HighVelocityMetric¶
- class rubin_sim.maf.metrics.HighVelocityMetric(psf_factor=2.0, snr_limit=None, velocity_col='velocity', **kwargs)¶
Bases:
BaseMoMetricCount number of times an SSobject appears trailed.
Count the number of times an asteroid is observed with a velocity high enough to make it appear trailed by a factor of (psf_factor)*PSF - i.e. velocity >= psf_factor * seeing / visitExpTime. Simply counts the total number of observations with high velocity.
Methods Summary
run(sso_obs, orb, hval)Calculate the metric value.
Methods Documentation
- run(sso_obs, orb, hval)¶
Calculate the metric value.
- Parameters:
- sso_obs: np.ndarray
The input data to the metric (same as the parent metric).
- orb: np.ndarray
The information about the orbit for which the metric is being calculated.
- hvalfloat
The H value for which the metric is being calculated.
- Returns:
- float or np.ndarray or dict