Comprehensive calibration function

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8.3.4.5 Comprehensive calibration function

A new function calibrate is introduced for more comprehensive calibration. This function calls appropriate calibration scheme by referring the antenna name in the metadata. The user just specify input scantable and calmode parameter that indicates calibration mode (’ps’, ’nod’, ’fs’, or ’otf’). For GBT data, calibrate function calls one of the functions listed in the above section depending upon the value of calmode. For APEX data, apexcal function is called, while for ALMA data, that contains string ’ALMA’ or ’OSF’ in its antenna name, almacal function is called. Calibration scheme for these two telescopes are essentially same, and can be expressed as,

Ta* = Tsys * (ON - OFF) / OFF,

where OFF scans are interpolated in time if possible.

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