LSST Applications g013ef56533+b8d55c8942,g083dd6704c+a047e97985,g199a45376c+0ba108daf9,g1fd858c14a+7a3b874d60,g210f2d0738+7416ca6900,g262e1987ae+1d557ba9a3,g29ae962dfc+519d34895e,g2cef7863aa+aef1011c0b,g30d7c61c20+36d16ea71a,g35bb328faa+8c5ae1fdc5,g3fd5ace14f+cb326ad149,g47891489e3+f459a6810c,g53246c7159+8c5ae1fdc5,g54cd7ddccb+890c8e1e5d,g5a60e81ecd+6240c63dbc,g64539dfbff+7416ca6900,g67b6fd64d1+f459a6810c,g6ebf1fc0d4+8c5ae1fdc5,g74acd417e5+0bae3c876a,g786e29fd12+668abc6043,g87389fa792+8856018cbb,g89139ef638+f459a6810c,g8d7436a09f+dee7680868,g8ea07a8fe4+81eaaadc04,g90f42f885a+34c0557caf,g97be763408+14b8164b5b,g98a1a72a9c+8389601a76,g98df359435+fff771c62d,gb8cb2b794d+6728931916,gbf99507273+8c5ae1fdc5,gc2a301910b+7416ca6900,gca7fc764a6+f459a6810c,gd7ef33dd92+f459a6810c,gdab6d2f7ff+0bae3c876a,ge410e46f29+f459a6810c,ge41e95a9f2+7416ca6900,geaed405ab2+e3b4b2a692,gf9a733ac38+8c5ae1fdc5,w.2025.43
LSST Data Management Base Package
Loading...
Searching...
No Matches
ProperMotion.h
Go to the documentation of this file.
1// -*- LSST-C++ -*-
2/*
3 * This file is part of jointcal.
4 *
5 * Developed for the LSST Data Management System.
6 * This product includes software developed by the LSST Project
7 * (https://www.lsst.org).
8 * See the COPYRIGHT file at the top-level directory of this distribution
9 * for details of code ownership.
10 *
11 * This program is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program. If not, see <https://www.gnu.org/licenses/>.
23 */
24
25#ifndef LSST_JOINTCAL_PROPER_MOTION_H
26#define LSST_JOINTCAL_PROPER_MOTION_H
27
28#include <cmath> // atan2
29#include <iostream>
30#include <memory>
31
32namespace lsst {
33namespace jointcal {
34
35class Point;
36
46public:
47 ProperMotion(double ra, double dec, double raErr, double decErr, double raDecCov = 0)
48 : _ra(ra), _dec(dec), _raErr(raErr), _decErr(decErr), _raDecCov(raDecCov) {
49 _offsetBearing = atan2(dec, ra);
50 };
51
52 ProperMotion(ProperMotion const &) = default;
54 ProperMotion &operator=(ProperMotion const &) = default;
56 ~ProperMotion() = default;
57
68 Point apply(const Point& star, double timeDeltaYears) const;
69
70 friend std::ostream &operator<<(std::ostream &stream, ProperMotion const &pm);
71
72private:
73 // Proper motion in ra and dec. Units are radians/year
74 double _ra, _dec;
75 double _raErr, _decErr, _raDecCov;
76
77 // Cache the bearing along-which to offset.
78 double _offsetBearing;
79};
80} // namespace jointcal
81} // namespace lsst
82
83#endif // LSST_JOINTCAL_PROPER_MOTION_H
T atan2(T... args)
A point in a plane.
Definition Point.h:37
ProperMotion & operator=(ProperMotion &&)=default
Point apply(const Point &star, double timeDeltaYears) const
Apply proper motion correction to the input star, returning a star with PM-corrected coordinates.
ProperMotion(double ra, double dec, double raErr, double decErr, double raDecCov=0)
ProperMotion & operator=(ProperMotion const &)=default
ProperMotion(ProperMotion &&)=default
friend std::ostream & operator<<(std::ostream &stream, ProperMotion const &pm)
ProperMotion(ProperMotion const &)=default
T dec(T... args)