PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/24-11:27:50
G01     81.7           32.3                3.9 +/-    0.75       6.5 +/-    0.75  0.050 / 0.070
G07     130.4          37.8                6.2 +/-    0.68       9.4 +/-    0.68  0.030 / 0.070
G11     62.4           38.4                4.6 +/-    1.56       6.9 +/-    1.56  0.040 / 0.050
G13     286.4          38.6               -0.9 +/-    2.14      -1.3 +/-    2.14  0.060 / 0.060
G15     311.6          11.8                2.9 +/-    1.81       7.7 +/-    1.81  0.150 / 0.110
G17     218.5          55.8                6.5 +/-    0.98       7.7 +/-    0.98  0.080 / 0.130
G18     57.1           22.1                3.2 +/-    1.91       6.7 +/-    1.91  0.190 / 0.310
G19     216.5          34.3                6.4 +/-    1.56      10.3 +/-    1.56  0.190 / 0.250
G28     345.8          61.5                3.6 +/-    0.76       4.1 +/-    0.76  0.080 / 0.240
G30     120.2          72.2                6.0 +/-    0.44       6.3 +/-    0.44  0.100 / 0.210