Comment on egusphere-2022-416

Abstract

The Canary Island Long-Baseline Observatory (CILBO) is a double station meteor camera setup located on the Canary Islands and operated by ESA’s Meteor Research Group since 2010. Observations of meteors are obtained in the visual wavelength band by intensified video cameras from both stations, supplemented by an intensified video camera mounted with a spectral grating at one of the locations. The cameras observe during cloudless and precipitation-free nights and data are transferred to a main computer located at ESA/ESTEC once a day. The image frames that contain spectral information are calibrated, corrected, and finally processed into line intensity profiles. An ablation simulation, based on Bayesian statistics using a Markov-Chain Monte-Carlo method, allows to determine a parameter space, including the ablation temperatures, chemical elements and their corresponding line intensities, to fit against the line intensity profiles of the observed meteor spectra. The algorithm is presented in this paper and one example is discussed. Several hundred spectra have been processed and made available through the Guest Archive Facility of the Planetary Science Archive of ESA. The data format and meta-data are explained.

Authors 10

1. Joe Zender corresponding

   European Space Research and Technology Centre

   Affiliation as printed

   European Space Research and Technology Centre (ESA ESTEC), 2200 AG Noordwijk, The Netherlands

2. Detlef Koschny

   European Space Research and Technology Centre · Technical University of Munich

   Affiliation as printed

   Chair of Astronautics, TU Munich, 85748 Garching, Germany

   European Space Research and Technology Centre (ESA ESTEC), 2200 AG Noordwijk, The Netherlands

3. Regina Rudawska

   European Space Research and Technology Centre

   Affiliation as printed

   RHEA group/ESA ESTEC, 2200 AG Noordwijk, The Netherlands

4. Salvatore Vicinanza

   Delft University of Technology

   Affiliation as printed

   Faculty of Aerospace Engineering, Delft University of Technology, Delft, The Netherlands

5. Stefan Loehle corresponding

   University of Stuttgart

   Affiliation as printed

   IRS, University of Stuttgart, Germany

6. Arne Meindl

   University of Stuttgart

   Affiliation as printed

   IRS, University of Stuttgart, Germany

7. Hans Smit

   European Space Research and Technology Centre

   Affiliation as printed

   European Space Research and Technology Centre (ESA ESTEC), 2200 AG Noordwijk, The Netherlands

8. LIONEL MARRAFFA

   European Space Research and Technology Centre

   Affiliation as printed

   European Space Research and Technology Centre (ESA ESTEC), 2200 AG Noordwijk, The Netherlands

9. Rico Landman corresponding Aachen Leiden Observatory

   Leiden University · Leiden Observatory

   Affiliation as printed

   Leiden Observatory, Leiden University, Postbus 9513, 2300 RA, Leiden, The Netherlands

10. Daphne Stam

    Delft University of Technology

    Affiliation as printed

    Faculty of Aerospace Engineering, Delft University of Technology, Delft, The Netherlands