PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/23-08:42:30
G03     188.7          13.4                3.6 +/-    2.01       9.4 +/-    2.01  0.100 / 0.210
G07     301.1          43.5                2.5 +/-    3.14       3.5 +/-    3.14  0.080 / 0.150
G08     130.4          37.2                4.9 +/-    1.06       7.4 +/-    1.06  0.130 / 0.110
G09     314.0          77.0                3.6 +/-    0.56       3.7 +/-    0.56  0.130 / 0.140
G16     41.7           26.4                0.8 +/-    1.58       1.6 +/-    1.58  0.070 / 0.060
G23     138.6          70.4                5.3 +/-    0.85       5.6 +/-    0.85  0.040 / 0.070
G27     87.0           36.8                6.1 +/-    1.17       9.4 +/-    1.17  0.040 / 0.040
G30     280.9          17.2                4.6 +/-    1.76      10.9 +/-    1.76  0.050 / 0.040