| Primary satellite | Secondary satellite |
| Name | Cosmos 1151 Rocket | COMPASS 1 |
| Spacetrack catalog number | 11672 | 32787 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 17 05:09 | 2021 Apr 16 21:57 |
| Time of closest approach (UTC) | 2021 Mar 04 15:52:14.002 |
| Minimum distance | 2.032 km |
| Height difference | 0.275 km |
| Relative speed | 15.127 km/s |
| Angle between velocity vectors | 180° |
| Geographic position | 67.1°N, 0.1°E |
| Height | 605 km |
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