PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/30-01:27:30
G01     221.9          12.8                4.0 +/-    4.36      10.4 +/-    4.36  0.130 / 0.240
G03     272.1          69.4                3.3 +/-    0.60       3.5 +/-    0.60  0.160 / 0.230
G09     299.2          15.6                2.8 +/-    2.01       6.8 +/-    2.01  0.040 / 0.060
G14     91.9           20.3                4.5 +/-    2.24       9.8 +/-    2.24  0.040 / 0.060
G16     139.4          51.0                5.7 +/-    0.42       7.2 +/-    0.42  0.180 / 0.430
G22     207.6          65.6                4.0 +/-    0.82       4.3 +/-    0.82  0.100 / 0.210
G23     310.8          40.2                3.3 +/-    1.09       4.8 +/-    1.09  0.040 / 0.040
G26     86.4           54.6                3.6 +/-    1.59       4.4 +/-    1.59  0.040 / 0.040
G31     47.5           28.1                1.0 +/-    2.78       1.8 +/-    2.78  0.070 / 0.090