imap_processing.swe.utils.swe_utils.combine_acquisition_time

imap_processing.swe.utils.swe_utils.combine_acquisition_time(acq_start_coarse: ndarray, acq_start_fine: ndarray) → ndarray[tuple[int, ...], dtype[_ScalarType_co]]

Combine acquisition time of each quarter cycle measurement.

Each quarter cycle data should have same acquisition start time coarse and fine value. We will use that as base time to calculate each acquisition time for each count data. base_quarter_cycle_acq_time = acq_start_coarse + | acq_start_fine / 1000000

Parameters:

• acq_start_coarse (np.ndarray) – Acq start coarse. It is in seconds.

• acq_start_fine (np.ndarray) – Acq start fine. It is in microseconds.

Returns:

Acquisition time in seconds.

Return type:

np.ndarray