Satellite Beacons Observations from 1964 to 1970
Hartmann, G. K. / Schödel, J. P. / Schmidt, G. / Oberländer, K.![Satellite Beacons Observations from 1964 to 1970](https://support.digitalhusky.com/media/annotations/sorted/133/13394533/CHSBZCOP0313394533.jpg)
From October 1964 to May 1969 the 40 MHz, 41 MHz, and 360 MHz signals of the satellite Explo 0 0 rer 22, were recorded at Lindau (51, 650 N, 10, 125 E). The Faraday effect recordings at 40 MHz and 41 MHz and Dispersive-Doppler-effect recordings at 40 MHz and 360 MHz were used to calculate the ionospheric electron content up to 1000 km. The mean electron content for 1 hour periods over a period 0 of three months as obtained at 51. 6 N geograph...