Bergmann, Kevin (2021) Re-Entry Analyses and Ground Footprint Determination of Generic Satellites using DRAMA and Python. Project Report. SART TN-003/2021. 51 S.
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Abstract
Within the scope of a contract for Bayern Chemie GmbH (BC), a study about the post mission disposal and re-entry of an arbitrary spacecraft (S/C) was performed. This study investigated, which velocity increments ΔV are required in order to de-orbit a generic S/C from a given initial orbit and to what extend the applied velocity increment influences the scatter of fragments of this S/C on Earth’s surface. Additionally, the influence of inaccuracies during the de-orbit burn (in ΔV, initial altitude and ignition time) and in modelling the break-up behavior of the S/C were investigated. The study aimed at developing a fundamental understanding on re-entry mechanics and on the size and shape of the resulting re-entry area(s) (REA). It was found, that higher ΔVs lead to a smaller REAs and thus compactify the ground footprint of a S/C, but also cause a higher number of fragments to impact on Earth’s surface (instead of dissipating sufficient energy to become uncritical). It was also recognized, that the higher the initial orbit of a S/C, the smaller its corresponding REA becomes – accommodated however by a larger number of fragments reaching Earth’s surface. Furthermore, a concluding Monte-Carlo analysis showed that high initial orbits are especially sensitive towards inaccuracies regarding the de-orbit maneuver.
Item URL in elib: | https://elib.dlr.de/144137/ | ||||||||
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Document Type: | Monograph (Project Report) | ||||||||
Additional Information: | Das PDF ist auf Anfrage bei RY-SRT erhältlich! | ||||||||
Title: | Re-Entry Analyses and Ground Footprint Determination of Generic Satellites using DRAMA and Python | ||||||||
Authors: |
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Date: | 15 March 2021 | ||||||||
Refereed publication: | No | ||||||||
Open Access: | No | ||||||||
Number of Pages: | 51 | ||||||||
Status: | Published | ||||||||
Keywords: | DRAMA, SARA, Python, Re-Entry, Re-Entry Area, Safety re-Entry Area, Casualty Area | ||||||||
Department: | RY-SRT | ||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||
HGF - Program: | Space | ||||||||
HGF - Program Themes: | Space Transportation | ||||||||
DLR - Research area: | Raumfahrt | ||||||||
DLR - Program: | R RP - Space Transportation | ||||||||
DLR - Research theme (Project): | R - Systems Analysis Space Transport (SART) | ||||||||
Location: | Bremen | ||||||||
Institutes and Institutions: | Institute of Space Systems > Space Launcher Systems Analysis | ||||||||
Deposited By: | Vormschlag, Nele Marei | ||||||||
Deposited On: | 30 Sep 2021 11:57 | ||||||||
Last Modified: | 30 Sep 2021 11:57 |
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