By G. K. Hartmann, K. Oberländer, G. Schmidt, J. P. Schödel (auth.)
From October 1964 to may perhaps 1969 the forty MHz, forty-one MHz, and 360 MHz signs of the satellite tv for pc Explo zero zero rer 22, have been recorded at Lindau (51,650 N; 10,125 E). The Faraday influence recordings at forty MHz and forty-one MHz and Dispersive-Doppler-effect recordings at forty MHz and 360 MHz have been used to calculate the ionospheric electron content material as much as one thousand km. The suggest electron content material for 1 hour classes over a interval zero of 3 months as bought at fifty one. 6 N geographic range as derived from a number of evaluate equipment is gifted. moreover, the appropriate severe frequency FOF2 is displayed. an analogous presentation was once selected for the calculated slabthickness info. For one particular case the day-by-day version of the electron con tent as decided by way of measurements used to be in comparison with a suitable theoretical curve. The contract, was once really sturdy. as a result of technical difficulties the beacons have been switched off in 1969. Now the 5 orbiting FS-NNSS satellites offer a great probability to figure out the ionospheric electron content material as much as 1100 km quite competently through comparing the Dispersive Doppler recordings acquired at a hundred and fifty MHz and four hundred MHz. The amplitude recordings of the forty MHz and forty-one MHz signs of Explorer 22 have been in addition used for amplitude scintillation stories. Simultaneous Dispersive-Doppler-recordings enabled partly additionally pha se scintillation reviews. part and amplitude recordings have been compared.
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