Satellite Observers Workbench. NOT yet complete, just published for forum posters to \"cherry pick\" pieces of code as requiered as an example.
satapi/satapi.h
- Committer:
- AjK
- Date:
- 2010-10-11
- Revision:
- 0:0a841b89d614
File content as of revision 0:0a841b89d614:
/**************************************************************************** * Copyright 2010 Andy Kirkham, Stellar Technologies Ltd * * This file is part of the Satellite Observers Workbench (SOWB). * * SOWB is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * SOWB is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with SOWB. If not, see <http://www.gnu.org/licenses/>. * * $Id: main.cpp 5 2010-07-12 20:51:11Z ajk $ * ***************************************************************************/ #ifndef SATAPI_H #define SATAPI_H #include "gps.h" #include "sgp4sdp4.h" #define JD_SECOND (1. / 86400.) #define JD_MINUTE (JD_SECOND * 60.) #define JD_HOUR (JD_MINUTE * 60.) #define JD_DAY (JD_HOUR * 24.) typedef struct _altaz { double alt; double azm; } AltAz; typedef struct _radec { double ra; double dec; } RaDec; typedef struct _eci { double x; double y; double z; double xdot; double ydot; double zdot; double atTime; } Eci; typedef struct _sat_pos_data { /* Inputs. */ char elements[3][80]; GPS_TIME time; GPS_LOCATION_AVERAGE location; /* Semi-intermediates. Set to zero for JD_UTC - SAT EPOCH. If you want to know the satellite position say 5 seconds into the furture set this to 5.0 The "real" tsince is calculated by JD_UTC + (tsince * (1 / 86400.)) - JD_SAT_EPOCH */ double tsince; /* Intermediates. */ tle_t tle; /* Constructed from the elements arrays. */ geodetic_t observer; /* Derived from input observer's location. */ double jd_epoch; /* Computed from the TLE epoch time. */ double jd_utc; /* Computed from the GPS_TIME t */ double phase; vector_t vel; vector_t pos; vector_t obs_set; geodetic_t sat_geodetic; /* Outputs. */ double azimuth; double elevation; double range; double rangeRate; double height; double velocity; } SAT_POS_DATA; double satapi_aos(SAT_POS_DATA *q, bool goto_aos); int satallite_calculate(SAT_POS_DATA *q); SAT_POS_DATA * observer_now(SAT_POS_DATA *q); AltAz * radec2altaz(double siderealDegrees, GPS_LOCATION_AVERAGE *location, RaDec *radec, AltAz *altaz); RaDec * altaz2radec(double siderealDegrees, GPS_LOCATION_AVERAGE *location, AltAz *altaz, RaDec *radec); #endif