| Primary satellite | Secondary satellite |
| Name | Explorer 7 | SL-24 R/B |
| Spacetrack catalog number | 22 | 33397 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2021 Jan 22 12:11 | 2021 Jan 22 14:58 |
| Time of closest approach (UTC) | 2020 Dec 02 07:35:50.008 |
| Minimum distance | 10.563 km |
| Height difference | 3.176 km |
| Relative speed | 14.535 km/s |
| Angle between velocity vectors | 148° |
| Geographic position | 11.0°S, 160.3°W |
| Height | 678 km |
|