| Primary satellite | Secondary satellite |
| Name | Cosmos 1937 Rocket | DMSP 5D-2 F6 DEB |
| Spacetrack catalog number | 19039 | 40919 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 10 09:51 | 2021 Apr 09 18:36 |
| Time of closest approach (UTC) | 2021 Mar 04 23:46:13.201 |
| Minimum distance | 43.337 km |
| Height difference | 4.575 km |
| Relative speed | 7.874 km/s |
| Angle between velocity vectors | 64° |
| Geographic position | 65.9°N, 58.3°W |
| Height | 764 km |
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