Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Sara Spangelo"'
Publikováno v:
Journal of Spacecraft and Rockets. 53:836-846
The orbital maneuver capabilities of several CubeSat propulsion systems are analyzed using trajectory simulations. Properties of several types of developmental micropropulsion systems are reviewed, and ΔV capabilities are compared. Mission simulatio
Publikováno v:
Journal of Spacecraft and Rockets. 52:1651-1664
Recent technology advancements in microelectric propulsion will enable the next generation of small spacecraft to perform trajectory and attitude maneuvers with significant ΔV requirements, provide thrust over long mission durations, and replace rea
Autor:
Benjamin W. Longmier, Sara Spangelo
Publikováno v:
Journal of Spacecraft and Rockets. 52:1009-1020
Small spacecraft can now perform trajectory maneuvers resulting in significant orbit changes that were once only feasible with larger spacecraft due to the development of miniaturized propulsion technology. This paper addresses the feasibility of usi
Publikováno v:
Computers & Operations Research. 57:1-16
In this paper, we develop models and algorithms for solving the single-satellite, multi-ground station communication scheduling problem, with the objective of maximizing the total amount of data downloaded from space. With the growing number of small
Autor:
Sara Spangelo, Jessica A. Arlas, Daniel C. Meinzer, Andrew T. Klesh, James Cutler, Matthew Bennett
Publikováno v:
Acta Astronautica. 87:127-138
This paper presents the design and implementation of the Global Positioning System (GPS) subsystem for the Radio Aurora eXplorer (RAX) CubeSat. The GPS subsystem provides accurate temporal and spatial information necessary to satisfy the science obje
Autor:
Elmer G. Gilbert, Sara Spangelo
Publikováno v:
Journal of Aircraft. 50:232-238
This paper considers the optimization of flight trajectories for solar-powered aircraft. This work is unique relative to past work because flight path is constrained to repeatedly traverse a specified closed ground path. Constraints of this form are
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 48:2387-2404
This paper introduces models and tools to assess the communication capacity for highly dynamic and geographically diverse ground stations that loosely collaborate to provide increased satellite connectivity. Communication capacity is the total amount
This paper develops an observing strategy for space missions performing all-sky surveys, where a single spacecraft maps the celestial sphere subject to realistic constraints. The strategy is flexible, accommodates targeted observations of specific ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aefe5ab519dd026ec05b7fb14fe60ce1
https://resolver.caltech.edu/CaltechAUTHORS:20161018-105132302
https://resolver.caltech.edu/CaltechAUTHORS:20161018-105132302
Publikováno v:
2015 IEEE Aerospace Conference.
Recent technology advancements in Micro Electric Propulsion (MEP) will enable the next generation of small spacecraft to perform trajectory and attitude maneuvers with significant ΔV requirements, provide thrust over long mission durations, and repl
Autor:
Jessie Kawata, Travis Imken, Matthew Bennett, Robert C. Moeller, Pez Zarifian, Sara Spangelo, Farah Alibay, Steve Matousek, Leigh Rosenberg, Charles D. Norton, Raul Polit Casillas, Payam Banazadeh
Publikováno v:
2015 IEEE Aerospace Conference.
Recently there has been an increasing demand for a rapid mission concept generation capability for CubeSats, NanoSats, and SmallSats at JPL and in the broader community in the Concept Maturity Level (CML) 2–5 range. To help address these needs, JPL