| Primary satellite | Secondary satellite |
| Name | GP-B | COSMOS 1823 DEB |
| Spacetrack catalog number | 28230 | 39816 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 15 12:03 | 2021 Jan 13 15:04 |
| Time of closest approach (UTC) | 2020 Dec 08 02:42:33.030 |
| Minimum distance | 19.366 km |
| Height difference | 2.759 km |
| Relative speed | 6.040 km/s |
| Angle between velocity vectors | 47° |
| Geographic position | 68.4°S, 157.2°E |
| Height | 657 km |
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