Kopisty Observatory is located in the central part of the North Bohemian brown coal basin at an altitude of 240 m above sea level, in the immediate vicinity of the petrochemical company Chemopetrol in Litvínov. In the past, there were a large number of brown coal quarries in the vicinity, which are now mostly recultivated. The proximity of the petrochemical plant, lignite mining, heavy industry and the high concentration of traffic (mainly freight transport) have a significant impact on air quality in the area. There are no meteorological stations of the Czech Meteorological Office in the surrounding area, with the exception of the precipitation measuring station in Teplice, so the importance of measurements and observations at the observatory in Kopisty is considerable.

MAGION 4 was launched on 3.8.1995 to a highly elliptical orbit with a perigee of about 1000 km and an apogee of 198000 km. The satellite's attitude was stabilized by spin, with the main axis pointing towards the Sun to ensure sufficient energy. It measured plasma waves, ionospheric plasma parameters and the structure of the Earth's magnetosphere. The perigee was decreasing due to the gravitational field of the Moon.

As part of the international Interkosmos programme, the Interkosmos 3 satellite was launched into orbit. It was also the first satellite to carry on board an instrument from the ionospheric compartment, a telemetry transmitter for the transmission of electromagnetic field signals in the very low frequency band (UKV FM).

The air temperature of 40.4 °C is the highest air temperature ever measured in the Czech Republic. It was recorded during a brief heat wave associated with the advection of tropical air at the back of a ridge of high pressure that had moved into central Europe in the previous days.

MAGION 5 (the last from the series) was launched on 29.8.1996 to an elliptical orbit with a perigee of about 1000 km and an apogee of 20000 km. The satellite's attitude was stabilized by spin, with the main axis pointing towards the Sun to ensure sufficient energy. It measured plasma waves, ionospheric plasma parameters and the Earth's magnetic field. It also carried a camera on board. A significant part of its orbit was in the Earth's radiation belts.