| Primary satellite | Secondary satellite |
| Name | Cosmos 1151 Rocket | YAOGAN 29 DEB |
| Spacetrack catalog number | 11672 | 42673 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 17 05:09 | 2021 Apr 16 20:00 |
| Time of closest approach (UTC) | 2021 Mar 03 00:15:27.759 |
| Minimum distance | 4.611 km |
| Height difference | -1.399 km |
| Relative speed | 15.052 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 80.7°S, 22.8°E |
| Height | 640 km |
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