FarFieldSource

class pride.source.FarFieldSource(name: str, observed_right_ascension: float, observed_declination: float)

Base class for radio sources

static from_experiment(exp: pride.experiment.Experiment, name: str) → pride.source.core.Source

Abstractmethod:

spherical_coordinates(obs: pride.experiment.Observation) → tuple[numpy.ndarray, numpy.ndarray, numpy.ndarray, numpy.ndarray, astropy.time.Time | None]

Aberrated spherical coordinates of source at observation epochs

Calculates azimuth and elevation of source corrected for diurnal (motion of station due to Earth’s rotation) and annual (motion of station due to Earth’s orbit around the Sun) aberration. Under the assumption that the source remains static during the period of observation, the right ascension and declination are taken directly from the VEX file.

Source: Spherical Astrometry (сферическая астрометрия), Zharov (2006) - Eq 5.105 [Available online as of 01/2025]