/* -------------------------------------------------------------------------- */
/*             - Protocol header for LX200 telescope control -                */
/* -------------------------------------------------------------------------- */
/*                                                                            */
/* Copyright 2004-2012 John Kielkopf                                          */
/* kielkopf@louisville.edu                                                    */
/*                                                                            */
/* Distributed under the terms of the General Public License (see LICENSE)    */
/*                                                                            */
/* Date: July 1, 2012                                                         */
/* Version: 6.0                                                               */

/* The difference between terrestrial and ephemeris time is determined */
/*   by the accumulated number of leapseconds at this moment.          */

/* Updated for July 1, 2012 from 34.0 */

#define LEAPSECONDS    35.0

/* Important physical constants */

#define PI             3.14159265358

/* The following parameters are used internally to set speed and direction. */
/* Do not change these values. */

/* Slew speed */

#define	GUIDE		1
#define	CENTER		2
#define	FIND		4
#define	SLEW		8
 
/* Slew directions */

#define	NORTH		1
#define	SOUTH		2
#define	EAST		4
#define	WEST		8

/* Focus commands                                                            */
/* Distance from the CCD to the focal plane                                  */
/* Direction is + from the CCD toward the sky                                */
/* Used by Focus(focuscmd, focusspd)                                         */

#define FOCUSSPD4       8   /* Fast    */
#define FOCUSSPD3       4   /* Medium  */
#define FOCUSSPD2       2   /* Slow    */
#define FOCUSSPD1       1   /* Precise */

#define FOCUSCMDOUT     2   /* CCD moves away from sky */
#define FOCUSCMDIN      1   /* CCD moves toward the  sky */
#define FOCUSCMDOFF     0   /* CCD does not move */

/* Rotator commands */

#define ROTATESPDFAST       4   /* Fast set */
#define ROTATESPDSLOW       2   /* Slow set */
#define ROTATESPDSIDEREAL   1   /* Sidereal rate */
#define ROTATECMDCW         2   /* Camera rotates CW looking toward the sky */
#define ROTATECMDCCW        1   /* Camera rotates CCW looking toward the sky */
#define ROTATECMDOFF        0   /* Camera does not rotate */

/* Fan commands */

#define FANCMDHIGH      2   /* cooling fan on high speed */
#define FANCMDLOW       1   /* cooling fan on low speed */
#define FANCMDOFF       0   /* cooling fan off */

/* Dew heater commands */

#define HEATERCMDHIGH      2   /* dew heater on high */
#define HEATERCMDLOW       1   /* dew heater on low */
#define HEATERCMDOFF       0   /* dew heater off */

/* Pointing models (bit mapped and additive) */

#define RAW       0      /* Unnmodified but assumed zero corrected */
#define OFFSET    1      /* Correct for target offset*/
#define REFRACT   2      /* Correct for atmospheric refraction */
#define POLAR     4      /* Correct for polar axis misalignment */ 
#define DYNAMIC   8      /* Correct for errors in real time */

/* Display epochs (selected with GUI button) */

#define J2000    0      /* Epoch 2000.0 as entered or precessed without pm */
#define EOD      1      /* Epoch of date with pm if available  (default) */

/* Mounts */

#define ALTAZ  0        /* Alt-azimuth mount with at least 2-axis tracking */ 
#define EQFORK 1        /* Equatorial fork */
#define GEM    2        /* German equatorial */