| Primary satellite | Secondary satellite |
| Name | IRS-1D | DMSP 5D-2 F11 DEB |
| Spacetrack catalog number | 24971 | 28329 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Jul 12 10:53 | 2025 Jul 11 15:41 |
| Time of closest approach (UTC) | 2024 Jun 20 14:04:51.485 |
| Minimum distance | 2795.230 km |
| Height difference | 76.882 km |
| Relative speed | 10.518 km/s |
| Angle between velocity vectors | 90° |
| Geographic position | 65.0°S, 179.7°W |
| Height | 770 km |
|