IERS_B

class astropy.utils.iers.IERS_B(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 B, provided by IERS itself.

These are final values; see https://www.iers.org/IERS/EN/Home/home_node.html

Notes

If the package IERS B file (`iers.IERS_B_FILE) is out of date, a new version can be downloaded from iers.IERS_B_URL.

Attributes Summary

iers_table

Methods Summary

dcip_source(self, i)	Set CIP correction source flag for entries in IERS table
pm_source(self, i)	Set PM source flag for entries in IERS table
read([file, readme, data_start])	Read IERS-B table from a eopc04_iau2000.* file provided by IERS.
ut1_utc_source(self, i)	Set UT1-UTC source flag for entries in IERS table

Attributes Documentation

iers_table = <IERS_B length=20405> year month day MJD PM_x ... e_UT1_UTC e_LOD e_dX_2000A e_dY_2000A d arcsec ... s s arcsec arcsec int64 int64 int64 float64 float64 ... float64 float64 float64 float64 ----- ----- ----- ------- --------- ... --------- -------- ---------- ---------- 1962 1 1 37665.0 -0.0127 ... 0.002 0.0014 0.004774 0.002 1962 1 2 37666.0 -0.0159 ... 0.002 0.0014 0.004774 0.002 1962 1 3 37667.0 -0.019 ... 0.002 0.0014 0.004774 0.002 1962 1 4 37668.0 -0.021999 ... 0.002 0.0014 0.004774 0.002 1962 1 5 37669.0 -0.024799 ... 0.002 0.0014 0.004774 0.002 1962 1 6 37670.0 -0.027599 ... 0.002 0.0014 0.004774 0.002 1962 1 7 37671.0 -0.030199 ... 0.002 0.0014 0.004774 0.002 1962 1 8 37672.0 -0.032798 ... 0.002 0.0014 0.004774 0.002 1962 1 9 37673.0 -0.035198 ... 0.002 0.0014 0.004774 0.002 ... ... ... ... ... ... ... ... ... ... 2017 11 3 58060.0 0.17817 ... 3.17e-05 1.29e-05 4.6e-05 4.2e-05 2017 11 4 58061.0 0.176815 ... 3.06e-05 1.29e-05 4.6e-05 4.2e-05 2017 11 5 58062.0 0.175231 ... 2.95e-05 1.3e-05 4.6e-05 4.3e-05 2017 11 6 58063.0 0.173459 ... 2.86e-05 1.3e-05 4.6e-05 4.3e-05 2017 11 7 58064.0 0.171803 ... 2.77e-05 1.3e-05 4.6e-05 4.3e-05 2017 11 8 58065.0 0.170591 ... 2.67e-05 1.31e-05 4.6e-05 4.3e-05 2017 11 9 58066.0 0.169119 ... 2.57e-05 1.31e-05 4.6e-05 4.3e-05 2017 11 10 58067.0 0.167648 ... 2.49e-05 1.32e-05 4.6e-05 4.3e-05 2017 11 11 58068.0 0.166396 ... 2.39e-05 1.32e-05 4.5e-05 4.3e-05 2017 11 12 58069.0 0.164923 ... 2.3e-05 1.33e-05 4.5e-05 4.3e-05

Methods Documentation

dcip_source(self, i)

Set CIP correction source flag for entries in IERS table

pm_source(self, i)

Set PM source flag for entries in IERS table

classmethod read(file=None, readme=None, data_start=14)

Read IERS-B table from a eopc04_iau2000.* file provided by IERS.

Parameters

filestr

full path to ascii file holding IERS-B data. Defaults to package version, iers.IERS_B_FILE.

readmestr

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

data_startint

starting row. Default is 14, appropriate for standard IERS files.

Returns

IERS_B class instance

ut1_utc_source(self, i)

Set UT1-UTC source flag for entries in IERS table