224 lines
6.3 KiB
Python
Executable File
224 lines
6.3 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf8 -*-
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from datetime import datetime
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import astropy.units as u
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from astropy.time.formats import erfa
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from astropy.time import Time
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from astropy.time import TimezoneInfo
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MJDREF = Time(51543.875, format='mjd') #corresponds to date 01.01.2000 00:00:00 (UTC+3)
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TZ_UTC = TimezoneInfo(utc_offset=0*u.hour) #UTC time zone
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TZ_MSK = TimezoneInfo(utc_offset=3*u.hour) #UTC+3 (Moscow) time zone
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class MissionTime(object):
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def __init__(self, missiontime):
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self._missiontime = missiontime
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def get(self):
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return self._missiontime
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def __str__(self):
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return str(self._missiontime)
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def to_datetime(self, tzone=TZ_UTC):
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days = self.to_mjd()
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return days.to_datetime(timezone=tzone)
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def to_artday(self):
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ARTDAYLEN = erfa.DAYSEC
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return self._missiontime / ARTDAYLEN
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def to_mjd(self):
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mjd_value = MJDREF.mjd + Time(self._missiontime / erfa.DAYSEC, format='mjd').mjd
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return Time(mjd_value, format='mjd')
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class ArtDay(object):
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def __init__(self, artday):
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self._artday = artday
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def get(self):
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return self._artday
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def __str__(self):
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return str(self._artday)
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def to_mission(self):
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ARTDAYLEN = erfa.DAYSEC
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return self._artday * ARTDAYLEN
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def to_datetime(self, tzone=TZ_UTC):
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days = self.to_mjd()
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return days.to_datetime(timezone=tzone)
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def to_mjd(self):
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mjd_value = MJDREF.mjd + Time(self._artday, format='mjd').mjd
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return Time(mjd_value, format='mjd')
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class MjdDay(object):
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def __init__(self, mjd):
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self._mjd = Time(mjd, format='mjd')
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def get(self):
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return self._mjd
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def __str__(self):
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return str(self._mjd)
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def to_mission(self):
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ARTDAYLEN = erfa.DAYSEC
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return (self._mjd.mjd - MJDREF.mjd) * ARTDAYLEN
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def to_artday(self):
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return self._mjd.mjd - MJDREF.mjd
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def to_datetime(self, tzone=TZ_UTC):
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return Time(self._mjd, format='mjd').to_datetime(timezone=tzone)
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class Dtime(object):
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def __init__(self, dtime, tzone=None):
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dtime = datetime.fromisoformat(dtime)
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if tzone is None:
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self._dtime = dtime
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else:
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self._dtime = dtime.replace(tzinfo=tzone)
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self._tzone = tzone
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def get(self):
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return self._dtime
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def __str__(self):
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return str(self._dtime)
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def to_mjd(self):
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days = Time(self._dtime)
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return days
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def to_artday(self):
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return self.to_mjd().mjd - MJDREF.mjd
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def to_mission(self):
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ARTDAYLEN = erfa.DAYSEC
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return self.to_artday() * ARTDAYLEN
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def to_msk(self):
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dtime_utc = Time(self._dtime)
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return dtime_utc.to_datetime(timezone=TZ_MSK)
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def to_utc(self):
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dtime_msk = Time(self._dtime)
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return dtime_msk.to_datetime(timezone=TZ_UTC)
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class ArtTime(object):
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def __init__(self, artday=None, missiontime=None, mjd=None, datetime_utc=None, datetime_msk=None):
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self._has_value = False
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self._try_aday(artday)
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self._try_mtime(missiontime)
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self._try_mjd(mjd)
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self._try_dtime_utc(datetime_utc)
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self._try_dtime_msk(datetime_msk)
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def _try_mtime(self, missiontime):
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if missiontime is None:
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return
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self._has_value = True
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self._missiontime = MissionTime(missiontime)
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self._artday = ArtDay(self._missiontime.to_artday())
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self._mjd = MjdDay(self._missiontime.to_mjd())
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self._datetime_utc = Dtime(dtime=str(self._missiontime.to_datetime(tzone=TZ_UTC)))
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self._datetime_msk = Dtime(dtime=str(self._missiontime.to_datetime(tzone=TZ_MSK)))
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def _try_aday(self, artday):
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if artday is None:
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return
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self._has_value = True
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self._artday = ArtDay(artday)
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self._missiontime = MissionTime(self._artday.to_mission())
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self._mjd = MjdDay(self._artday.to_mjd())
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self._datetime_utc = Dtime(dtime=str(self._artday.to_datetime(tzone=TZ_UTC)))
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self._datetime_msk = Dtime(dtime=str(self._artday.to_datetime(tzone=TZ_MSK)))
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def _try_mjd(self, mjd):
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if mjd is None:
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return
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self._has_value = True
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self._mjd = MjdDay(mjd)
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self._artday = ArtDay(self._mjd.to_artday())
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self._missiontime = MissionTime(self._mjd.to_mission())
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self._datetime_utc = Dtime(dtime=str(self._mjd.to_datetime(tzone=TZ_UTC)))
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self._datetime_msk = Dtime(dtime=str(self._mjd.to_datetime(tzone=TZ_MSK)))
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def _try_dtime_utc(self, datetime_utc):
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if datetime_utc is None:
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return
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self._has_value = True
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self._datetime_utc = Dtime(datetime_utc, tzone=TZ_UTC)
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self._datetime_msk = Dtime(str(self._datetime_utc.to_msk()))
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self._missiontime = MissionTime(self._datetime_utc.to_mission())
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self._artday = ArtDay(self._datetime_utc.to_artday())
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self._mjd = MjdDay(self._datetime_utc.to_mjd())
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def _try_dtime_msk(self, datetime_msk):
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if datetime_msk is None:
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return
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self._has_value = True
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self._datetime_msk = Dtime(datetime_msk, tzone=TZ_MSK)
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self._datetime_utc = Dtime(str(self._datetime_msk.to_utc()))
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self._missiontime = MissionTime(self._datetime_msk.to_mission())
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self._artday = ArtDay(self._datetime_msk.to_artday())
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self._mjd = MjdDay(self._datetime_msk.to_mjd())
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@property
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def missiontime(self):
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return self._missiontime
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@property
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def artday(self):
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return self._artday
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@property
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def mjd(self):
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return self._mjd
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@property
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def datetime_utc(self):
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return self._datetime_utc
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@property
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def datetime_msk(self):
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return self._datetime_msk
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def __str__(self):
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aday_str = 'Artday --> '+str(self._artday)+'\n'
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mtime_str = 'Mission time --> '+str(self._missiontime)+'\n'
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mjd_str = 'MJD --> '+str(self._mjd)+'\n'
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date_msk_str = 'Date MSK --> '+str(self._datetime_msk)+'\n'
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date_utc_str = 'Date UTC --> '+str(self._datetime_utc)+'\n'
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return str(aday_str+mtime_str+mjd_str+date_msk_str+date_utc_str)
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if __name__ == '__main__':
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pass |