Explanipedia

The space environment particle density in Low Earth Orbit based on two decades of in-situ observation Open

Soumaya Azzi, Xanthi Oikonomidou, Stijn Lemmens · 2024

Currently the only method to establish the prevalence of particles, space debris or meteoroids, sized between 1 micrometre and a few centimetres, in Earth orbit is by instruments or witness plates dedicated to in-situ detection. Derived us…

Density-based evolutionary model of the space debris environment in low-Earth orbit Open

Lorenzo Giudici, Camilla Colombo, André Horstmann, Francesca Letizia, Stijn Lemmens · 2024

Analysis of accidental spacecraft break-up events in cislunar space Open

Paolo Guardabasso, Despoina K. Skoulidou, Lorenzo Bucci, Francesca Letizia, Stijn Lemmens , et al. · 2023

Medium-term Predictions of F10.7 and F30 cm Solar Radio Flux with the Adaptive Kalman Filter Open

Elena Petrova, Tatiana Podladchikova, Astrid Veronig, Stijn Lemmens, Benjamin Bastida Virgili , et al. · 2021

The solar radio flux at F10.7 and F30 cm is required by most models characterizing the state of the Earth’s upper atmosphere, such as the thermosphere and ionosphere, to specify satellite orbits, re-entry services, collision avoidance mane…

Design of a Software to Assess the Impact of a Space Mission on the Space Environment Open

Christian Colombo, Mirko Trisolini, Juan Luis Gonzalo, L Giudici, Sören Frey , et al. · 2021

Application of Density-Based Propagation to Fragment Clouds Using the Starling Suite Open

Stefan Frey, C. Colombo, Stijn Lemmens · 2019

Extension of the King-Hele orbit contraction method for accurate, semi-analytical propagation of non-circular orbits Open

Stefan Frey, Camilla Colombo, Stijn Lemmens · 2019

Interpolation and Integration of Phase Space Density for Estimation of Fragmentation Cloud Distribution Open

Stefan Frey, Camilla Colombo, Stijn Lemmens · 2019

To calculate the effects of on-orbit fragmentations on current or future space missions, accurate estimates of the fragment density and its time evolution are required. Current operational tools estimate the risks involved through represen…

Radar-based Re-Entry Predictions with very limited tracking\n capabilities: the GOCE case study Open

Stefano Cicalò, Stijn Lemmens · 2018

The problem of the re-entry predictions of GOCE has been deeply investigated\nin the literature, due to the large amount of data, mainly radar and GPS,\navailable until re-entry. The accurate GPS and attitude measurements are used\nto comp…

Radar-based Re-Entry Predictions with very limited tracking capabilities: the GOCE case study Open

Stefano Cicalò, Stijn Lemmens · 2018

The problem of the re-entry predictions of GOCE has been deeply investigated in the literature, due to the large amount of data, mainly radar and GPS, available until re-entry. The accurate GPS and attitude measurements are used to compute…

The observing campaign on the deep-space debris WT1190F as a test case for short-warning NEO impacts Open

M. Micheli, A. Buzzoni, D. Koschny, G. Drolshagen, E. Perozzi , et al. · 2017

Impact of End-of-Life manoeuvres on the collision risk in protected regions Open

Stefan Frey, Stijn Lemmens, Benjamin Bastida Virgili, Tim Flohrer, Volker Gass · 2017

Life Cycle Assessment Indicator for Space Debris Open

Camilla Colombo, Francesca Letizia, Mirko Trisolini, Hugh G. Lewis, Augustin Chanoine , et al. · 2017

In the framework of space debris remediation and mitigation and eco-design of space systems, a design indicator is proposed to measure the management of
end-of-life options and to compare different design options of a space mission fro…

Evolution of Fragmentation Cloud in Highly Eccentric Orbit Using Representative Objects Open

Stefan Frey, Camilla Colombo, Stijn Lemmens, H. Krag · 2017

Many historical on-orbit satellite fragmentations occurred in Highly Eccentric Orbits (HEOs) such as the Geostationary Transfer Orbit (GTO). Such fragmentations produce fragment clouds that interfere with the Low Earth Orbit (LEO) environm…

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