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File description:
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--File:                   /databf/nda/Juno/2017/06/20170621_174239_extract1.dat
--File size:               978.35 Mo
--size of the Header:     12324    octets
--data:                   Spectrum
--start time:             2017-06-21 17:42:40.037707
--stop  time:             2017-06-21 18:11:48.391370
--duration (min):                29.139228
--dt (msec):                 83.886078
--accumulation:           8       
--number of channels:     4       
--number of cubes:        20843   
--number of frequencies:  3072    
--central freq (MHz):      25.00
--freq echantillon (MHz): 200.00
--Bandwidth (MHz):         37.50
--first frequency (MHz):    6.25
--last frequency (MHz):    43.74