Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Sun-synchronous Orbit"”.
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Sun-Synchronous Orbit Slot Architecture Analysis and Development
… for increased space traffic management. Due to orbital population density and likely future growth, the implementation of a slot architecture to Sun-synchronous orbit is considered in order to mitigate conjunctions among active satellites. This paper furthers work done in Sun-synchronous orbit …
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Characterization of the Effects of a Sun-Synchronous Orbit Slot Architecture on the Earth's Orbital Debris Environment
<p>Low Earth orbit represents a valuable limited natural resource. Of particular interest are sun-synchronous orbits; it is estimated that approximately 44% of low Earth satellites are sun-synchronous. A previously developed sun-synchronous orbit slot architecture is considered. An in-depth …
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Analysis of a CubeSat Orbit Using STK
This thesis presents an analysis of CubeSat orbits for both Low Earth Orbit (LEO) and Sun-Synchronous Orbit (SSO) missions using Systems Tool Kit (STK). The study focuses on analyzing communication, power generation, and radiation exposure while considering various factors. The analysis is based on …
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Design and thermal analysis for a novel EMCCD camera payload in a 1U CubeSat form factor
… (293.15K) to −85◦C (188.15K) and beyond given a Sun Synchronous orbit at 600km with attitude control and operational requirements. It was also shown to be capable of heating up, using resistive heaters on key components, beyond the thermal inertia of the system and environment, indicating viable …
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Planning and scheduling for earth-observing small satellite constellations
… system performance with a set of representative orbit geometries, ground station networks, and communications contexts. The fourth is the demonstration of routing of urgent observation data. The Global Planner algorithm demonstrates execution on larger problem sizes than the state-of-the-art, by …
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Understanding Uncertainties for Polar Mesospheric Cloud Retrievals and Initial Gravity Wave Observations in the Stratopause from the Cloud Imaging and Particle Size Instrument
… of 1 by 2 km in the nadir. The satellite is in a sun synchronous orbit with an approximately noon local time equator crossing. The observed albedo is due to Rayleigh scattered sun light from an altitude of approximately 50 km and sunlight scattered from Polar Mesospheric Clouds (PMC) which occur …
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Tropical oceanic mesoscale cold pools in observations and models
… in the second objective. Compared to ASCAT (sun-synchronous orbit), RapidScat was in a non-sun-synchronous orbit onboard the International Space Station (ISS) from 2014-2016 and thus was able to provide the diurnal cycle of ocean vector winds. Since the field of view and underlying …
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Formation of RAAN-Spread CubeSat Constellations Utilizing Onboard Low-Thrust Propulsion
… CubeSat constellation of satellites in the same orbital plane with varying right ascension of the ascending node (RAAN) will satisfy the internal wave gravity sampling requirements. Called a RAAN-spread constellation, the separation in argument of latitude of the clusters will allow for and the …
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Innovative Methods for LEO Particle Experiments]{Innovative Methods and Instrumentation for Low-Energy Particle Experiments in Low-Earth Orbit Space Mission Analysis and Hardware R&D across the NUSES, CSES-Limadou and SPaRKLE Projects
… an additional layer of complexity: the Low-Earth Orbit (LEO) environment subjects instruments to severe radiation loads, thermal cycling, launch mechanical stresses, and strict constraints on mass, power, and telemetry budget. These engineering boundaries do not merely limit the design space, they …