PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-05:12:40
G01     120.2          16.9                7.3 +/-    0.90      17.3 +/-    0.90  0.030 / 0.030
G07     80.5           65.8                5.9 +/-    0.42       6.4 +/-    0.42  0.030 / 0.050
G08     44.6           30.1                2.8 +/-    0.76       4.9 +/-    0.76  0.030 / 0.040
G09     174.8          24.5                7.4 +/-    1.59      14.7 +/-    1.59  0.030 / 0.030
G11     106.2          39.7                6.9 +/-    0.64      10.0 +/-    0.64  0.110 / 0.300
G13     318.1          18.8                3.9 +/-    1.94       8.8 +/-    1.94  0.120 / 0.330
G17     200.3          25.6                6.2 +/-    1.86      11.9 +/-    1.86  0.060 / 0.140
G28     287.7          55.7                5.3 +/-    0.85       6.2 +/-    0.85  0.060 / 0.110
G30     341.1          66.4                3.8 +/-    0.56       4.1 +/-    0.56  0.050 / 0.060