| Primary satellite | Secondary satellite |
| Name | SL-8 R/B | Cosmos 1816 Rocket |
| Spacetrack catalog number | 36520 | 17360 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 05:12 | 2024 Dec 22 13:59 |
| Time of closest approach (UTC) | 2024 Dec 28 06:42:23.108 |
| Minimum distance | 2.464 km |
| Height difference | -2.103 km |
| Relative speed | 11.358 km/s |
| Angle between velocity vectors | 102° |
| Geographic position | 78.9°S, 38.0°E |
| Height | 1028 km |
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