PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/14-09:43:10
G01     120.0          17.2                3.8 +/-    1.52       8.9 +/-    1.52  0.030 / 0.040
G07     79.3           66.5                5.4 +/-    0.95       5.8 +/-    0.95  0.030 / 0.040
G08     44.7           30.6                3.2 +/-    0.97       5.5 +/-    0.97  0.020 / 0.040
G09     173.9          22.9                5.8 +/-    1.75      11.9 +/-    1.75  0.020 / 0.040
G11     106.5          39.7                5.9 +/-    0.53       8.6 +/-    0.53  0.090 / 0.200
G13     318.0          19.0                2.4 +/-    2.79       5.5 +/-    2.79  0.090 / 0.220
G17     200.8          24.9                4.7 +/-    1.51       9.2 +/-    1.51  0.060 / 0.080
G18     93.9           20.4                4.6 +/-    1.38      10.1 +/-    1.38  0.050 / 0.080
G28     289.5          56.4                4.4 +/-    0.70       5.2 +/-    0.70  0.040 / 0.060
G30     341.8          66.7                2.7 +/-    0.80       3.0 +/-    0.80  0.040 / 0.060