| Primary satellite | Secondary satellite |
| Name | Cosmos 1655 Rocket | deb AGENA D |
| Spacetrack catalog number | 15752 | 18418 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 15 04:41 | 2021 Jan 14 11:26 |
| Time of closest approach (UTC) | 2020 Dec 06 02:26:00.792 |
| Minimum distance | 20.332 km |
| Height difference | 4.382 km |
| Relative speed | 11.741 km/s |
| Angle between velocity vectors | 106° |
| Geographic position | 78.8°S, 59.1°W |
| Height | 1011 km |
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