py21cmsense.observatory.Observatory.projected_baselines

Observatory.projected_baselines(self, time_offset=0)[source]

The projected baseline lengths (in wavelengths) phased to a point that has rotated off zenith by some time_offset.

Parameters

time_offset (float or Quantity) – The amount of time elapsed since the phase center was at zenith. Assumed to be in days unless otherwise defined. May be negative.

Returns

  • An array the same shape as baselines_metres, but phased to the

  • new phase centre.