| Primary satellite | Secondary satellite |
| Name | CUTE-I | EPSILON R/B |
| Spacetrack catalog number | 27844 | 39255 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2026 Jan 18 23:10 | 2026 Jan 18 22:50 |
| Time of closest approach (UTC) | 2025 Dec 20 02:31:33.108 |
| Minimum distance | 24.584 km |
| Height difference | -1.729 km |
| Relative speed | 8.672 km/s |
| Angle between velocity vectors | 71° |
| Geographic position | 11.0°S, 125.2°W |
| Height | 810 km |
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