| Primary satellite | Secondary satellite |
| Name | Explorer 7 | OBJECT D |
| Spacetrack catalog number | 22 | 53387 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2023 Jan 29 20:43 | 2023 Jan 30 04:25 |
| Time of closest approach (UTC) | 2022 Dec 01 17:18:59.677 |
| Minimum distance | 1643.233 km |
| Height difference | -10.706 km |
| Relative speed | 14.455 km/s |
| Angle between velocity vectors | 145° |
| Geographic position | 12.3°N, 113.4°W |
| Height | 548 km |
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