Space-based
| Name | Location | Remarks |
|---|---|---|
| HALCA (Highly Advanced Laboratory for Communications and Astronomy) | Earth orbit with an apogee altitude of 21,400 km and a perigee altitude of 560 km. | |
| Zond 3 | Russian spacecraft carrying a radio telescope | |
| Spektr-R or RadioAstron | 10 meter radio telescope in a highly elliptical earth orbit. Launched July 2011. |
Read more about this topic: List Of Radio Telescopes