PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/07-12:27:30
G02     234.2          72.5                3.4 +/-    0.57       3.5 +/-    0.57  0.120 / 0.290
G05     175.1          11.3               -0.8 +/-   16.41      -2.2 +/-   16.41  0.130 / 0.260
G06     41.5           60.5                3.4 +/-    0.53       3.9 +/-    0.53  0.050 / 0.090
G12     321.5          50.3                3.6 +/-    1.14       4.6 +/-    1.14  0.060 / 0.090
G17     67.1           25.1                3.3 +/-    0.98       6.5 +/-    0.98  0.040 / 0.030
G19     54.9           38.8                2.6 +/-    0.82       3.8 +/-    0.82  0.050 / 0.040
G24     250.5          36.3                5.1 +/-    0.88       7.9 +/-    0.88  0.040 / 0.060
G28     129.0          10.2                4.7 +/-    2.46      12.9 +/-    2.46  0.040 / 0.060