[HTML][HTML] Precise orbit determination of Spire nano satellites
Abstract Spire Global, Inc. operates a growing fleet of currently more than 100 CubeSats in
different low Earth orbits for commercial Earth observation. These satellites are equipped …
different low Earth orbits for commercial Earth observation. These satellites are equipped …
Time-variable gravity fields derived from GPS tracking of Swarm
Abstract Since 2002 Gravity Recovery and Climate Experiment (GRACE) provides monthly
gravity fields from K-band ranging (KBR) between two GRACE satellites. These KBR gravity …
gravity fields from K-band ranging (KBR) between two GRACE satellites. These KBR gravity …
Gravity field models from kinematic orbits of CHAMP, GRACE and GOCE satellites
The aim of our work is to generate Earth's gravity field models from GPS positions of low
Earth orbiters. Our inversion method is based on Newton's second law, which relates the …
Earth orbiters. Our inversion method is based on Newton's second law, which relates the …
Time-variable gravity field from the combination of HLSST and SLR
The Earth's time-variable gravity field is of great significance to study mass change within the
Earth's system. Since 2002, the NASA-DLR Gravity Recovery and Climate Experiment …
Earth's system. Since 2002, the NASA-DLR Gravity Recovery and Climate Experiment …
Greenland mass variation from time‐variable gravity in the absence of GRACE
O Baur - Geophysical research letters, 2013 - Wiley Online Library
In a recent paper, the authors succeeded in the inference of time‐variable gravity from orbit
analysis of the CHAMP satellite. The authors demonstrated the potential of the adopted …
analysis of the CHAMP satellite. The authors demonstrated the potential of the adopted …
Estimation and reduction of random noise in mass anomaly time-series from satellite gravity data by minimization of month-to-month year-to-year double differences
We propose a technique to regularize a GRACE-based mass-anomaly time-series in order
to (i) quantify the Standard Deviation (SD) of random noise in the data, and (ii) reduce the …
to (i) quantify the Standard Deviation (SD) of random noise in the data, and (ii) reduce the …
Improvement of Constellation Orbit Determination Through the Incorporation of Intersatellite Ranging
B Davis, BC Gunter - Journal of Guidance, Control, and Dynamics, 2022 - arc.aiaa.org
THE precise orbit determination (POD) of individual satellites has improved greatly over the
past decades with the regular inclusion of Global Navigation Satellite System (GNSS) …
past decades with the regular inclusion of Global Navigation Satellite System (GNSS) …
GEOScan: A global, real-time geoscience facility
GEOScan is a proposed space-based facility of globally networked instruments that will
provide revolutionary, massively dense global geosciences observations. Major scientific …
provide revolutionary, massively dense global geosciences observations. Major scientific …
Space-based distributed computing using a networked constellation of small satellites
BC Gunter, DC Maessen - Journal of Spacecraft and Rockets, 2013 - arc.aiaa.org
The goal of this study is to explore the feasibility of utilizing a network of orbiting satellites
working as a distributed-computing array. The satellites are presumed to be low-cost mini-or …
working as a distributed-computing array. The satellites are presumed to be low-cost mini-or …
Designing Satellite Constellations to Observe Earth's Time-Varying Gravity from Clock Frequency Comparisons
KA Lee, BC Gunter - Journal of Spacecraft and Rockets, 2023 - arc.aiaa.org
The nondominated sorting genetic algorithm III (NSGA-III) is used to design nonsymmetric
satellite constellations to observe large-scale high-frequency gravity variations that would …
satellite constellations to observe large-scale high-frequency gravity variations that would …