Coverage for python/lsst/ts/dateloc/date_profile.py : 40%
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""" This class handles calculating the Modified Julian Date and the Local Sidereal Time for the internal timestamp and location coordinates. """
"""Initialize the class.
Parameters ---------- timestamp : float The UTC timestamp for a given date/time. location : lsst.ts.dateloc.ObservatoryLocation The location site information instance. """ self.location = location self.update(timestamp)
"""Modified Julian Date and Local Sidereal Time from instance.
Parameters ---------- timestamp : float The UTC timestamp to get the MJD and LST for.
Returns ------- (float, float) A tuple of the Modified Julian Date and Local Sidereal Time (radians). """ self.update(timestamp) return (self.mjd, self.lst_rad)
"""float: Return a timestamp from the datetime instance. """ return (dt - datetime(1970, 1, 1)).total_seconds()
def lst_rad(self): """float: Return the Local Sidereal Time (radians) for the internal timestamp. """ value = palpy.gmst(self.mjd) + self.location.longitude_rad if value < 0.: value += 2.0 * math.pi return value
def mjd(self): """float: Return the Modified Julian Date for the internal timestamp. """ mjd = palpy.caldj(self.current_dt.year, self.current_dt.month, self.current_dt.day) mjd += (self.current_dt.hour / 24.0) + (self.current_dt.minute / 1440.) + \ (self.current_dt.second / 86400.) return mjd
"""float: Return the UTC timestamp of midnight for the current date. """ midnight_dt = datetime(self.current_dt.year, self.current_dt.month, self.current_dt.day) return self.__get_timestamp(midnight_dt)
"""float: Return the UTC timestamp of midnight for the next day after current date. """ midnight_dt = datetime(self.current_dt.year, self.current_dt.month, self.current_dt.day) midnight_dt += timedelta(**{"days": 1}) return self.__get_timestamp(midnight_dt)
"""float: Return the UTC timestamp of midnight for the next day before current date. """ midnight_dt = datetime(self.current_dt.year, self.current_dt.month, self.current_dt.day) midnight_dt -= timedelta(**{"days": 1}) return self.__get_timestamp(midnight_dt)
"""Change the internal timestamp to requested one.
Parameters ---------- timestamp : float The UTC timestamp to update the internal timestamp to. """ self.timestamp = timestamp self.current_dt = datetime.utcfromtimestamp(self.timestamp) |