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File description:
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--File:                   /data2/a_envoyer/2025/01/20250127_230757_extract2.dat
--File size:               100.69 Go
--size of the Header:     36900    octets
--data:                   Spectrum
--start time:             2025-01-27 23:07:57.627236
--stop  time:             2025-01-27 23:39:58.917317
--duration (min):                32.021501
--dt (msec):                  2.621440
--accumulation:           8       
--number of channels:     4       
--number of cubes:        732915  
--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