CALWVR WVR calibration results

Name

Format

Units

Measure

Comments

Columns

Key

CAL_DATA_ID

Int Calibration data identifier

CAL_REDUCTION_ID

Int Calibration reduction identifier

ANTENNA_ID

Int Antenna identifier

SPECTRAL_WINDOW_ID

Int Spectral window identifier

Data description

NUM_POLY

Int Series order Npoly

Data

START_VALID_TIME

Double s EPOCH Start time of result validity period

END_VALID_TIME

Double s EPOCH End time of result validity period

FREQ_ORIGIN

Double Hz FREQUENCY Origin of frequency expansion

PATH_COEFF

Double Hz Polynomial Coefficients

WVR_METHOD

String m/K Method used: e.g. from a priori model, or empirical correction

Notes: This table contains the result of calibrating the WVR: the applicable coefficients for pathlength correction.
CAL_DATA_ID
Calibration data identifier
CAL_REDUCTION_ID
Calibration reduction identifier
ANTENNA_ID
Antenna identifier
NUM_POLY
Degree of polynomial used to describe the frequency dependence across the receiver band.
START_VALID_TIME
Start time of result validity period
END_VALID_TIME
End time of result validity period
FREQ_ORIGIN
Frequency origin for polynomial expansion
PATH_COEFF
These are the coefficients used to obtain the pathlength as a linear combinations of the data from the NfWVR channels (in temperature units). Each coefficient is a polynomial expansion ( Npolycoefficients) of predicted pathlength as a function of frequency in the astronomical band (frequency origin is FreqOrigin).
WVR_METHOD
e.g. “Model” or “Empirical”