| Primary satellite | Secondary satellite |
| Name | DOVE 4 | COSMOS 1867 COOLANT |
| Spacetrack catalog number | 39430 | 39640 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2021 Mar 05 04:39 | 2021 Mar 04 14:23 |
| Time of closest approach (UTC) | 2021 Jan 23 01:27:57.963 |
| Minimum distance | 9.310 km |
| Height difference | -0.685 km |
| Relative speed | 14.690 km/s |
| Angle between velocity vectors | 163° |
| Geographic position | 7.5°N, 168.9°E |
| Height | 794 km |
|