| Name of the satellite | ISIS 1 |
|---|---|
| Other name(s) | ISIS-A 03669 |
| COSPAR designation | 69-009A |
| Project(s) Manager(s) of the satellite | Larry H. Brace |
| Institute of the project(s) manager(s) | NASA-GSFC |
| Country or Space Agency | USA |
| Link(s) to Web site(s) | http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1969-009A |
| Launch date (dd-mm-yyyy) | 30-01-1969 |
| Termination date (dd-mm-yyyy) | 24-01-1990 |
| Lifetime of the satellite (month) | 252 |
| Type of the orbits | MEO |
| (Initial) Perigee (km) | 578 |
| (Initial) Apogee (km / Re) | 3526 / 0.55 |
| Orbital period (min / hour) | 128.4 / 2.1 |
| Spin rate (rpm) | 2.9 |
| Eccentricity | 0.17475 |
| Inclination (°) | 88.4 |
| Observed regions | Magnetosphere |
| Observed waves | VLF propagation phenomena, ion and hybrid plasma resonances, and correlations between VLF emissions and intense fluxes of energetic particles |
| Name of the experiment | VLF Receiver |