WeakLensingNvisits¶
- class rubin_sim.maf.metrics.WeakLensingNvisits(m5_col='fiveSigmaDepth', exp_time_col='visitExposureTime', filter_col='filter', lsst_filter='i', depth_cut=24.5, ebvlim=0.2, min_exp_time=15, **kwargs)¶
Bases:
BaseMetric
A proxy metric for WL systematics. Higher values indicate better systematics mitigation.
Weak Lensing systematics metric : Computes the average number of visits per point on a HEALPix grid after a maximum E(B-V) cut and a minimum co-added depth cut. Intended to be used to count visits in gri, but can be any filter combination as long as it includes
lsst_filter
band visits.Methods Summary
run
(data_slice, slice_point)Calculate metric values.
Methods Documentation
- run(data_slice, slice_point)¶
Calculate metric values.
- Parameters:
- data_slice
numpy.ndarray
, (N,) Values passed to metric by the slicer, which the metric will use to calculate metric values at each slice_point.
- slice_point
dict
or None Dictionary of slice_point metadata passed to each metric. E.g. the ra/dec of the healpix pixel or opsim fieldId.
- data_slice
- Returns: