| Primary satellite | Secondary satellite |
| Name | STRAND 1 | Tiros 4 despin weight |
| Spacetrack catalog number | 39090 | 227 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2025 Jun 18 10:47 | 2025 Jun 18 01:50 |
| Time of closest approach (UTC) | 2024 Jul 28 09:19:09.953 |
| Minimum distance | 578.597 km |
| Height difference | -20.128 km |
| Relative speed | 14.259 km/s |
| Angle between velocity vectors | 145° |
| Geographic position | 9.8°N, 132.6°E |
| Height | 768 km |
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