PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/15-00:12:40
G01     61.9           31.1               11.1 +/-    1.05      19.0 +/-    1.05  0.060 / 0.070
G06     181.2          12.9               15.4 +/-    3.00      40.4 +/-    3.00  0.060 / 0.090
G07     141.6          24.1               13.8 +/-    1.34      27.4 +/-    1.34  0.030 / 0.030
G11     50.3           27.3                8.6 +/-    2.51      16.0 +/-    2.51  0.030 / 0.020
G13     265.2          35.6               13.9 +/-    1.29      21.8 +/-    1.29  0.040 / 0.050
G15     294.8          16.6               10.5 +/-    1.42      25.2 +/-    1.42  0.030 / 0.050
G17     249.2          72.6               13.0 +/-    0.68      13.5 +/-    0.68  0.380 / 0.430
G19     231.2          49.2               13.7 +/-    2.65      17.4 +/-    2.65  0.290 / 0.330
G28     34.1           56.9               12.7 +/-    0.82      14.8 +/-    0.82  0.090 / 0.120
G30     141.9          50.6               15.3 +/-    0.56      19.1 +/-    0.56  0.090 / 0.160