| Primary satellite | Secondary satellite |
| Name | Cosmos 1331 Rocket | DMSP B5D1-2 |
| Spacetrack catalog number | 13028 | 10033 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Mar 04 10:09 | 2021 Mar 04 17:35 |
| Time of closest approach (UTC) | 2021 Jan 20 03:51:13.998 |
| Minimum distance | 5.020 km |
| Height difference | 1.402 km |
| Relative speed | 14.920 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 14.6°S, 52.1°W |
| Height | 771 km |
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