| Primary satellite | Secondary satellite |
| Name | Tiros 1 | DMC 3-FM2 |
| Spacetrack catalog number | 29 | 40716 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2021 Apr 13 00:15 | 2021 Apr 13 02:38 |
| Time of closest approach (UTC) | 2021 Mar 07 15:37:10.864 |
| Minimum distance | 2.394 km |
| Height difference | 2.165 km |
| Relative speed | 14.398 km/s |
| Angle between velocity vectors | 146° |
| Geographic position | 8.0°N, 80.5°W |
| Height | 652 km |
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