| Primary satellite | Secondary satellite |
| Name | Cosmos 1605 Rocket | deb Delta 89 |
| Spacetrack catalog number | 15360 | 7959 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2025 Jun 16 01:23 | 2025 Jun 15 14:51 |
| Time of closest approach (UTC) | 2025 May 14 11:35:05.713 |
| Minimum distance | 8.143 km |
| Height difference | -2.070 km |
| Relative speed | 5.351 km/s |
| Angle between velocity vectors | 43° |
| Geographic position | 69.0°S, 145.6°W |
| Height | 970 km |
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