Table 3.
Summary of uncertainties
| Type of uncertainty | Estimated size (kHz) | Comment |
|---|---|---|
| Statistical uncertainties | 3.8 | Poisson errors and curve fitting to measured data |
| Modelling uncertainties | 3 | Fitting of simulated data to piecewise-analytic function |
| Modelling uncertainties | 1 | Waist size of the laser, antihydrogen dynamics |
| Magnetic-field stability | 0.03 | From microwave removal of 1Sc-state atoms (see text) |
| Absolute magnetic-field measurement | 0.6 | From electron cyclotron resonance |
| Laser-frequency stability | 2 | Limited by GPS clock |
| d.c. Stark shift | 0.15 | Not included in simulation |
| Second-order Doppler shift | 0.08 | Not included in simulation |
| Discrete frequency choice of measured points | 0.36 | Determined from fitting sets of pseudo-data |
| Total | 5.4 |
The estimated statistical and systematic errors (at 121 nm) are tabulated.