| Primary satellite | Secondary satellite |
| Name | Tiros 1 | IRIDIUM 33 DEB |
| Spacetrack catalog number | 29 | 33962 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2021 Jan 16 11:16 | 2021 Jan 16 11:24 |
| Time of closest approach (UTC) | 2020 Dec 07 10:09:28.578 |
| Minimum distance | 185.433 km |
| Height difference | -1.778 km |
| Relative speed | 13.700 km/s |
| Angle between velocity vectors | 131° |
| Geographic position | 22.3°N, 4.6°E |
| Height | 660 km |
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