sgp4io.h

NORAD公布的两行星历数据计算轨道参数模型

#ifndef _sgp4io_
#define _sgp4io_
/*     ----------------------------------------------------------------
*
*                                 sgp4io.h;
*
*    this file contains a function to read two line element sets. while 
*    not formerly part of the sgp4 mathematical theory, it is 
*    required for practical implemenation.
*
*                            companion code for
*               fundamentals of astrodynamics and applications
*                                    2007
*                              by david vallado
*
*       (w) 719-573-2600, email [e-mail]
*
*    current :
*              20 apr 07  david vallado
*                           misc updates for manual operation
*    changes :
*              14 aug 06  david vallado
*                           original baseline
*       ----------------------------------------------------------------      */

#include <stdio.h>
#include <math.h>

#include "sgp4ext.h"    // for several misc routines
#include "sgp4unit.h"   // for sgp4init and getgravconst

// ------------------------- function declarations -------------------------

void twoline2rv
     (
       char[130], char[130],
       char, char,
       gravconsttype,
       double&,
       double&,
       double&,
       elsetrec&
     );

#endif