Comparative analysis of meteor spectra observed simultaneously from multiple locations

· by · in ,

Veronika Pazderová, Pavol Matlovič, Hadrien Devillepoix

Icarus, In Press, Journal Pre-proof, Available online 17 April 2026

LINK

“Highlights

  • Identification of key factors influencing the precision of relative line intensity ratios in AMOS-Spec-HR meteor spectra.
  • The major factors identified include focusing, spectrum extraction geometry, observing geometry, and calibration errors.
  • The observed discrepancies arise from identifiable factors, and considering them reinforces the reliability of relative intensity-ratio estimates crucial for meteoroid composition analysis.”

“Meteor spectroscopy is a key method for probing the composition of meteoroids, providing insights into both their overall composition and the relative abundances of individual species. In this study, we present a comparison of meteor spectra recorded simultaneously from multiple observing sites within the Australian segment of the AMOS (All-sky Meteor Orbit System) network. We examine the origins of spectral discrepancies between the respective systems, considering factors such as focusing, spectrum extraction geometry, calibration, and observing geometry. This work represents one of the few detailed examinations of such effects. Our results show that factors such as observing geometry, focusing, calibration procedures, instrument characteristics, and specific data-processing approaches can introduce uncertainties in relative line intensities that are typically unresolved in conventional single-station observations. The four case studies presented in this work demonstrate that the sources of discrepancy in relative line intensities can be identified and potentially accounted for, ensuring that meteoroid composition estimates based on these intensities remain robust.”

Related posts (automatically generated):

  1. Automated Systems for the analysis of meteor spectra
  2. Extension of the plasma radiation database PARADE for the analysis of meteor spectraOPEN ACCESS 
  3. Achondrites in meteor data: Spectra, dynamics, and physical properties of candidate aubrite and eucrite impactorsOPEN ACCESS 
  4. Properties, age, and origin of a huge meteor cluster observed over Scandinavia on 30 October 2022OPEN ACCESS 
  5. Meteor observations in Tajikistan within the global meteor network project: Preliminary results
  6. Improvements in digital meteor spectra reductionOPEN ACCESS 
  7. Trajectory, orbit, and spectroscopic analysis of a bright fireball observed over Spain on April 13, 2013
  8. Data on 824 fireballs observed by the digital cameras of the European Fireball Network in 2017-2018. II. Analysis of orbital and physical properties of cm-sized meteoroidsOPEN ACCESS 
  9. Statistical and probabilistic analysis of meteor and superbolide observations from ground and space platformsOPEN ACCESS 
  10. Data on 824 fireballs observed by the digital cameras of the European Fireball Network in 2017–2018. I. Description of the network, data analysis, and the catalogOPEN ACCESS 
Tags: , , ,