| Primary satellite | Secondary satellite |
| Name | Transit 4A | MSX |
| Spacetrack catalog number | 116 | 23851 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2023 Mar 27 04:19 | 2023 Mar 26 20:38 |
| Time of closest approach (UTC) | 2023 Feb 11 18:38:13.957 |
| Minimum distance | 13.681 km |
| Height difference | 1.340 km |
| Relative speed | 4.239 km/s |
| Angle between velocity vectors | 33° |
| Geographic position | 14.9°S, 69.2°W |
| Height | 900 km |
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