| Primary satellite | Secondary satellite |
| Name | Landsat 7 | IRIDIUM 33 DEB |
| Spacetrack catalog number | 25682 | 36081 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 15 02:40 | 2021 Jan 11 18:34 |
| Time of closest approach (UTC) | 2020 Nov 28 04:55:56.664 |
| Minimum distance | 253.147 km |
| Height difference | 2.788 km |
| Relative speed | 3.084 km/s |
| Angle between velocity vectors | 24° |
| Geographic position | 58.8°N, 82.8°E |
| Height | 713 km |
|