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File description:
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--File:                   /data2/a_envoyer/2026/06/20260615_152847_extract2.dat
--File size:               16.22 Go
--size of the Header:     24612    octets
--data:                   Spectrum
--start time:             2026-06-15 15:28:47.221450
--stop  time:             2026-06-15 15:36:31.350013
--duration (min):                7.7354760
--dt (msec):                  2.621440
--accumulation:           8       
--number of channels:     4       
--number of cubes:        177052  
--number of frequencies:  6144    
--central freq (MHz):      15.62
--freq echantillon (MHz): 200.00
--Bandwidth (MHz):         18.75
--first frequency (MHz):    6.25
--last frequency (MHz):    25.00