| Name of the satellite | Intercosmos 25 |
|---|---|
| Other name(s) | APEX-MAIN 21819 |
| COSPAR designation | 91-086A |
| Project(s) Manager(s) of the satellite | ????? |
| Institute of the project(s) manager(s) | ICR |
| Country or Space Agency | RUS |
| Link(s) to Web site(s) | http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1991-086A |
| Launch date (dd-mm-yyyy) | 18-12-1991 |
| Termination date (dd-mm-yyyy) | ????? |
| Lifetime of the satellite (month) | ????? |
| Type of the orbits | LEO |
| (Initial) Perigee (km) | 440 |
| (Initial) Apogee (km / Re) | 3080 / 0.5 |
| Orbital period (min / hour) | 121.7 / 2 |
| Spin rate (rpm) | ????? |
| Eccentricity | 0.1621 |
| Inclination (°) | 82.5 |
| Observed regions | Magnetosphere |
| Observed waves | ***** |
| Name of the first experiment | 3 Component VLF E/B Wave Analyzer |
| Name of the second experiment | 3 Component Search Coil Magnetometer |
| Name of the third experiment | 3 Component Ferrosond Magnetometer |