| Primary satellite | Secondary satellite |
| Name | FO-29 | Transit VBN-2 |
| Spacetrack catalog number | 24278 | 704 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2021 Feb 27 19:00 | 2021 Feb 27 20:26 |
| Time of closest approach (UTC) | 2021 Jan 22 01:20:50.042 |
| Minimum distance | 10.656 km |
| Height difference | 5.947 km |
| Relative speed | 2.868 km/s |
| Angle between velocity vectors | 23° |
| Geographic position | 67.0°N, 53.2°W |
| Height | 1111 km |
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