vetting

vetting contains simple, stand-alone Python tools for vetting transiting signals in NASA's Kepler, K2 and TESS data. vetting requires an installation of Python 3.8 or higher.

Installation

You can install vetting by executing the following in a terminal

pip install vetting

Centroid testing

An example of a simple test is shown below.

Here a significant offset is detected in the centroid of false positive KOI-608 during transit. The p-value for the points during transit being drawn from the same distribution as the points out of transit is low, (there is a less than 1% chance these are drawn from the same distribution). To recreate this example you can use the following script:

import lightkurve as lk
from vetting import centroid_test

tpf = lk.search_targetpixelfile('KOI-608', mission='Kepler', quarter=10).download()
period, t0, dur = 25.3368592, 192.91552, 8.85/24
r = centroid_test(tpf, period, t0, dur, aperture_mask='pipeline', plot=False)