| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | IRS-P2 |
| Spacetrack catalog number | 42188 | 23323 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 23:43 | 2024 Dec 23 02:23 |
| Time of closest approach (UTC) | 2024 Dec 27 12:09:23.946 |
| Minimum distance | 2.973 km |
| Height difference | -0.767 km |
| Relative speed | 14.742 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 79.6°S, 124.8°W |
| Height | 840 km |
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