directly increases probability unintentional collisions between due accumulating space debris. Effective traffic management needs accurate knowledge variability upper atmosphere densities. Data assimilative modeling, where physics-based models are informed by measurements, supplies best capability today for specifying and predicting weather. foundation this...
Whitepaper #390 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: space weather applications. Additional ground-based missions/projects; space-based missions/projects.
Earth and Space Science Open Archive This preprint has been submitted to is under consideration at Weather. ESSOAr a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing the latest version by default [v2]Toward Accurate Physics-Based Specifications of Neutral Density using GNSS-Enabled Small SatellitesAuthorsEric K.SuttoniDJeffrey P.ThayerMarcin D.PilinskiiDShaylah M.MutschlerThomas...
Earth and Space Science Open Archive This preprint has been submitted to is under consideration at Weather. ESSOAr a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing an older version [v1]Go new versionToward Improved Physics-Based Simulations of the LEO Environment using GNSS-Enabled Small SatellitesAuthorsEric KSuttoniDJeffrey P.ThayerMarcin DominikPilinskiiDShaylah MMutschlerThomasBergerVu...