| Primary satellite | Secondary satellite |
| Name | NEE 01 PEGASUS | COSMOS 2251 DEB |
| Spacetrack catalog number | 39151 | 36070 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2021 Feb 25 18:14 | 2021 Feb 25 07:33 |
| Time of closest approach (UTC) | 2021 Jan 25 04:56:42.384 |
| Minimum distance | 211.400 km |
| Height difference | -8.267 km |
| Relative speed | 14.484 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 68.5°N, 91.1°W |
| Height | 631 km |
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