| 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 03 14:12 | 2023 Dec 03 09:34 |
| Time of closest approach (UTC) | 2023 Oct 03 15:43:36.188 |
| Minimum distance | 0.620 km |
| Height difference | -0.620 km |
| Relative speed | 14.936 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 65.1°S, 78.6°W |
| Height | 795 km |
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