The benefits of very low earth orbit for earth observation missions
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 that …
altitude, have the potential to provide significant benefits to spacecraft over those that …
Comprehensive survey and assessment of spacecraft relative motion dynamics models
IN THE framework of spacecraft relative motion, current dynamics models are diverse and
often subject to a multitude of constraints and limitations on the intersatellite range of …
often subject to a multitude of constraints and limitations on the intersatellite range of …
System modelling of very low Earth orbit satellites for Earth observation
The operation of satellites in very low Earth orbit (VLEO) has been linked to a variety of
benefits to both the spacecraft platform and mission design. Critically, for Earth observation …
benefits to both the spacecraft platform and mission design. Critically, for Earth observation …
A review of gas-surface interaction models for orbital aerodynamics applications
Abstract Renewed interest in Very Low Earth Orbits (VLEO)-ie altitudes below 450 km-has
led to an increased demand for accurate environment characterisation and aerodynamic …
led to an increased demand for accurate environment characterisation and aerodynamic …
Safety control for spacecraft autonomous rendezvous and docking under motion constraints
This paper addresses the translational control problem for the final phase of spacecraft
rendezvous and docking. For safety concerns, during the approach process, the pursuer …
rendezvous and docking. For safety concerns, during the approach process, the pursuer …
Constellation phasing with differential drag on planet labs satellites
A methodology is presented for the differential drag control of a large fleet of propulsionless
satellites deployed in the same orbit. The controller places satellites into a constellation with …
satellites deployed in the same orbit. The controller places satellites into a constellation with …
Assessment of constellation designs for earth observation: Application to the TROPICS mission
The orbit and constellation design process for Earth observation missions is complex and it
involves trades between mission lifetime, instrument performance, coverage, cost, and …
involves trades between mission lifetime, instrument performance, coverage, cost, and …
[PDF][PDF] Very low earth orbit mission concepts for earth observation: Benefits and challenges
ABSTRACT Very Low Earth Orbits (VLEO) can be defined as the orbits with a mean altitude
below 450 km. Operating in these orbits can provide a number of benefits to Earth …
below 450 km. Operating in these orbits can provide a number of benefits to Earth …
Model of perturbed satellite relative motion with time-varying differential drag
This work revisits the modeling of the relative motion between satellites flying in near-
circular low-Earth-orbits. The motion is described through relative orbital elements and both …
circular low-Earth-orbits. The motion is described through relative orbital elements and both …
Drag deorbit device: A new standard reentry actuator for CubeSats
D Guglielmo, S Omar, R Bevilacqua… - Journal of Spacecraft …, 2019 - arc.aiaa.org
The increasing number of CubeSats being launched has raised concerns about orbital
debris because most of these satellites have no means of active orbit control. Some …
debris because most of these satellites have no means of active orbit control. Some …