| Primary satellite | Secondary satellite |
| Name | NOSS 3-3 (C) | FENGYUN 1C DEB |
| Spacetrack catalog number | 28541 | 31095 |
| Radar cross section | | small |
| Epoch of two-line elements (UTC) | 2021 Mar 19 18:45 | 2021 Apr 10 13:16 |
| Time of closest approach (UTC) | 2021 Mar 04 16:35:56.512 |
| Minimum distance | 45.610 km |
| Height difference | 8.217 km |
| Relative speed | 13.870 km/s |
| Angle between velocity vectors | 150° |
| Geographic position | 49.7°S, 132.0°E |
| Height | 1263 km |
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