Inquiry: Lacrosse and SDS

From: Jed Hopewell (jhopey99@hotmail.com)
Date: Fri Dec 05 2003 - 21:15:53 EST

  • Next message: Kevin Fetter: "Re: Inquiry: Lacrosse and SDS"

    Greetings,
    
    I am in the process of a project at college where I am simulating a 
    satellite system with STK software by AGI (www.stk.com), In my case the 
    Lacrosse system.  The three active birds were in the program's database and 
    I found that the ground station is in White Sands.  However I do not have a 
    complete set of orbital data on Lacrosse I other than apogee, perigee, and 
    inclination.  Can anyone provide a good set of elements for a typical Lax 1 
    orbit or its final orbit before decomission, or could I take this data from 
    the similar lacrosse 3?
    
    My other main question is the communication link system used to reach White 
    Sands.  I am assuming that a real time link was desired but perhaps not 
    necessary.  Was SDS used as the relay, and can any details or suggestions be 
    provided to some good ones to choose as my simulation relays, and any 
    orbital data on such satellites?
    
    I know the classified nature of this information makes this a difficult 
    request, but best guesses are worthy for this project.
    
    Of note:  I know that I can input satellite orbit data manually, but I dont 
    know of a way to read 2-line format into STK.  I may need the "Translated" 
    version of the 2-line format.
    
    Thanks in advance,
    
    Jared Hopewell
    Penn State University
    
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