CALCURVE Calibration curve 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

FEED_ID

Int Feed 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

TYPE_CURVE

String Type of Curve (Ampli or Phase)

TIME_ORIGIN

Double s EPOCH Origin for the polynomial

CURVE

Float( Npoly, Nr) List of the polynomial coefficients

FREQUENCY_RANGE

Double(2) Hz FREQUENCY Frequency range over which the result is valid

(REF_ANTENNA_ID)

Int Reference Antenna Identifier


Notes: This table contains the result of fitting a calibration curve to a series of scans.
CAL_DATA_ID
Calibration data identifier
CAL_REDUCTION_ID
Calibration reduction identifier
ANTENNA_ID
Antenna identifier
FEED_ID
Feed identifier.
NUM_POLY
Series order Npoly
START_VALID_TIME
Start time of result validity period
END_VALID_TIME
End time of result validity period
TYPE_CURVE
Type of Curve: Amplitude or Phase
TIME_ORIGIN
Origin of Polynomial interval
NUM_POLY
Degree of polynomial
CURVE
Coefficients of Polynomial (these are Chebichev polynomials in the interval [TimeOrigin,TimeEnd] reduced to [-1.,1.])
FREQUENCY_RANGE
Frequency range in which the result is valid
REF_ANTENNA_ID
Reference antenna. Must be used for curves of type Phase.