uvex_transients.surveys.base.SurveySchedule.compute_visit_times#

SurveySchedule.compute_visit_times(start_time: Time | None = None, end_time: Time | None = None, nside: int | None = None, order: str | None = None) → tuple[Quantity, ndarray][source]#

Compute observation times for each HEALPix pixel.

Parameters:

  • start_time (Time, optional) – Optional time range over which to compute visit times. If omitted, the full survey duration is used.

  • end_time (Time, optional) – Optional time range over which to compute visit times. If omitted, the full survey duration is used.

  • nside (int, optional) – HEALPix resolution parameter, or None to use config["healpix.default_nside"].

  • order (str, optional) – HEALPix ordering scheme, either "nested" or "ring", or None to use config["healpix.default_order"].

Returns:

  • visit_times (Quantity) – Flattened elapsed observation times, grouped by HEALPix pixel.

  • offsets (numpy.ndarray) – Integer offsets of shape (npix + 1,). Observation times for pixel i are given by visit_times[offsets[i]:offsets[i + 1]].