Here we will discuss which calibrations are needed, how to perform them and how the calibration affect ALMA observations. This first part concentrates on aspects related to a single antenna, namely antenna pointing (including the antenna metrology), focusing, and the amplitude calibration, we also mention the bandpass calibration for single measurements.
@article{arxiv.1210.1899,
title = {How ALMA is calibrated: I Antenna-based pointing, focus and amplitude calibration},
author = {T. van Kempen and S. Corder and R. Lucas and R. Mauersberger},
journal= {arXiv preprint arXiv:1210.1899},
year = {2012}
}