PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-08:12:40
G01     44.1           20.1                5.2 +/-    2.87      11.5 +/-    2.87  0.060 / 0.080
G06     175.1          31.6                7.2 +/-    0.91      12.1 +/-    0.91  0.060 / 0.080
G11     44.0           12.7                2.4 +/-    2.19       6.4 +/-    2.19  0.100 / 0.230
G13     242.7          27.5                6.9 +/-    2.11      12.8 +/-    2.11  0.080 / 0.330
G15     276.2          14.6                3.8 +/-    1.76       9.5 +/-    1.76  0.070 / 0.050
G17     340.1          76.3                6.5 +/-    0.58       6.6 +/-    0.58  0.050 / 0.060
G19     259.7          66.9                6.4 +/-    0.88       6.9 +/-    0.88  0.250 / 0.380
G24     318.5          11.7               -4.6 +/-   27.74     -12.4 +/-   27.74  0.230 / 0.320
G28     50.9           55.6                5.8 +/-    1.12       6.9 +/-    1.12  0.040 / 0.020
G30     153.3          38.1                7.9 +/-    0.94      11.9 +/-    0.94  0.030 / 0.020