| Primary satellite | Secondary satellite |
| Name | Tiros 1 | CZ-2C R/B |
| Spacetrack catalog number | 29 | 39625 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2021 Apr 13 00:15 | 2021 Apr 13 08:55 |
| Time of closest approach (UTC) | 2021 Mar 10 11:18:52.727 |
| Minimum distance | 4.117 km |
| Height difference | 2.910 km |
| Relative speed | 14.219 km/s |
| Angle between velocity vectors | 142° |
| Geographic position | 24.3°N, 178.7°E |
| Height | 651 km |
|