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File description:
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--File:                   /data2/a_envoyer/2024/07/20240709_090413_extract2.dat
--File size:               67.88 Go
--size of the Header:     49188    octets
--data:                   Spectrum
--start time:             2024-07-09 09:04:13.996047
--stop  time:             2024-07-09 09:20:25.433546
--duration (min):                16.190625
--dt (msec):                  2.621440
--accumulation:           8       
--number of channels:     4       
--number of cubes:        370575  
--number of frequencies:  12288   
--central freq (MHz):      25.00
--freq echantillon (MHz): 200.00
--Bandwidth (MHz):         37.50
--first frequency (MHz):    6.25
--last frequency (MHz):    43.75