| Primary satellite | Secondary satellite |
| Name | STARS | PEGASUS R/B |
| Spacetrack catalog number | 33498 | 27859 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2021 Feb 23 23:11 | 2021 Feb 24 19:59 |
| Time of closest approach (UTC) | 2021 Jan 18 01:34:41.247 |
| Minimum distance | 4.815 km |
| Height difference | -0.019 km |
| Relative speed | 15.056 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 11.8°N, 64.9°W |
| Height | 629 km |
|