| Primary satellite | Secondary satellite |
| Name | NOAA 15 | deb Delta 89 |
| Spacetrack catalog number | 25338 | 8544 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Feb 26 03:43 | 2021 Feb 25 03:25 |
| Time of closest approach (UTC) | 2021 Jan 23 18:35:55.380 |
| Minimum distance | 29.267 km |
| Height difference | -0.234 km |
| Relative speed | 8.473 km/s |
| Angle between velocity vectors | 68° |
| Geographic position | 80.2°N, 107.3°W |
| Height | 821 km |
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