| Primary satellite | Secondary satellite |
| Name | GP-B | PSLV DEB |
| Spacetrack catalog number | 28230 | 27146 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 17 17:38 | 2021 Jan 17 18:58 |
| Time of closest approach (UTC) | 2020 Dec 07 13:51:20.807 |
| Minimum distance | 40.993 km |
| Height difference | -0.353 km |
| Relative speed | 12.357 km/s |
| Angle between velocity vectors | 110° |
| Geographic position | 81.0°S, 168.9°E |
| Height | 660 km |
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