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sdrangel/sdrbase/util/astronomy.h

100 lines
4.4 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2021, 2023 Jon Beniston, M7RCE <jon@beniston.com> //
// //
// This program 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 as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program 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 V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef INCLUDE_ASTRONOMY_H
#define INCLUDE_ASTRONOMY_H
#include "export.h"
#include <QDateTime>
// Right ascension and declination
struct SDRBASE_API RADec {
double ra;
double dec;
};
// Azimuth and Altitude
struct SDRBASE_API AzAlt {
double az;
double alt;
};
class SDRBASE_API Astronomy {
public:
static double julianDate(int year, int month, int day, int hours, int minutes, int seconds);
static double julianDate(QDateTime dt);
static double modifiedJulianDate(QDateTime dt);
static QDateTime julianDateToDateTime(double jd);
static double jd_j2000(void);
static double jd_b1950(void);
static double jd_now(void);
static RADec precess(RADec rd_in, double jd_from, double jd_to);
static AzAlt raDecToAzAlt(RADec rd, double latitude, double longitude, QDateTime dt, bool j2000=true);
static RADec azAltToRaDec(AzAlt aa, double latitude, double longitude, QDateTime dt);
static void azAltToXY85(AzAlt aa, double& x, double& y);
static void azAltToXY30(AzAlt aa, double& x, double& y);
static AzAlt xy85ToAzAlt(double x, double y);
static AzAlt xy30ToAzAlt(double x, double y);
static double localSiderealTime(QDateTime dateTime, double longitude);
static void sunPosition(AzAlt& aa, RADec& rd, double latitude, double longitude, QDateTime dt);
static double moonDays(QDateTime dt);
static void moonPosition(AzAlt& aa, RADec& rd, double latitude, double longitude, QDateTime dt);
static double refractionSaemundsson(double alt, double pressure, double temperature);
static double refractionPAL(double alt, double pressure, double temperature, double humidity, double frequency, double latitude, double heightAboveSeaLevel, double temperatureLapseRate);
static double raToDecimal(const QString& value);
static double decToDecimal(const QString& value);
static double lstAndRAToLongitude(double lst, double raHours);
static void equatorialToGalactic(double ra, double dec, double& l, double& b);
static void northGalacticPoleJ2000(double& ra, double& dec);
static void galacticToEquatorial(double l, double b, double& ra, double& dec);
static double dopplerToVelocity(double f, double f0);
static double velocityToDoppler(double v, double f0);
static double earthRotationVelocity(RADec rd, double latitude, double longitude, QDateTime dt);
static double earthOrbitVelocityBCRS(RADec rd, QDateTime dt);
static double sunVelocityLSRK(RADec rd);
static double observerVelocityLSRK(RADec rd, double latitude, double longitude, QDateTime dt);
static void sunrise(QDate date, double latitude, double longitude, QDateTime& rise, QDateTime& set);
static double noisePowerdBm(double temp, double bw);
static double noiseTemp(double dBm, double bw);
static double modulo(double a, double b);
static const double m_boltzmann;
static const double m_hydrogenLineFrequency;
static const double m_hydroxylLineFrequency;
static const double m_deuteriumLineFrequency;
static const double m_speedOfLight;
static const double m_hydrogenMass;
};
#endif // INCLUDE_ASTRONOMY_H