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Table 4
Formal uncertainties with and without simulated Tianwen-2 pseudo range data and typical ground-based optical observation data.
| Uncertainties | |||
|---|---|---|---|
| Reference | With added simulated optical observation data | With added simulated optical observation and pseudo range data | |
| 2026 October 1 TDT | |||
| A1 (10−13 au day−2) | – | – | 8.157 |
| A2 (10−14 au day−2) | 4.100 | 1.232 | 0.181 |
| Position (km) | |||
| Radial | 56.203 | 26.892 | 0.197 |
| Transverse | 196.206 | 63.521 | 0.181 |
| Normal | 53.718 | 24.718 | 0.072 |
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