| Primary satellite | Secondary satellite |
| Name | Meteor 1-15 Rocket | Transit 2A |
| Spacetrack catalog number | 6660 | 45 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Jan 19 03:58 | 2021 Jan 18 19:05 |
| Time of closest approach (UTC) | 2020 Nov 29 14:02:35.070 |
| Minimum distance | 110.336 km |
| Height difference | -1.803 km |
| Relative speed | 9.393 km/s |
| Angle between velocity vectors | 79° |
| Geographic position | 65.8°N, 104.9°E |
| Height | 856 km |
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