Table 3 Prediction of clock offset in two weeks of Semi-K model (Unit:\( ns \))
Satellite type | PRN | Forecast accuracy/24 h | Forecast accuracy/12 h | Forecast accuracy/6 h | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
QP | QP-T1 | Semi-K | QP | QP-T1 | Semi-K | QP | QP-T1 | Semi-K | ||
GEO | C01 | 12.15 | 11.79 | 11.07 | 7.34 | 7.42 | 7.21 | 5.36 | 5.50 | 5.07 |
C02 | 7.16 | 6.51 | 4.73 | 4.99 | 4.24 | 3.72 | 3.83 | 3.63 | 3.20 | |
C03 | 2.60 | 2.45 | 2.08 | 1.91 | 1.79 | 1.65 | 1.66 | 1.59 | 1.14 | |
C04 | 13.53 | 10.38 | 8.34 | 8.54 | 7.30 | 6.24 | 6.38 | 5.99 | 5.49 | |
C05 | 13.62 | 13.05 | 7.06 | 7.83 | 8.76 | 5.20 | 4.86 | 6.36 | 4.46 | |
IGSO | C06 | 61.59 | 25.21 | 12.36 | 33.23 | 14.22 | 7.69 | 18.50 | 9.18 | 5.67 |
C07 | 11.79 | 10.45 | 7.46 | 7.07 | 6.49 | 5.21 | 5.49 | 5.05 | 4.50 | |
C08 | 6.48 | 6.41 | 4.66 | 4.25 | 4.06 | 3.89 | 3.71 | 3.53 | 3.43 | |
C09 | 10.97 | 7.33 | 6.14 | 7.86 | 5.38 | 4.98 | 6.24 | 4.82 | 4.65 | |
C10 | 22.51 | 22.40 | 20.86 | 10.01 | 9.75 | 8.31 | 5.78 | 5.04 | 4.79 | |
MEO | C11 | 5.31 | 5.23 | 4.50 | 4.77 | 4.76 | 4.37 | 4.67 | 4.63 | 4.30 |
C12 | 4.55 | 4.50 | 3.83 | 3.90 | 3.88 | 3.50 | 3.76 | 3.70 | 3.46 | |
C14 | 5.57 | 5.45 | 4.57 | 4.98 | 4.87 | 4.48 | 4.85 | 4.70 | 4.56 | |