| Primary satellite | Secondary satellite |
| Name | Cosmos 1328 | DEKART |
| Spacetrack catalog number | 12987 | 46493 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Oct 03 18:12 | 2023 Oct 03 19:36 |
| Time of closest approach (UTC) | 2023 Jun 01 13:06:56.877 |
| Minimum distance | 79.813 km |
| Height difference | 15.654 km |
| Relative speed | 15.210 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 68.0°N, 147.7°W |
| Height | 531 km |
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