| Primary satellite | Secondary satellite |
| Name | Cosmos 1500 Rocket | Spot 1 |
| Spacetrack catalog number | 14373 | 16613 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Apr 16 20:13 | 2021 Apr 16 21:50 |
| Time of closest approach (UTC) | 2021 Mar 09 00:05:31.591 |
| Minimum distance | 4.455 km |
| Height difference | 0.557 km |
| Relative speed | 14.934 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 81.1°N, 59.4°W |
| Height | 619 km |
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