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Astrodynamics Commons

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Articles 331 - 343 of 343

Full-Text Articles in Astrodynamics

Model Curricula: Umea University, Carol Norberg Apr 2021

Model Curricula: Umea University, Carol Norberg

Online Journal of Space Communication

The town of Kiruna, lying 140 kilometres above the Arctic Circle in northernSweden, has for many years been considered the ‘‘space centre’’ of Sweden.The high latitude makes Kiruna an attractive base for international spaceresearch. This paper describes the practical-oriented Space EngineeringProgram run in Kiruna by the University of Umeå. The students on theprogram benefit from the expertise of resident and visiting space scientistsand engineers. The education is the only one of its kind in Sweden.


Model Curricula: Esa Telecom Training Programme Apr 2021

Model Curricula: Esa Telecom Training Programme

Online Journal of Space Communication

This paper describes the content of an e-training course on satellite communications prepared under contract to ESA and now available at the ESA Telecom User Support Office website. The contract to develop this online training was led by EADS Fleximage with significant contributions from a team of subcontractors including EADS Astrium, British Telecom Exact Technologies, ENSAE/ SUP'Aero and ISU. The course is divided into five modules covering the following areas in an animated and progressive way:

  • Systems and Services
  • Communication Link
  • Networking
  • Space Segment
  • Earth Segment


Model Curricula: International Space University Apr 2021

Model Curricula: International Space University

Online Journal of Space Communication

How to educate Space professionals able to meet the needs of the Space community and the challenges of a changing Space sector in a changing world? The International Space University (ISU) was created in 1987 to educate Space leaders using a unique approach. ISU programs are based on a "3-I" International, Interdisciplinary and Intercultural) model which was built from discussions and meetings within the world Space community to meet its evolving needs.


Model Curricula: Ohio University Apr 2021

Model Curricula: Ohio University

Online Journal of Space Communication

Programs of Education Relating to Satellite and Space Communication in:

Telecommunication Communications Systems Management

Electrical Engineering and Computer Science


Model Curricula: George Washington University Apr 2021

Model Curricula: George Washington University

Online Journal of Space Communication

There is a growing need for qualified engineers, scientists, technicians, marketing and sales and management personnel in the field of satellite applications and only a few universities that are actually offering undergraduate or graduate degrees in this area.


Model Curricula: Embry-Riddle Aeronautical University Apr 2021

Model Curricula: Embry-Riddle Aeronautical University

Online Journal of Space Communication

Many universities have added courses and curricula related to satellites and space. A search of the Internet reveals that few of these are designated degree programs in space studies degree, rather they are traditional programs offering courses and concentrations which involve study of space and space applications from several perspectives. The Internet search also reveals a large variation in both the titles and the curricula for these programs. The author has sought to standardize definitions, identify workable program names and suggest core courses. Five programs and their core courses are outlined for consideration.


Database Of Academic Institutions: International Apr 2021

Database Of Academic Institutions: International

Online Journal of Space Communication

Institutions, research centers and professional associations around the world that do research and teach content and skills relating to satellite and space communication.


Database Of Academic Institutions: United States K-12 Apr 2021

Database Of Academic Institutions: United States K-12

Online Journal of Space Communication

Institutions, research centers and professional associations in the United States that do research and teach content and skills relating to satellite and space communication at the K-12 level.


Small Unmanned Aircraft Systems Acoustic Analysis For Noninvasive Marine Mammal Response: An Exploratory Field Study, David Thirtyacre, Gennifer Brookshire, Sarah Callan, Brittany Arvizu, Patrick Sherman Jan 2021

Small Unmanned Aircraft Systems Acoustic Analysis For Noninvasive Marine Mammal Response: An Exploratory Field Study, David Thirtyacre, Gennifer Brookshire, Sarah Callan, Brittany Arvizu, Patrick Sherman

