Earth orientation and space weather

Earth orientation and space weather#

era([time_expr, eop_data])

Earth rotation angle.

erap([time_expr, eop_data])

Derivative of the Earth rotation angle.

pm_x([time_expr, eop_data])

Polar motion (x component).

pm_xp([time_expr, eop_data])

Derivative of the polar motion (x component).

pm_y([time_expr, eop_data])

Polar motion (y component).

pm_yp([time_expr, eop_data])

Derivative of the polar motion (y component).

dX([time_expr, eop_data])

Correction to the Earth's precession/nutation model (x component).

dXp([time_expr, eop_data])

Derivative of the correction to the Earth's precession/nutation model (x component).

dY([time_expr, eop_data])

Correction to the Earth's precession/nutation model (y component).

dYp([time_expr, eop_data])

Derivative of the correction to the Earth's precession/nutation model (y component).

Ap_avg([time_expr, sw_data])

Average of the geomagnetic Ap indices.

f107([time_expr, sw_data])

Observed 10.7-cm solar radio flux.

f107a_center81([time_expr, sw_data])

Average of the 10.7-cm solar radio flux.