FIREBall-2 UV balloon telescope in-flight calibration system

Jessica S. Li, Nazende I. Kerkeser, Aafaque R. Khan, Simran Agarwal, Olivia Jones, Erika Hamden, Trenton Brendel, Haeun Chung, Vincent Picouet, David Schiminovich, Drew M. Miles, Keri Hoadley, Ignacio Cevallos-Aleman, Meghna Sitaram, Zeren Lin, Harrison Bradley, D. Christopher Martin, Marty Crabill, Fernando Cruz Aguirre, Charles Antoine ChevrierPhilippe Balard, Patrick Blanchard, Nicolas Bray, Greyson Davis, Xihan Deng, Fabien Harmand, Catherine Hourtolle, Gillian Kyne, Nicole Melso, Johan Montel, Shouleh Nikzad, Alain Peus, Julie Richard, Jared Termini, Jean Noel Valdivia, David Valls-Gabaud, Didier Vibert, Matthew Werneken

Research output: Contribution to journalArticlepeer-review

Abstract

We present the integration of a new calibration system into the Faint Intergalactic-medium Redshifted Emission Balloon-2 (FIREBall-2), which added in-flight calibration capability for the recent September 2023 flight. This system is composed of a calibration source box containing zinc and deuterium lamp sources, focusing optics, electronics, sensors, and a fiber-fed calibration cap with an optical shutter mounted on the spectrograph tank. We discuss how the calibration cap is optimized to be evenly illuminated through non-sequential modeling for the near-UV (191 to 221 nm) for spectrograph slit mask position calibration, electron multiplying charged-coupled device (EMCCD) gain amplification verification, and wavelength calibration. Then, we present the pre-flight performance testing results of the calibration system and their implications for in-flight measurements. FIREBall-2 flew in 2023, but did not collect calibration data due to early termination of the flight.

Original languageEnglish (US)
Article number035002
JournalJournal of Astronomical Telescopes, Instruments, and Systems
Volume10
Issue number3
DOIs
StatePublished - Jul 1 2024

Keywords

  • balloon telescope
  • calibration
  • FIREBall
  • ultraviolet

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Control and Systems Engineering
  • Instrumentation
  • Astronomy and Astrophysics
  • Mechanical Engineering
  • Space and Planetary Science

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