Kstars

satellite.h
1/*
2 SPDX-FileCopyrightText: 2009 Jerome SONRIER <jsid@emor3j.fr.eu.org>
3
4 SPDX-License-Identifier: GPL-2.0-or-later
5*/
6
7#pragma once
8
9#include "skyobject.h"
10
11#include <QString>
12
13class KSPopupMenu;
14
15/**
16 * @class Satellite
17 * Represents an artificial satellites.
18 *
19 * @author Jérôme SONRIER
20 * @version 0.1
21 */
22class Satellite : public SkyObject
23{
24 public:
25 /** @short Constructor */
26 Satellite(const QString &name, const QString &line1, const QString &line2);
27
28 /**
29 * @return a clone of this object
30 * @note See SkyObject::clone()
31 */
32 Satellite *clone() const override;
33
34 /** @short Destructor */
35 virtual ~Satellite() override = default;
36
37 /** @short Update satellite position */
38 int updatePos();
39
40 /**
41 * @return True if the satellite is visible (above horizon, in the sunlight and sun at least 12° under horizon)
42 */
43 bool isVisible();
44
45 /** @return True if the satellite is selected */
46 bool selected();
47
48 /** @short Select or not the satellite */
49 void setSelected(bool selected);
50
51 /** @return Satellite velocity in km/s */
52 double velocity() const;
53
54 /** @return Satellite altitude in km */
55 double altitude() const;
56
57 /** @return Satellite range from observer in km */
58 double range() const;
59
60 /** @return Satellite international designator */
61 QString id() const;
62
63 /** @return Satellite TLE */
64 QString tle() const;
65
66 /**
67 * @brief sgp4ErrorString Get error string associated with sgp4 calculation failure
68 * @param code error code as returned from sgp4() function
69 * @return error string
70 */
71 QString sgp4ErrorString(int code);
72
73 void initPopupMenu(KSPopupMenu *pmenu) override;
74
75 private:
76 /** @short Compute non time dependent parameters */
77 void init();
78
79 /** @short Compute satellite position */
80 int sgp4(double tsince);
81
82 /** @return Arcsine of the argument */
83 double arcSin(double arg);
84
85 /**
86 * Provides the difference between UT (approximately the same as UTC)
87 * and ET (now referred to as TDT).
88 * This function is based on a least squares fit of data from 1950
89 * to 1991 and will need to be updated periodically.
90 */
91 double deltaET(double year);
92
93 /** @return arg1 mod arg2 */
94 double Modulus(double arg1, double arg2);
95
96 // TLE
97 /// Satellite Number
98 int m_number { 0 };
99 /// Security Classification
100 QChar m_class;
101 /// International Designator
102 QString m_id;
103 /// Complete TLE
104 QString m_tle;
105 /// Epoch Year
106 double m_epoch_year { 0 };
107 /// Epoch (Day of the year and fractional portion of the day)
108 double m_epoch { 0 };
109 /// First Time Derivative of the Mean Motion
110 double m_first_deriv { 0 };
111 /// Second Time Derivative of Mean Motion
112 double m_second_deriv { 0 };
113 /// BSTAR drag term (decimal point assumed)
114 double m_bstar { 0 };
115 /// Ephemeris type
116 int m_ephem_type { 0 };
117 /// Element number
118 int m_elem_number { 0 };
119 /// Inclination [Radians]
120 double m_inclination { 0 };
121 /// Right Ascension of the Ascending Node [Radians]
122 double m_ra { 0 };
123 /// Eccentricity
124 double m_eccentricity { 0 };
125 /// Argument of Perigee [Radians]
126 double m_arg_perigee { 0 };
127 /// Mean Anomaly [Radians]
128 double m_mean_anomaly { 0 };
129 /// Mean Motion [Radians per minutes]
130 double m_mean_motion { 0 };
131 /// Revolution number at epoch [Revs]
132 int m_nb_revolution { 0 };
133 /// TLE epoch converted to julian date
134 double m_tle_jd { 0 };
135
136 // Satellite
137 /// True if the satellite is visible
138 bool m_is_visible { false };
139 /// True if the satellite is in the shadow of the earth
140 bool m_is_eclipsed { false };
141 /// True if the satellite is selected
142 bool m_is_selected { false };
143 /// Satellite velocity in km/s
144 double m_velocity { 0 };
145 /// Satellite altitude in km
146 double m_altitude { 0 };
147 /// Satellite range from observer in km
148 double m_range { 0 };
149
150 // Near Earth
151 bool isimp { false };
152 double aycof { 0 }, con41 { 0 }, cc1 { 0 }, cc4 { 0 }, cc5 { 0 }, d2 { 0 }, d3 { 0 }, d4 { 0 };
153 double delmo { 0 }, eta { 0 }, argpdot { 0 }, omgcof { 0 }, sinmao { 0 }, t { 0 }, t2cof { 0 };
154 double t3cof { 0 }, t4cof { 0 }, t5cof { 0 }, x1mth2 { 0 }, x7thm1 { 0 }, mdot { 0 };
155 double nodedot { 0 }, xlcof { 0 }, xmcof { 0 }, nodecf { 0 };
156
157 // Deep Space
158 int irez { 0 };
159 double d2201 { 0 }, d2211 { 0 }, d3210 { 0 }, d3222 { 0 }, d4410 { 0 }, d4422 { 0 }, d5220 { 0 };
160 double d5232 { 0 }, d5421 { 0 }, d5433 { 0 }, dedt { 0 }, del1 { 0 }, del2 { 0 }, del3 { 0 };
161 double didt { 0 }, dmdt { 0 }, dnodt { 0 }, domdt { 0 }, e3 { 0 }, ee2 { 0 }, peo { 0 };
162 double pgho { 0 }, pho { 0 }, pinco { 0 }, plo { 0 }, se2 { 0 }, se3 { 0 }, sgh2 { 0 };
163 double sgh3 { 0 }, sgh4 { 0 }, sh2 { 0 }, sh3 { 0 }, si2 { 0 }, si3 { 0 }, sl2 { 0 }, sl3 { 0 };
164 double sl4 { 0 }, gsto { 0 }, xfact { 0 }, xgh2 { 0 }, xgh3 { 0 }, xgh4 { 0 }, xh2 { 0 };
165 double xh3 { 0 }, xi2 { 0 }, xi3 { 0 }, xl2 { 0 }, xl3 { 0 }, xl4 { 0 }, xlamo { 0 }, zmol { 0 };
166 double zmos { 0 }, atime { 0 }, xli { 0 }, xni { 0 };
167
168 char method;
169};
The KStars Popup Menu.
Definition kspopupmenu.h:35
Represents an artificial satellites.
Definition satellite.h:23
int updatePos()
Update satellite position.
void setSelected(bool selected)
Select or not the satellite.
virtual ~Satellite() override=default
Destructor.
double range() const
QString id() const
double altitude() const
QString sgp4ErrorString(int code)
sgp4ErrorString Get error string associated with sgp4 calculation failure
double velocity() const
void initPopupMenu(KSPopupMenu *pmenu) override
Initialize the popup menut.
QString tle() const
bool isVisible()
Satellite(const QString &name, const QString &line1, const QString &line2)
Constructor.
Definition satellite.cpp:48
bool selected()
Satellite * clone() const override
Definition satellite.cpp:96
Provides all necessary information about an object in the sky: its coordinates, name(s),...
Definition skyobject.h:42
virtual QString name(void) const
Definition skyobject.h:145
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