PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/07-15:27:50
G01     120.1          16.2               10.4 +/-    0.97      25.0 +/-    0.97  0.030 / 0.040
G07     84.2           63.3               11.1 +/-    0.81      12.2 +/-    0.81  0.030 / 0.030
G08     46.2           34.2                8.0 +/-    0.33      12.9 +/-    0.33  0.060 / 0.070
G09     177.9          29.5               11.4 +/-    0.96      20.1 +/-    0.96  0.050 / 0.080
G11     108.6          39.9               11.2 +/-    0.75      16.4 +/-    0.75  0.050 / 0.100
G13     318.2          18.8                9.9 +/-    2.59      22.4 +/-    2.59  0.050 / 0.090
G17     201.0          21.2               12.4 +/-    2.09      26.4 +/-    2.09  0.090 / 0.250
G18     94.8           20.0                7.1 +/-    9.89      15.7 +/-    9.89  0.080 / 0.230
G28     281.6          52.8               12.1 +/-    1.45      14.7 +/-    1.45  0.080 / 0.190
G30     350.8          69.6                8.8 +/-    0.83       9.4 +/-    0.83  0.100 / 0.150