| Primary satellite | Secondary satellite |
| Name | Cosmos 968 Rocket | SAPPHIRE |
| Spacetrack catalog number | 10521 | 39088 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2026 Jan 16 13:46 | 2026 Jan 16 11:01 |
| Time of closest approach (UTC) | 2025 Dec 15 06:28:46.116 |
| Minimum distance | 9.161 km |
| Height difference | 2.405 km |
| Relative speed | 12.482 km/s |
| Angle between velocity vectors | 113° |
| Geographic position | 73.9°N, 162.7°W |
| Height | 777 km |
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