| Primary satellite | Secondary satellite |
| Name | Resurs 1-4 Rocket | COSMOS 2491 DEB |
| Spacetrack catalog number | 25400 | 45128 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Sep 17 19:46 | 2024 Aug 09 13:10 |
| Time of closest approach (UTC) | 2024 Aug 15 19:46:55.669 |
| Minimum distance | 5.236 km |
| Height difference | 2.423 km |
| Relative speed | 14.533 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 81.1°S, 14.1°W |
| Height | 829 km |
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