| Primary satellite | Secondary satellite |
| Name | COSMOS 2490 | Kosmos-1429 |
| Spacetrack catalog number | 39485 | 13761 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Sep 21 01:04 | 2023 Sep 20 22:30 |
| Time of closest approach (UTC) | 2023 Jun 14 20:40:49.616 |
| Minimum distance | 26.761 km |
| Height difference | 0.120 km |
| Relative speed | 10.385 km/s |
| Angle between velocity vectors | 94° |
| Geographic position | 72.0°N, 75.9°E |
| Height | 1516 km |
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