mrtcal-check

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IRAM Memo 2017-1
Observational examples of spectral line calibration at the 30m telescope with MRTCAL and MIRA
C. Marka, J. Pety, S Bardeau, A. Sievers
1. IRAM (Granada)
2. IRAM (Grenoble)
3. Observatoire de Paris
Sep., 14 2017
Version 1.0

### Abstract:

Since February 2017, MRTCAL has replaced MIRA as the software for spectral line data calibration (except polarimetry and continuum) at the 30m-Telescope. Slight changes in the calibrated spectra are expected, for example in form of an improved calibration accuracy at the edges of the atmospheric windows as result of the narrower calibration bandwidth used by MRTCAL (20MHz by default, compared to up to about 1.35GHz for MIRA). This report demonstrates the practical performances of MRTCAL by a systematic comparison of observations calibrated with both softwares.

Keywords: MRTCAL, MIRA, 30m calibration

Related documents: MRTCAL documentation, MIRA documentation, CLASS documentation.

- Contents
- Qualitative impact of the MRTCAL frequency dependent calibration
- Observations dedicated to the comparison between MRTCAL and MIRA
- Qualitative comparison of raw spectra
- Quantitative comparison of line intensities
- Quantitative impact of the MRTCAL frequency dependent calibration
- Comparison of switching modes
- Calibration stability with time and elevation
- Acknowledgments
- References
- List of used lines
- About this document ...