TimeConstants.hpp

Go to the documentation of this file.

#pragma ident "$Id: TimeConstants.hpp 1162 2008-03-27 21:18:13Z snelsen $"



#ifndef GPSTK_TIMECONSTANTS_HPP
#define GPSTK_TIMECONSTANTS_HPP

//============================================================================
//
//  This file is part of GPSTk, the GPS Toolkit.
//
//  The GPSTk is free software; you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published
//  by the Free Software Foundation; either version 2.1 of the License, or
//  any later version.
//
//  The GPSTk 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 Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with GPSTk; if not, write to the Free Software Foundation,
//  Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//  
//  Copyright 2004, The University of Texas at Austin
//
//============================================================================

namespace gpstk
{
   const double MJD_TO_JD = 2400000.5;
   const long MJD_JDAY = 2400001L;
   const long GPS_EPOCH_JDAY = 2444245L;
   const long GPS_EPOCH_MJD = 44244L;
   const long UNIX_MJD = 40587L;

   const long HALFWEEK = 302400L;
   const long FULLWEEK = 604800L;

   const long WEEK_PER_EPOCH = 1024L;

   const long SEC_PER_DAY = 86400L;
   const double DAY_PER_SEC = 1.0/SEC_PER_DAY;

   const long MS_PER_SEC = 1000L;
   const double SEC_PER_MS = 1.0/MS_PER_SEC;
   
   const long MS_PER_DAY = MS_PER_SEC * SEC_PER_DAY;
   const double DAY_PER_MS = 1.0/MS_PER_DAY;

   const long ZCOUNT_PER_DAY = 57600L;
   const double DAY_PER_ZCOUNT = 1.0/ZCOUNT_PER_DAY;

   const long ZCOUNT_PER_WEEK = 403200L;
   const double WEEK_PER_ZCOUNT = 1.0/ZCOUNT_PER_WEEK;

} // namespace

#endif // GPSTK_TIMECONSTANTS_HPP

---