| Primary satellite | Secondary satellite |
| Name | ISS | KEPLER-1 (CASE) |
| Spacetrack catalog number | 25544 | 43729 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Feb 03 02:13 | 2023 Feb 02 16:09 |
| Time of closest approach (UTC) | 2022 Dec 08 22:38:00.269 |
| Minimum distance | 877.164 km |
| Height difference | 131.411 km |
| Relative speed | 13.166 km/s |
| Angle between velocity vectors | 121° |
| Geographic position | 46.4°S, 9.5°E |
| Height | 441 km |
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