class rubin_sim.maf.metrics.CampaignLengthMetric(mjd_col='observationStartMJD', exp_time_col='visitExposureTime', min_exp_time=20, **kwargs)

Bases: BaseMetric

Calculate the number of seasons (roughly, years) a pointing is observed for. This corresponds to the ‘campaign length’ for lensed quasar time delays.

Methods Summary

run(data_slice, slice_point)

Calculate metric values.

Methods Documentation

run(data_slice, slice_point)

Calculate metric values.

data_slicenumpy.ndarray, (N,)

Values passed to metric by the slicer, which the metric will use to calculate metric values at each slice_point.

slice_pointdict or None

Dictionary of slice_point metadata passed to each metric. E.g. the ra/dec of the healpix pixel or opsim fieldId.

metricValue: int float or object

The metric value at each slice_point.