| Official name | COSMOS 2520 |
| Alternative name | Cosmos-2520 |
| Cospar ID | 2017-046A |
| Norad ID | 42907 |
| Launch date | 2017-08-16 |
| Launch site | TTMTR |
| Launch vehicle | Proton-M Briz-M (Ph.3) |
| Country/Organization | Russia |
| Type application | Communication |
| RCS size | UNKNOWN |
| Decay date | ON ORBIT |
| Period (min) | 1436.11 |
| Inclination (deg) | 0.03 |
| Perigee (km) | 35785 |
| Apogee (km) | 35789 |
| Eccentricity | 5.58862156649062E-05 |
| Mean motion (revs. per day) | 1.00270870615761 |
| Semi-Major axis (km) | 42165.135 |
| Raan (deg) | 87.9809 |
| Arg of perigee (deg) | 295.3748 |
| Shape | Cyl + 2 Pan |
| Mass (kg) | 3162 |
| Diameter (m) | 2 |
| Height (m) | 6 |
| Span (m^2) | 27 |
| Lifetime | 15 years |
| Contractors | ISS Reshetnev (prime) |
| Configuration | Ekspress-2000 |
| Power | 2 deployable solar arrays, batteries |
| Satellite | COSPAR | Date | LS | Launch Vehicle | Remarks | |
|---|---|---|---|---|---|---|
| COSMOS 2520 | 2017-046A | 2017-08-16 | TTMTR | Proton-M Briz-M (Ph.3) | ||
| COSMOS 2526 | 2018-037A | 2018-04-18 | TTMTR | Proton-M Briz-M (Ph.3) | ||
| COSMOS 2533 | 2018-107A | 2018-12-21 | TTMTR | Proton-M Briz-M (Ph.3) | ||
| COSMOS 2539 | 2019-048A | 2019-08-05 | TTMTR | Proton-M Briz-M (Ph.3) |
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