HoverCal + PoloCalC: precise on-flight metrology performance results over CLASS telescope

Rolando Dünner; Federico Astori; Gabriele Coppi; Joseph Eimer; Josquin Errard; Juan Fluxá; Yunyang Li; Noemi Mezzanzanica; Federico Nati; Matthew Petroff; Roberto Puddu; Matías Rojas; Mario Zannoni

doi:10.1117/12.3018469

16 August 2024 HoverCal + PoloCalC: precise on-flight metrology performance results over CLASS telescope

Rolando Dünner, Federico Astori, Gabriele Coppi, Joseph Eimer, Josquin Errard, Juan Fluxá, Yunyang Li, Noemi Mezzanzanica, Federico Nati, Matthew Petroff, Roberto Puddu, Matías Rojas, Mario Zannoni

Author Affiliations +

Proceedings Volume 13102, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII; 1310217 (2024) https://doi.org/10.1117/12.3018469
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

We present results from efforts to build a drone-based calibration system providing a high-accuracy polarized reference signal for mm-wave telescopes mapping the cosmic microwave background. The multi-rotor drone allows the source to reach the far-field of small aperture telescopes, such as CLASS or SO-SATs, at their nominal elevation angle, providing a reference signal under normal observing conditions. The goal is to achieve calibration accuracy of at least 0.1 degrees on the absolute polarization angle response. Results from three flight campaigns at the CLASS site, Cerro Toco, Chile, tested the on-board metrology system, using GPS and photogrammetry to determine the source’s position and orientation during flight. The results indicate the drone’s position is known within 10 cm and its polarization angle to better than 0.05 degrees, meeting the system’s technical requirements.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Rolando Dünner, Federico Astori, Gabriele Coppi, Joseph Eimer, Josquin Errard, Juan Fluxá, Yunyang Li, Noemi Mezzanzanica, Federico Nati, Matthew Petroff, Roberto Puddu, Matías Rojas, and Mario Zannoni "HoverCal + PoloCalC: precise on-flight metrology performance results over CLASS telescope", Proc. SPIE 13102, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII, 1310217 (16 August 2024); https://doi.org/10.1117/12.3018469

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available