Data processing and calibration pipeline for DESHIMA 2.0 observations on the ASTE telescope

Abstract

Microwave kinetic inductance detectors (MKIDs) enable multiplexed spectroscopy at submillimeter wavelengths. DESHIMA 2.0, an on-chip filterbank spectrometer on the 10-m ASTE telescope in Chile, is among the first instruments to demonstrate wideband MKID spectroscopy on sky. While it provides simultaneous spectra over a broad band, the data require careful processing. The responsivity and noise of individual KIDs vary between days due to atmospheric and instrumental conditions. Detector flagging, performance tracking, and calibration are essential. Atmospheric correction, responsivity normalization, and frequency alignment are required to convert raw timestreams into usable spectra or maps. In this poster, we present the DESHIMA 2.0 data-processing workflow, including detector checks, automated masking, and calibration. We show how these procedures improve the fidelity and reproducibility of the final data and discuss implications for future DESHIMA and TIFUUN observations.

Authors 12

1. Shinji Fujita

   The Institute of Statistical Mathematics

   Affiliation as printed

   The Institute of Statistical Mathematics (Japan)

2. K. Karatsu Aachen SRON Space Research Organization Netherlands

   Space Research Organisation Netherlands

   Affiliation as printed

   SRON Space Research Organization Netherlands (Netherlands)

3. Shiro Ikeda

   The Institute of Statistical Mathematics

   Affiliation as printed

   The Institute of Statistical Mathematics (Japan)

4. Akio Taniguchi

   Kitami Institute of Technology

   Affiliation as printed

   Kitami Institute of Technology (Japan)

5. Akira Endo

   Delft University of Technology

   Affiliation as printed

   Technische Univ. Delft (Netherlands)

6. Tatsuya Takekoshi

   Kitami Institute of Technology

   Affiliation as printed

   Kitami Institute of Technology (Japan)

7. Yuri Nishimura

   University of Tsukuba

   Affiliation as printed

   Univ. of Tsukuba (Japan)

8. Kotaro Kohno

   The University of Tokyo

   Affiliation as printed

   The Univ. of Tokyo (Japan)

9. Stefanie Brackenhoff

   Delft University of Technology

   Affiliation as printed

   Technische Univ. Delft (Netherlands)

10. Arend Moerman

    Delft University of Technology

    Affiliation as printed

    Technische Univ. Delft (Netherlands)

11. Juri Yamanaka

    Nagoya University

    Affiliation as printed

    Nagoya Univ. (Japan)

12. Yoichi Tamura

    Nagoya University

    Affiliation as printed

    Nagoya Univ. (Japan)