| Primary satellite | Secondary satellite |
| Name | Cosmos 1339 Rocket | CHECKMATE 1 |
| Spacetrack catalog number | 13066 | 56169 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 06 22:28 | 2024 Dec 06 20:49 |
| Time of closest approach (UTC) | 2024 Nov 12 20:49:12.845 |
| Minimum distance | 5.513 km |
| Height difference | 4.137 km |
| Relative speed | 10.003 km/s |
| Angle between velocity vectors | 86° |
| Geographic position | 79.0°S, 149.6°W |
| Height | 975 km |
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