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File description:
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--File:                   /data2/a_envoyer/2024/01/20240128_173401_extract2.dat
--File size:               113.13 Go
--size of the Header:     49188    octets
--data:                   Spectrum
--start time:             2024-01-28 17:34:01.932008
--stop  time:             2024-01-28 18:01:00.998905
--duration (min):                26.984448
--dt (msec):                  2.621440
--accumulation:           8       
--number of channels:     4       
--number of cubes:        617626  
--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