| Primary satellite | Secondary satellite |
| Name | SL-4 R/B | COSMOS 1408 DEB |
| Spacetrack catalog number | 39679 | 50508 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2022 May 22 12:55 | 2022 May 22 11:42 |
| Time of closest approach (UTC) | 2022 Jan 24 13:09:30.917 |
| Minimum distance | 3914.498 km |
| Height difference | 183.572 km |
| Relative speed | 14.052 km/s |
| Angle between velocity vectors | 133° |
| Geographic position | 7.6°N, 118.5°E |
| Height | 428 km |
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