gaiadr_timespan

gaiadr_timespan#

pygaia.utils.gaiadr_timespan(release='dr4', epsl=True, absolute=True)#

Provides the observation time spans for Gaia data releases. These are based on the exact time boundaries in Gaia’s on board mission timeline (OBMT), see Gaia Collaboration (2016) for the details on OBMT.

The time spans can be used, for example, when simulating Gaia observation times with the Gaia Observation Forecast Tool.

Parameters:

  • release (str) – Data release. One of dr1, dr2, dr3, dr4, dr5.

  • epsl (boolean) – Include the Ecliptic Pole Scanning Law (EPSL) period (default True)

  • absolute (boolean) – Return absolute time as astropy.time.Time objects, if false return times as Julian days referred to J2010.0.

Returns:

start, end – Start and end times as astropy.time.Time instances, or in Julian days refered to J2010.0

Return type:

tuple

Notes

The end time for DR5 is an estimate. The definitive time will be know after the end of observations, which is planned for 2025-01-15.

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