| Official name | COSMOS 1873 |
| Alternative name | Cosmos-1873 |
| Cospar ID | 1987-071A |
| Norad ID | 18318 |
| Launch date | 1987-08-28 |
| Launch site | TTMTR |
| Launch vehicle | Zenit-2 |
| Country/Organization | USSR |
| Type application | Vehicle Evaluation |
| RCS size | LARGE |
| Decay date | 1987-09-14 |
| Shape | Sphere + Cyl |
| Mass (kg) | 6640.24 |
| Diameter (m) | 2.4 |
| Height (m) | 6.99 |
| Span (m^2) | 10 |
| Propulsion | None |
| Satellite | COSPAR | Date | LS | Launch Vehicle | Remarks | |
|---|---|---|---|---|---|---|
| COSMOS 1767 | 1986-056A | 1986-07-30 | TTMTR | Zenit-2 | ||
| COSMOS 1820 | 1987-016A | 1987-02-14 | TTMTR | Zenit-2 | ||
| COSMOS 1871 | 1987-065A | 1987-08-01 | TTMTR | Zenit-2 | ||
| COSMOS 1873 | 1987-071A | 1987-08-28 | TTMTR | Zenit-2 |
