An observer location and motion, defined relative to the geocenter, such as for an Earth-orbit sattelite, or for a virtual observer located at the geocenter itself. More...

#include <supernovas.h>

Inheritance diagram for supernovas::GeocentricObserver:

Public Member Functions
	GeocentricObserver ()
	Instantiates a new observer located at the geocenter.
	GeocentricObserver (const Position &pos, const Velocity &vel)
	Instantiates a new observer located (and moving) relative to the geocenter.
const Observer *	copy () const override
	Returns a pointer to a newly allocated copy of this geocentric observer instance.
Position	geocentric_position () const
	Returns the momentary geocentric position of this observer.
Velocity	geocentric_velocity () const
	Returns the momentary geocentric velocity of this observer.
bool	is_geocentric () const override
	Checks if this observer can be cast to a GeocentricObserver.
std::string	to_string () const override
	Returns a string representation of this geocentric observer.
Public Member Functions inherited from supernovas::Observer
virtual	~Observer ()
const observer *	_novas_observer () const
	Returns the underlying NOVAS C observer data structure.
Frame	frame_at (const Time &time, enum novas_accuracy accuracy=NOVAS_FULL_ACCURACY) const
	Returns an observing frame for this observer at the specified time and optionally with a specified accuracy.
virtual bool	is_geodetic () const
	Checks if this observer can be cast to a GeodeticObserver.
Frame	reduced_accuracy_frame_at (const Time &time) const
	Returns a reduced accuracy observing frame for this observer at the specified time.
enum novas_observer_place	type () const
	Returns the observer type.
Public Member Functions inherited from supernovas::Validating
bool	is_valid () const
	Returns the previously set 'valid' stae of the implementing instance.
	operator bool () const
	Objects that implement Validating can be used in conditionals directly, without explicitly calling is_valid().

Additional Inherited Members
Static Public Member Functions inherited from supernovas::Observer
static GeocentricObserver	at_geocenter ()
	Returns a fictitious observer placed at the location of the geocenter.
static SolarSystemObserver	at_ssb ()
	Returns a fictitious observer placed at the location of the Solar-System Barycenter (SSB).
static GeocentricObserver	in_earth_orbit (const Position &pos, const Velocity &vel)
	Returns a new observer orbiting the Earth.
static SolarSystemObserver	in_solar_system (const Position &pos, const Velocity &vel)
	Returns a new observer in some Solar-system location.
static GeodeticObserver	moving_on_earth (const Site &site, const EOP &eop, const ScalarVelocity &horizontal, const Angle &direction, const ScalarVelocity &vertical=ScalarVelocity::stationary())
	Instantiates a new observer that is moving relative to Earth's surface, such as an airborne observer.
static GeodeticObserver	moving_on_earth (const Site &site, const Velocity &itrs_vel, const EOP &eop)
	Returns a new observer that is moving, at some velocitym relative to Earth's surface, such as an airborne aircraft or balloon based observatory.
static GeodeticObserver	on_earth (const Site &site, const EOP &eop)
	Returns a new observer located at a fixed observing site.
static const Observer &	undefined ()
	Returns a reference to a statically defined standard invalid observer.
Protected Member Functions inherited from supernovas::Observer
	Observer (enum novas_observer_place type, const Site &site=Site::undefined(), const Position &pos=Position::origin(), const Velocity &vel=Velocity::stationary())
Protected Member Functions inherited from supernovas::Validating
	Validating ()
	dummy constructor;
Protected Attributes inherited from supernovas::Observer
observer	_observer = {}
	stored observer data
Protected Attributes inherited from supernovas::Validating
bool	_valid = false
	the state variable.

Detailed Description

An observer location and motion, defined relative to the geocenter, such as for an Earth-orbit sattelite, or for a virtual observer located at the geocenter itself.