| Primary satellite | Secondary satellite |
| Name | IRS-1C Rocket | CZ-2C DEB |
| Spacetrack catalog number | 23753 | 40288 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 15 22:52 | 2021 Apr 16 04:35 |
| Time of closest approach (UTC) | 2021 Mar 05 08:19:46.045 |
| Minimum distance | 4.018 km |
| Height difference | 2.637 km |
| Relative speed | 12.002 km/s |
| Angle between velocity vectors | 107° |
| Geographic position | 75.6°S, 159.8°W |
| Height | 828 km |
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