PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/20-00:27:50
G01     233.8          26.2                8.8 +/-    2.30      16.8 +/-    2.30  0.040 / 0.030
G03     309.8          56.5                5.4 +/-    1.64       6.3 +/-    1.64  0.040 / 0.030
G14     72.0           35.2                5.6 +/-    2.01       8.9 +/-    2.01  0.070 / 0.130
G16     153.4          32.7                8.0 +/-    1.64      13.2 +/-    1.64  0.080 / 0.110
G22     270.1          74.1                6.7 +/-    0.89       6.9 +/-    0.89  0.110 / 0.200
G23     298.0          29.3                6.6 +/-    1.95      11.7 +/-    1.95  0.190 / 0.230
G26     118.7          48.9                6.8 +/-    0.84       8.6 +/-    0.84  0.100 / 0.040
G31     42.1           42.8                4.5 +/-    1.09       6.3 +/-    1.09  0.080 / 0.060
G32     89.3           13.0                4.0 +/-    3.20      10.4 +/-    3.20  0.040 / 0.070