Framework
The ALIS_4D
The Fireball
WWDSF
Final Comments
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)
Summary
Framework
ALIS_4D
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°
ALIS 4D
Highly light-sensitive
High-resolution scientific EMCCD detectors
Temporal resolution up to 25 images/s
17 filters, filter-wheel (8 positions)
ALIS 4D
ALIS 4D
The Fireball
| 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] |
WWDSF
Simple Filter
Substract consecutive images
Convulete the image
Than normalize all frames resulting
WWDSF
Kiruna
Silkkimuotka
Tjautjas
WWDSF
Kiruna
Silkkimuotka
Tjautjas
...
...
...
WWDSF
18:15:56.2 [UTC]
WWDSF
18:15:59.9 [UTC]
WWDSF
Final Comments
TO:
Triangulate
Get the trajectory
Estimate velocity, origin, land region,...
Use the total magnitude in a wavelength to calibrate an spectrum mesured by other equipament.
Future Steps
POTENTIAL
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.