IERS_A

class astropy.utils.iers.IERS_A(data=None, masked=False, names=None, dtype=None, meta=None, copy=True, rows=None, copy_indices=True, **kwargs)

Bases: astropy.utils.iers.IERS

IERS Table class targeted to IERS A, provided by USNO.

These include rapid turnaround and predicted times. See http://maia.usno.navy.mil/

Notes

The IERS A file is not part of astropy. It can be downloaded from iers.IERS_A_URL or iers.IERS_A_URL_MIRROR. See iers.__doc__ for instructions on use in Time, etc.

Attributes Summary

iers_table

Methods Summary

dcip_source(i)	Set CIP correction source flag for entries in IERS table
pm_source(i)	Set polar motion source flag for entries in IERS table
read([file, readme])	Read IERS-A table from a finals2000a.* file provided by USNO.
ut1_utc_source(i)	Set UT1-UTC source flag for entries in IERS table

Attributes Documentation

iers_table = None

Methods Documentation

dcip_source(i)

Set CIP correction source flag for entries in IERS table

pm_source(i)

Set polar motion source flag for entries in IERS table

classmethod read(file=None, readme=None)

Read IERS-A table from a finals2000a.* file provided by USNO.

Parameters:

file : str

full path to ascii file holding IERS-A data. Defaults to iers.IERS_A_FILE.

readme : str

full path to ascii file holding CDS-style readme. Defaults to package version, iers.IERS_A_README.

Returns:

``IERS_A`` class instance

ut1_utc_source(i)

Set UT1-UTC source flag for entries in IERS table