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File description:
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--File:                   /data2/a_envoyer/2024/05/20240508_145726_extract2.dat
--File size:               61.66 Go
--size of the Header:     36900    octets
--data:                   Spectrum
--start time:             2024-05-08 14:57:26.176936
--stop  time:             2024-05-08 15:17:02.697571
--duration (min):                19.608677
--dt (msec):                  2.621440
--accumulation:           8       
--number of channels:     4       
--number of cubes:        448808  
--number of frequencies:  9216    
--central freq (MHz):      20.31
--freq echantillon (MHz): 200.00
--Bandwidth (MHz):         28.12
--first frequency (MHz):    6.25
--last frequency (MHz):    34.37