| Primary satellite | Secondary satellite |
| Name | Cosmos 1340 | HONGHU 1 |
| Spacetrack catalog number | 13067 | 58554 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2025 Apr 04 01:01 | 2025 Feb 28 22:27 |
| Time of closest approach (UTC) | 2024 Jun 25 07:52:18.049 |
| Minimum distance | 1247.472 km |
| Height difference | -123.980 km |
| Relative speed | 14.817 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 70.0°S, 169.3°W |
| Height | 367 km |
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