lightkurve.utils.btjd_to_astropy_time(btjd, bjdref=2457000.0)

Converts TESS Barycentric Julian Day (BTJD) values to an astropy.time.Time object.

TESS Barycentric Julian Day (BTJD) is a Julian day minus 2457000.0 and corrected to the arrival times at the barycenter of the Solar System. BTJD is the format in which times are recorded in the TESS data products. The time is in the Barycentric Dynamical Time frame (TDB), which is a time system that is not affected by leap seconds.

btjdfloat or array of floats

Barycentric TESS Julian Day


BJD reference date.

timeastropy.time.Time object

Resulting time object.