| Primary satellite | Secondary satellite |
| Name | Transit 2A | DMSP 5D-2 F13 DEB |
| Spacetrack catalog number | 45 | 40462 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2021 Feb 25 16:11 | 2021 Feb 23 09:30 |
| Time of closest approach (UTC) | 2021 Jan 28 16:20:58.657 |
| Minimum distance | 35.759 km |
| Height difference | 3.943 km |
| Relative speed | 13.428 km/s |
| Angle between velocity vectors | 130° |
| Geographic position | 65.4°S, 23.6°E |
| Height | 857 km |
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