SLR.CS2

  • Reads monthly degree 2,m (figure axis and azimuthal dependence) spherical harmonic data files from satellite laser ranging (SLR)

    • CSR 2,1: C21_S21_RL06.txt

    • CSR 2,2: C22_S22_RL06.txt

    • GFZ: GRAVIS-2B_GFZOP_GRACE+SLR_LOW_DEGREES_0002.dat

    • GSFC: gsfc_slr_5x5c61s61.txt

Calling Sequence

import gravity_toolkit.SLR
SLR_CS2 = gravity_toolkit.SLR.CS2(SLR_file)

Source code

gravity_toolkit.SLR.CS2(SLR_file, ORDER=1, DATE=None, HEADER=True)[source]

Reads C2m and S2m spherical harmonic coefficients from SLR measurements

Parameters:
SLR_file: str

Satellite Laser Ranging file

ORDER: int, default 1

Spherical harmonic order to extract from low-degree fields

DATE: float or NoneType, default None

Mid-point of monthly solution for calculating 28-day arc averages

HEADER: bool, default True

File contains header text to be skipped

Returns:
C2m: float

SLR degree 2 order m cosine stokes coefficients

S2m: float

SLR degree 2 order m sine stokes coefficients

eC2m: float

SLR degree 2 order m cosine stokes coefficient error

eS2m: float

SLR degree 2 order m sine stokes coefficient error

month: int

GRACE/GRACE-FO month of measurement

time: float

date of SLR measurement