| Primary satellite | Secondary satellite |
| Name | M-CUBED/EXP-1 PRIME | Cosmos 1703 |
| Spacetrack catalog number | 37855 | 16262 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2021 Mar 03 08:38 | 2021 Mar 03 13:27 |
| Time of closest approach (UTC) | 2021 Jan 19 23:34:41.394 |
| Minimum distance | 8.154 km |
| Height difference | 0.451 km |
| Relative speed | 15.123 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 57.3°S, 85.6°W |
| Height | 559 km |
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