Era-1 (Cosmos 2548), Russian military nanosatellite designed for the Ministry of Defense, is a Russian military nano-satellite. There is a CubeSat satellite of unknown size, which is called the CubeSan. Dear, it was originally planned for testing advanced microdevices and microsystems for orientation and astronavigation.
| Name of Satellite | Era-1 (Cosmos 2548) |
| Purpose | Technology Development |
| Contractor | Unknown |
| Country of Contractor | Russia |
| Launch Mass (kg.) | 3 |
| Class of Orbit | LEO |
| Perigee (km) | 1 483 |
| Date of Launch | 03.12.2020 |
| Launch Site | Plesetsk Cosmodrome |
| Launch Vehicle | Soyuz-2.1b |
| COSPAR Number | 2020-091D |
| NORAD Number | 47230 |
Era-1 was launched as a new payload. Engineering orbit, it became the designation of Cosmos 2548.
