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Fireball Analysis using the Auroral Optical System ALIS_4D


Gabriel Borderes Motta


Daniel Kastinen, Tima Sergienko, Urban Brändström, Lars-Henrik Snow, Johan Kero (IRF)
Hanna Sundberg, Stefano Barra, Jacob Ask, Petrus Hyvönen (SSC)
Pulmu Pietikäinen (LTU)

  • Framework

  • The ALIS_4D

  • The Fireball

  • WWDSF

  • Final Comments


  • ABISKO

  • ESRANGE

  • KIRUNA

  • SILKKIMUOTK

  • TJAUTJAS



Baseline of the stations (approx. 50-100 km)

FoV: 120°X120°

Latitude: 67.33° - 68.34°

Longitude: 18.82° - 21.92°

Highly light-sensitive
High-resolution scientific EMCCD detectors
Temporal resolution up to 25 images/s
17 filters, filter-wheel (8 positions)
Date: 2023 FEB 27
Time: ~ 18:15:55.9 - 18:16:00.0 [UTC]
Max Period: about 4.1 [s]
Exposure Time: 0.097718 [s]
Filter: 4278 [Å] N+2 1Neg.
Resolution: 1024 X 1024 [px]
SSC logo

Simple Filter



Substract consecutive images
Convulete the image
Than normalize all frames resulting
Silkkimuotka
Kiruna
SSC logo


Kiruna
Silkkimuotka
Tjautjas
Kiruna
Silkkimuotka
Tjautjas

...
...
...
18:15:56.2 [UTC]
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18:15:59.9 [UTC]
SSC logo
SSC logo

    Future Steps

  • TO:

  • Triangulate

  • Get the trajectory

  • Estimate velocity, origin, land region,...



  • POTENTIAL

  • Use the total magnitude in a wavelength to calibrate an spectrum mesured by other equipament.





Thank you for your attention!




Acknowledgements


The "ALIS_4D AUTO-SSA" project is financed by the Swedish National Space Agency NRFP4 grant 2020-304. It is also partly funded by the EU project RIT (Rymd för innovation och tillväxt/Space for innovation and growth) with the objective of developing the space region in northern Sweden.