| Primary satellite | Secondary satellite |
| Name | Courier 1B | Cosmos 1655 Rocket |
| Spacetrack catalog number | 58 | 15752 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 11:41 | 2024 Dec 22 17:56 |
| Time of closest approach (UTC) | 2024 Dec 24 06:48:16.497 |
| Minimum distance | 1.010 km |
| Height difference | -0.993 km |
| Relative speed | 9.457 km/s |
| Angle between velocity vectors | 79° |
| Geographic position | 28.3°N, 111.5°W |
| Height | 975 km |
|