Matlab code for satellite orbit determination

Updated 16 Mar For computation of orbital elements at the epoch, a large number of measurements including azimuth and elevation are gathered at tracking stations. Then, the state vector is propagated from epoch to the times of all measurements in an iterative procedure and the epoch's state vector is corrected at each stage.

Meysam Mahooti Retrieved April 18, The code is a good effort towards automation of orbit prediction however I cannot make it work for my particular problem. I am using the file "anglesdr. When I give it the particular inputs, it throws an error which is related to the generation of complex values in "doubler. I need help in this regard. Also there almost no documentation for clarification of variables and functions used in the code.

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Orbit Determination Toolbox (ODTBX)

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Satellite Trajectory MATLAB Program

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Orbit Determination Using Matlab

Orbit Determination Using Matlab. I am brand new to the physics forum community, so let me start off by saying hello to everyone. I am interested im coming up with a matlab code for orbit determination. I saw a thread recently discussing this type of topic but i think it was orbit determination using RA and Dec measurements only.

I was thinking more along the lines of using a given. This said, i am not too familiar with TLE's or how they are used. Any help would be appreciated as well as any example matlab codes as i am not greatly proficient with MATLAB or any other language for that matter. Thanks guys!! Jenab Science Advisor. Ok, so what are the measurements that i would need in order to predict an orbit? The end result for that would be a complete analysis of the orbit correct?

You would then know the inclination, the eccentricity, the RAAN, etc.?? If so, then maybe that is the route i should take. I am thinking of this more along the lines of a grad school type project and am really just trying to lay the groundwork for what would be involved. I would still love to see any matlab codes that anyone has just so i can get an idea of the logic behind it all.

Thanks again! Science Advisor. Gold Member. The downside is it's poorly edited IMHO and you'll have to hunt and peck through the entire book. Take a look through Jenab's hillbilly tutorials. He wrote up several examples for doing various problems in celestial mechanics. You should be able to withdraw some pseudocode from that. If you have a specific problem you're trying to work through in Matlab, I can go through my old orbital dynamics code and see if I can find what you're looking for.

The files much too long and open up potential for lurker cheating to simply post them all here. Welcome to the forums, BTW! Last edited: Aug 31, Ok, that actually helps out quite a bit.

The Thread about finding the orbit based on RA and Dec is for an object in a heliocentric orbit correct? What if i was just interested in orbits just around Earth? This would change things quite a bit right?You seem to have CSS turned off. Please don't fill out this field. ODTBX functions and utilities are combined in a flexible architecture that allows for modular development of navigation algorithms and simulations.

The core ODTBX functionality is realized through a set of estimation commands that incorporate Monte Carlo data simulation, linear covariance analysis, and measurement processing at a generic level. Please provide the ad click URL, if possible:. Help Create Join Login. Operations Management. IT Management. Project Management. Services Business VoIP. Resources Blog Articles Deals. Menu Help Create Join Login. Get project updates, sponsored content from our select partners, and more.

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ODTBX is an orbit determination analysis tool based on Matlab and Java that provides a flexible way to do early mission analysis, especially for formation flying and exploration systems. Matlab is the primary user interface, and is used for building up new navigation models.

Java is used as an engine for things that might be slow or inefficient in Matlab, like high-fidelity trajectory propagation, ephemeris lookups, precession, nutation, polar motion calculations, file parsing, etc.

The primary goal of the ODTBX project is to provide a much more flexible way to perform early mission analysis than is currently possible with existing tools. This requires minimizing changes to software every time a new mission proposal comes up, particularly one that implements new flight dynamics technologies.

This provides a user interface analogous to numerical differential equation solver. ODTBX will allow new navigation models to be built up from object-oriented class libraries. To perform a specific analysis, users assemble truth and design system models, eventually from object-oriented measurement and dynamics class libraries, which are then provided as inputs to the filter commands.

matlab code for satellite orbit determination

Use of class libraries will provide the ability to build up arbitrarily complex models through inheritance from simpler ones. Project Goals The primary goal of the ODTBX project is to provide a much more flexible way to perform early mission analysis than is currently possible with existing tools. Usability Goals To perform a specific analysis, users assemble truth and design system models, eventually from object-oriented measurement and dynamics class libraries, which are then provided as inputs to the filter commands.Updated 16 Mar For computation of orbital elements at the epoch, a large number of measurements including azimuth,elevation and range are gathered at tracking stations.

Then, the state vector is propagated from epoch to the times of all measurements in an iterative procedure and the epoch's state vector is corrected at each stage. Meysam Mahooti Retrieved April 18, It is interesting that Gauss first used his method of least squares for determining the orbit of Ceres.

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Initial orbit determination applying Least Squares method. Follow Download. Overview Functions. Cite As Meysam Mahooti Updated 24 Mar This system was designed to replace an existing worldwide network of ground stations that had supported all of NASA's manned flight missions and unmanned satellites in low-Earth orbits. The primary system design goal was to increase the amount of time that these spacecraft were in communication with the ground and improve the amount of data that could be transferred.

The TDRS is designed and built to be launched to and function in geosynchronous orbit, km above the surface of the Earth. Based on an appropriate set of measurements the orbital parameters of a single user spacecraft and up to two relay satellites can be adjusted simultaneously.

A single header line serves to label each column and is skipped upon reading. Following the epoch of the measurement the ground station and spacecraft identification numbers as well as the four-way relay range are given in each line. References: Montenbruck O. Vallado D. Department of Defense World Geodetic System Meysam Mahooti Retrieved April 18, Learn About Live Editor.

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Select the China site in Chinese or English for best site performance. Other MathWorks country sites are not optimized for visits from your location. Toggle Main Navigation. File Exchange. Search MathWorks. Open Mobile Search. Trial software. You are now following this Submission You will see updates in your activity feed You may receive emails, depending on your notification preferences. Relay Satellite Orbit Determination version 1. Follow Download. Overview Functions.

Cite As Meysam Mahooti Comments and Ratings 2. Michael Sampol Michael Sampol view profile. Updates 24 Mar 1. Tags Add Tags aerospace astrodynamics satellite. Discover Live Editor Create scripts with code, output, and formatted text in a single executable document. Select a Web Site Choose a web site to get translated content where available and see local events and offers. Select web site.Updated 28 Mar Montenbruck, E.

Montenbruck, T. Shampine, Rebecca Chan Allen, S.

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Shampine, M. Seeber, "Satellite Geodesy", 2nd completely revised and extended edition June 19, Long, J. Cappellari, C. Velez, A.

matlab code for satellite orbit determination

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matlab code for satellite orbit determination

You are now following this Submission You will see updates in your activity feed You may receive emails, depending on your notification preferences. Satellite Orbits: Models, Methods and Applications version 2. Satellite Orbits: Models, Methods and Applications. Follow Download. Overview Functions.

Cite As Meysam Mahooti Comments and Ratings Qian Ma Qian Ma view profile.

matlab code for satellite orbit determination

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