253 citations · 502 across the 5 of their papers we have counts for
6 papers
Uncertainties and Design of Active Aerodynamic Attitude Control in Very Low Earth Orbit
Sabrina Livadiotti, Nicholas H. Crisp, Peter C. E. Roberts +4
This paper discusses the design and the performance achievable with active aerodynamic attitude control in very low Earth orbit, i.e. below 450 km in altitude. A novel real-time al…
Intake Design for an Atmosphere-Breathing Electric Propulsion System (ABEP)
F. Romano, J. Espinosa-Orozco, M. Pfeiffer +29
Challenging space missions include those at very low altitudes, where the atmosphere is source of aerodynamic drag on the spacecraft. To extend the lifetime of such missions, an ef…
In-Orbit Aerodynamic Coefficient Measurements using SOAR (Satellite for Orbital Aerodynamics Research)
N. H. Crisp, P. C. E. Roberts, S. Livadiotti +26
The Satellite for Orbital Aerodynamics Research (SOAR) is a CubeSat mission, due to be launched in 2021, to investigate the interaction between different materials and the atmosphe…
A Review of Gas-Surface Interaction Models for Orbital Aerodynamics Applications
Sabrina Livadiotti, Nicholas H. Crisp, Peter C. E. Roberts +29
Renewed interest in Very Low Earth Orbits (VLEO) - i.e. altitudes below 450 km - has led to an increased demand for accurate environment characterisation and aerodynamic force pred…
The Benefits of Very Low Earth Orbit for Earth Observation Missions
N. H. Crisp, P. C. E. Roberts, S. Livadiotti +30
Very low Earth orbits (VLEO), typically classified as orbits below approximately 450 km in altitude, have the potential to provide significant benefits to spacecraft over those tha…
A Semi-Analytical Method for Calculating Revisit Time for Satellite Constellations with Discontinuous Coverage
Nicholas H. Crisp, Sabrina Livadiotti, Peter C. E. Roberts
This paper presents a unique approach to the problem of calculating revisit time metrics for different satellite orbits, sensor geometries, and constellation configurations with ap…