| Primary satellite | Secondary satellite |
| Name | FO-99 | GRACE-FO 1 |
| Spacetrack catalog number | 43937 | 43476 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2022 Aug 11 07:45 | 2022 Aug 11 16:05 |
| Time of closest approach (UTC) | 2022 Jul 09 00:56:51.771 |
| Minimum distance | 317.200 km |
| Height difference | 5.224 km |
| Relative speed | 15.182 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 32.5°S, 96.9°E |
| Height | 494 km |
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