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sdrangel/sdrbase/util/astronomy.h
Jon Beniston cddc8c9b83 Star Tracker updates.
Plot Sun and Moon on sky temperature chart.
Plot markers on Galactic line-of-sight chart.
Create animations from Galactic line-of-sight chart.
Allow weather at antenna location to be downloaded from openweathermap.org
Allow target to be entered as Galactic longitude / latitude.
Add azimuth and elevation offsets to support scans around targets.
Add S7, S8 and S9 targets.
Refactor some code from GUI to main plugin, so computed values can be used in other plugins.
2021-10-12 11:07:56 +01:00

92 lines
4.0 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2021 Jon Beniston, M7RCE //
// //
// 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 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 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 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