| Primary satellite | Secondary satellite |
| Name | FO-99 | GRACE-FO 2 |
| Spacetrack catalog number | 43937 | 43477 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2022 Aug 07 08:06 | 2022 Aug 07 16:00 |
| Time of closest approach (UTC) | 2022 Jul 08 23:23:03.229 |
| Minimum distance | 329.802 km |
| Height difference | 6.689 km |
| Relative speed | 15.183 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 31.3°S, 120.5°E |
| Height | 493 km |
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