IERS_Auto¶
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class
astropy.utils.iers.
IERS_Auto
(data=None, masked=None, names=None, dtype=None, meta=None, copy=True, rows=None, copy_indices=True, **kwargs)[source] [edit on github]¶ Bases:
astropy.utils.iers.IERS_A
Provide most-recent IERS data and automatically handle downloading of updated values as necessary.
Attributes Summary
iers_table
Methods Summary
open
()If the configuration setting astropy.utils.iers.conf.auto_download
is set to True (default), then open a recent version of the IERS-A table with predictions for UT1-UTC and polar motion out to approximately one year from now.Attributes Documentation
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iers_table
= None¶
Methods Documentation
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classmethod
open
()[source] [edit on github]¶ If the configuration setting
astropy.utils.iers.conf.auto_download
is set to True (default), then open a recent version of the IERS-A table with predictions for UT1-UTC and polar motion out to approximately one year from now. If the available version of this file is older thanastropy.utils.iers.conf.auto_max_age
days old (or non-existent) then it will be downloaded over the network and cached.If the configuration setting
astropy.utils.iers.conf.auto_download
is set to False thenastropy.utils.iers.IERS()
is returned. This is normally the IERS-B table that is supplied with astropy.On the first call in a session, the table will be memoized (in the
iers_table
class attribute), and further calls toopen
will return this stored table.Returns: - `~astropy.table.QTable` instance with IERS (Earth rotation) data columns
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