prose.Observation.compute_bjd#
- Observation.compute_bjd(version='prose')#
Compute BJD_tdb based on current time
Once this is done self.time is BJD tdb and time format can be checked in self.time_format. Note that half the exposure time is added to the JD times before conversion. The precision of the returned time is not guaranteed, especially with “prose” method (~30ms). “eastman” option accuracy is 20ms. See http://astroutils.astronomy.ohio-state.edu/time/utc2bjd.html for more details.
- Parameters:
version (str, optiona) –
“prose”: uses an astropy method
”eastman”: uses the web applet http://astroutils.astronomy.ohio-state.edu (Eastman et al. 2010) [requires
an internet connection] by default “prose”