| Primary satellite | Secondary satellite |
| Name | SL-4 R/B | RROCI-2 |
| Spacetrack catalog number | 39679 | 59106 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2025 Jul 19 21:19 | 2025 Jul 19 07:25 |
| Time of closest approach (UTC) | 2024 Jun 18 18:18:33.505 |
| Minimum distance | 3702.712 km |
| Height difference | 186.060 km |
| Relative speed | 15.116 km/s |
| Angle between velocity vectors | 163° |
| Geographic position | 20.1°N, 32.8°W |
| Height | 404 km |
|