PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-22:27:50
G01     56.2           28.9                7.8 +/-    0.80      14.0 +/-    0.80  0.080 / 0.320
G06     181.5          14.9               -3.7 +/-   37.94      -9.3 +/-   37.94  0.100 / 0.240
G07     142.9          14.2                9.9 +/-    1.66      25.1 +/-    1.66  0.040 / 0.040
G11     46.1           20.0                7.9 +/-    2.12      17.4 +/-    2.12  0.040 / 0.040
G13     257.6          34.5               12.3 +/-    1.41      19.7 +/-    1.41  0.080 / 0.080
G15     289.8          16.5                9.2 +/-    1.20      22.1 +/-    1.20  0.090 / 0.070
G17     279.7          79.4                9.0 +/-    0.86       9.1 +/-    0.86  0.060 / 0.090
G19     235.8          53.7               10.3 +/-    1.70      12.4 +/-    1.70  0.070 / 0.100
G28     34.9           57.6                8.6 +/-    0.75      10.0 +/-    0.75  0.040 / 0.050
G30     145.8          47.9               10.3 +/-    0.52      13.3 +/-    0.52  0.040 / 0.040