| Primary satellite | Secondary satellite |
| Name | Cosmos 494 Rocket | PEGASUS DEB |
| Spacetrack catalog number | 6061 | 39318 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 17 20:26 | 2021 Jan 17 06:22 |
| Time of closest approach (UTC) | 2020 Dec 03 12:27:32.581 |
| Minimum distance | 43.732 km |
| Height difference | 5.333 km |
| Relative speed | 12.707 km/s |
| Angle between velocity vectors | 117° |
| Geographic position | 66.5°N, 144.1°E |
| Height | 771 km |
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