| Primary satellite | Secondary satellite |
| Name | GEOS 3 Rocket | COSMOS 1867 COOLANT |
| Spacetrack catalog number | 7735 | 39640 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Dec 05 16:44 | 2023 Dec 05 16:50 |
| Time of closest approach (UTC) | 2023 Oct 03 20:46:50.452 |
| Minimum distance | 0.895 km |
| Height difference | -0.856 km |
| Relative speed | 14.938 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 65.0°S, 151.0°W |
| Height | 795 km |
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