| Primary satellite | Secondary satellite |
| Name | Transit 2A | deb Agena D |
| Spacetrack catalog number | 45 | 4654 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2021 Mar 07 08:54 | 2021 Mar 03 08:37 |
| Time of closest approach (UTC) | 2021 Jan 23 04:18:43.724 |
| Minimum distance | 1467.951 km |
| Height difference | -43.015 km |
| Relative speed | 14.145 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 45.8°S, 51.7°W |
| Height | 953 km |
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