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File description:
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--File:                   /data2/a_envoyer/2024/01/20240126_173040_extract2.dat
--File size:               271.51 Go
--size of the Header:     49188    octets
--data:                   Spectrum
--start time:             2024-01-26 17:30:40.260440
--stop  time:             2024-01-26 18:35:26.015706
--duration (min):                64.762588
--dt (msec):                  2.621440
--accumulation:           8       
--number of channels:     4       
--number of cubes:        1482299 
--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