International Journal of Aviation, Aeronautics, and Aerospace

As in countless other fields of human endeavor, small unmanned aircraft systems (sUAS) have the potential to benefit pinniped (Pinnipedia; e.g., Phocidae [seals], Otariidae [sea lions], and Odobenidae [walruses]) response efforts. The employment of sUAS could give responders a close-up look at animals in distress in order to determine their condition as well as develop a response strategy. However, unlike other subjects that are regularly inspected by sUAS (e.g., croplands and civil infrastructure) pinnipeds may respond to the distinctive sound generated by small, multirotor sUAS. This reaction may include retreating into the water en masse, which could put …


Visualization And Machine Learning Techniques For Nasa’S Em-1 Big Data Problem, Antonio P. Garza Iii, Jose Quinonez, Misael Santana, Nibhrat Lohia May 2019

Visualization And Machine Learning Techniques For Nasa’S Em-1 Big Data Problem, Antonio P. Garza Iii, Jose Quinonez, Misael Santana, Nibhrat Lohia

SMU Data Science Review

In this paper, we help NASA solve three Exploration Mission-1 (EM-1) challenges: data storage, computation time, and visualization of complex data. NASA is studying one year of trajectory data to determine available launch opportunities (about 90TBs of data). We improve data storage by introducing a cloud-based solution that provides elasticity and server upgrades. This migration will save $120k in infrastructure costs every four years, and potentially avoid schedule slips. Additionally, it increases computational efficiency by 125%. We further enhance computation via machine learning techniques that use the classic orbital elements to predict valid trajectories. Our machine learning model decreases trajectory …


Computation Of Eclipse Time For Low-Earth Orbiting Small Satellites, Sumanth R M Jan 2019

Computation Of Eclipse Time For Low-Earth Orbiting Small Satellites, Sumanth R M

International Journal of Aviation, Aeronautics, and Aerospace

This paper addresses a method for computing eclipse and daylight time for satellites in LEO. Continuous health-monitoring of the satellite is required for the success the mission. For this, the satellites are primarily powered by solar energy but during the eclipse time, the satellite’s functioning is affected as it cannot generate power during this period and also, its temperature drops rapidly. To tackle these issues, computing eclipse time for satellites becomes essential so as to plan for sizing its secondary power source for continuous functioning. In this work, eclipse time is being computed and it is shown that eclipse time …


Effect Of Chemical Reactions On The Fluidic Thrust Vectoring Of An Axisymmetric Nozzle, Rachid Chouicha, Mohamed Sellam, Said Bergheul Jan 2019

Effect Of Chemical Reactions On The Fluidic Thrust Vectoring Of An Axisymmetric Nozzle, Rachid Chouicha, Mohamed Sellam, Said Bergheul

International Journal of Aviation, Aeronautics, and Aerospace

Abstract:

During the last years, several thrust control systems of aerospace rocket engines have been developed. The fluidic thrust vectoring is one of them; it is simple in design and offers a substantial gain in weight and in performance. Most of studies related to this device were carried out with cold gas. It’s quite legitimate to expect that the thermophysical properties of the gases may affect considerably the flow behavior. Besides, the effects of reacting gases at high temperatures, under their effects all flow parameters like to vary.

This study aims to develop a new methodology that allows studying and …


Space Operations In The Suborbital Space Flight Simulator And Mission Control Center: Lessons Learned With Xcor Lynx, Pedro Llanos, Christopher Nguyen, David Williams, Kim O. Chambers Ph.D., Erik Seedhouse, Robert Davidson Jan 2018

Space Operations In The Suborbital Space Flight Simulator And Mission Control Center: Lessons Learned With Xcor Lynx, Pedro Llanos, Christopher Nguyen, David Williams, Kim O. Chambers Ph.D., Erik Seedhouse, Robert Davidson

Journal of Aviation/Aerospace Education & Research

This study was conducted to better understand the performance of the XCOR Lynx vehicle. Because the Lynx development was halted, the best knowledge of vehicle dynamics can only be found through simulator flights. X-Plane 10 was chosen for its robust applications and accurate portrayal of dynamics on a vehicle in flight. The Suborbital Space Flight Simulator (SSFS) and Mission Control Center (MCC) were brought to the Applied Aviation Sciences department in fall 2015 at Embry-Riddle Aeronautical University, Daytona Beach campus. This academic and research tool is a department asset capable of providing multiple fields of data about suborbital simulated flights. …