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File description:
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--File:                   /data2/a_envoyer/2025/10/20251016_062836_extract2.dat
--File size:               83.17 Go
--size of the Header:     28708    octets
--data:                   Spectrum
--start time:             2025-10-16 06:28:36.506360
--stop  time:             2025-10-16 07:02:36.526718
--duration (min):                34.000339
--dt (msec):                  2.621440
--accumulation:           8       
--number of channels:     4       
--number of cubes:        778207  
--number of frequencies:  7168    
--central freq (MHz):      17.19
--freq echantillon (MHz): 200.00
--Bandwidth (MHz):         21.87
--first frequency (MHz):    6.25
--last frequency (MHz):    28.12