| Primary satellite | Secondary satellite |
| Name | deb Agena D | CHECKMATE 8 |
| Spacetrack catalog number | 4749 | 56162 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:21 | 2024 Dec 23 04:09 |
| Time of closest approach (UTC) | 2024 Dec 29 12:32:52.642 |
| Minimum distance | 4.386 km |
| Height difference | 2.499 km |
| Relative speed | 3.047 km/s |
| Angle between velocity vectors | 24° |
| Geographic position | 40.8°S, 70.0°W |
| Height | 955 km |
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