| Primary satellite | Secondary satellite |
| Name | Cosmos 1656 | THORAD AGENA D DEB |
| Spacetrack catalog number | 15755 | 42550 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 24 06:42 | 2023 Sep 14 22:58 |
| Time of closest approach (UTC) | 2023 Jun 06 07:34:52.067 |
| Minimum distance | 890.169 km |
| Height difference | 3.428 km |
| Relative speed | 5.657 km/s |
| Angle between velocity vectors | 45° |
| Geographic position | 52.9°N, 125.3°W |
| Height | 850 km |
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