PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-04:57:50
G07     332.4          57.6                2.4 +/-    0.85       2.8 +/-    0.85  0.070 / 0.170
G08     99.7           51.2                5.0 +/-    0.54       6.2 +/-    0.54  0.060 / 0.210
G09     193.0          75.1                4.9 +/-    0.52       5.0 +/-    0.52  0.030 / 0.040
G11     146.2          11.9                7.5 +/-    3.74      20.1 +/-    3.74  0.030 / 0.050
G16     45.6           14.0                1.4 +/-    1.28       3.5 +/-    1.28  0.080 / 0.230
G23     155.4          44.7                7.0 +/-    0.60       9.4 +/-    0.60  0.080 / 0.220
G27     55.6           31.6                3.8 +/-    0.79       6.5 +/-    0.79  0.030 / 0.060
G28     236.5          29.1                4.5 +/-    2.65       7.9 +/-    2.65  0.030 / 0.070
G30     301.0          34.4                2.8 +/-    1.18       4.5 +/-    1.18  0.030 / 0.030