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File description:
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--File:                   /data2/a_envoyer/2024/12/20241215_195659_extract2.dat
--File size:               102.45 Go
--size of the Header:     40996    octets
--data:                   Spectrum
--start time:             2024-12-15 19:56:59.837563
--stop  time:             2024-12-15 20:26:19.219691
--duration (min):                29.323035
--dt (msec):                  2.621440
--accumulation:           8       
--number of channels:     4       
--number of cubes:        671152  
--number of frequencies:  10240   
--central freq (MHz):      21.87
--freq echantillon (MHz): 200.00
--Bandwidth (MHz):         31.25
--first frequency (MHz):    6.25
--last frequency (MHz):    37.50