| Primary satellite | Secondary satellite |
| Name | Courier 1B Rocket | TATIANA |
| Spacetrack catalog number | 59 | 28523 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Mar 03 10:48 | 2021 Mar 03 00:43 |
| Time of closest approach (UTC) | 2021 Jan 22 01:47:13.214 |
| Minimum distance | 14.350 km |
| Height difference | 2.029 km |
| Relative speed | 9.330 km/s |
| Angle between velocity vectors | 78° |
| Geographic position | 28.1°S, 55.3°W |
| Height | 965 km |
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