| Primary satellite | Secondary satellite |
| Name | Cosmos 1816 Rocket | SL-8 R/B |
| Spacetrack catalog number | 17360 | 36520 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 13:59 | 2024 Dec 22 22:00 |
| Time of closest approach (UTC) | 2024 Dec 28 06:42:23.112 |
| Minimum distance | 2.476 km |
| Height difference | 2.098 km |
| Relative speed | 11.358 km/s |
| Angle between velocity vectors | 102° |
| Geographic position | 78.9°S, 38.1°E |
| Height | 1026 km |
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