| Primary satellite | Secondary satellite |
| Name | NEE 01 PEGASUS | COSMOS 2251 DEB |
| Spacetrack catalog number | 39151 | 33795 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2021 Feb 25 18:14 | 2021 Feb 25 08:31 |
| Time of closest approach (UTC) | 2021 Jan 29 09:24:39.059 |
| Minimum distance | 3.856 km |
| Height difference | 1.340 km |
| Relative speed | 15.057 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 43.4°N, 144.8°W |
| Height | 627 km |
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