| Primary satellite | Secondary satellite |
| Name | Cosmos 1500 | FLOCK 4S 31 |
| Spacetrack catalog number | 14372 | 47475 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Jan 28 16:45 | 2023 Jan 28 17:38 |
| Time of closest approach (UTC) | 2022 Dec 02 20:19:04.570 |
| Minimum distance | 2694.909 km |
| Height difference | -19.009 km |
| Relative speed | 14.424 km/s |
| Angle between velocity vectors | 143° |
| Geographic position | 55.1°N, 39.4°W |
| Height | 517 km |
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