Another year has passed with many meteor spectra. As in the last year (2020), here is the report of these spectra, recorded at Maienfeld during the year 2021
The spectra were recorded with a DMK 33GX249 camera from The Imaging Source (thanks to Roger Spinner for giving me this camera), equipped with a Kowa LM16HC f: 16mm F/1.4 lens and a Thorlabs 50x50mm, 600l/mm grating. All the spectra have been analysed with my Python script, based on the image transformation to an orthographic projection, freely available from Github. With the latest addition of instrument response, atmospheric corrections and use of flat field, the script is more or less complete. Of course, improvements are always possible.
Feel free to comment or suggest improvements.