PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-11:58:00
G01     257.3          37.8                5.5 +/-    1.42       8.3 +/-    1.42  0.040 / 0.090
G03     316.6          40.9                4.8 +/-    1.28       6.8 +/-    1.28  0.040 / 0.080
G11     242.7          15.1                4.1 +/-    1.72      10.1 +/-    1.72  0.040 / 0.040
G14     50.9           47.4                2.5 +/-    0.53       3.3 +/-    0.53  0.030 / 0.040
G18     225.6          31.7                5.2 +/-    1.32       8.8 +/-    1.32  0.110 / 0.120
G22     308.0          66.7                3.6 +/-    0.69       3.9 +/-    0.69  0.080 / 0.130
G25     44.1           13.2                2.6 +/-    1.51       6.9 +/-    1.51  0.130 / 0.310
G26     138.4          34.6               -4.6 +/-   28.31      -7.3 +/-   28.31  0.120 / 0.300
G31     42.9           61.2                4.1 +/-    0.38       4.6 +/-    0.38  0.070 / 0.100
G32     74.0           24.5                3.7 +/-    1.21       7.4 +/-    1.21  0.060 / 0.090