PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/15-03:57:50
G07     337.5          59.7                3.7 +/-    0.55       4.2 +/-    0.55  0.050 / 0.030
G08     92.6           51.2                5.5 +/-    0.65       6.8 +/-    0.65  0.040 / 0.030
G09     180.5          69.2                5.3 +/-    0.66       5.7 +/-    0.66  0.060 / 0.090
G11     143.5          14.7                4.9 +/-    1.80      12.3 +/-    1.80  0.080 / 0.080
G23     156.8          42.5                5.3 +/-    1.35       7.4 +/-    1.35  0.110 / 0.050
G27     55.6           32.6                3.7 +/-    1.06       6.1 +/-    1.06  0.090 / 0.060
G28     237.6          28.9                5.3 +/-    1.73       9.5 +/-    1.73  0.020 / 0.020
G30     301.9          34.5                3.1 +/-    0.80       5.0 +/-    0.80  0.030 / 0.030