| Primary satellite | Secondary satellite |
| Name | Cosmos 1300 Rocket | CSL-04 Deb |
| Spacetrack catalog number | 12786 | 26268 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 19 16:15 | 2021 Jan 19 08:30 |
| Time of closest approach (UTC) | 2020 Dec 03 13:15:30.935 |
| Minimum distance | 186.113 km |
| Height difference | 2.122 km |
| Relative speed | 8.430 km/s |
| Angle between velocity vectors | 68° |
| Geographic position | 76.2°S, 155.7°E |
| Height | 650 km |
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