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Astrodynamics & Spacecraft Systems Engineering

During my two classes in Astrodynamics and Spacecraft Systems Engineering, I was fortunate to work on multiple projects utilizing trajectory planning using STK and designing spacecraft using fundamentals of systems engineering. In spacecraft systems engineering class, I led my team to design SEWED (Satellite for Early Warning, Exploration, and Defense), which are two spacecraft that will be parked at L4 and L5 of Mars to study the Trojan asteroids and be used as early planetary defense warning systems. We followed the systems engineering approach of devising systems requirements, mission statements, preliminary design reviews, and critical design reviews. In addition to spacecraft design class, I have worked on planetary trajectory projects utilizing STK and MATLAB for destinations ranging from LEO and Mars to Jupiter and its moon Ganymede. Please read below for more technical details. 

SEWED Concept of Operation (CONOPS)

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SEWED Spacecraft Design 

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Folding Solar Array
MR10J3 Thrusters
Sun Sheild 
15 cm IR Telescope
High Gain Antenna
LEROS 1C Main Engine

SEWED Propulsion Diagram 

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Helium Tank (~100L)
Hydrazine (110L)
MON (132L)
Hydrazine (100L)
S-405 (100L)
8X MR 103GJ
LEROS-1C Gimbaled

SEWED L4 & L5 Trajectory via STK

Additional Astrodynamics Projects

LANDSAT LEO Orbit Inclination 

Mars Mission Trajectory 

Jupiter & Ganymade Missions

© 2023 Zemichael Gebeyehu

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