PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-10:27:50
G01     257.2          37.8                6.7 +/-    2.14      10.1 +/-    2.14  0.040 / 0.070
G03     316.6          40.0                3.6 +/-    2.12       5.2 +/-    2.12  0.050 / 0.100
G11     242.1          15.0                7.0 +/-    1.85      17.4 +/-    1.85  0.070 / 0.080
G14     51.0           47.3                4.1 +/-    0.82       5.3 +/-    0.82  0.050 / 0.090
G18     225.4          31.6                5.5 +/-    3.58       9.3 +/-    3.58  0.030 / 0.030
G22     308.5          65.2                4.7 +/-    0.58       5.1 +/-    0.58  0.030 / 0.030
G25     43.9           13.0                1.9 +/-    2.34       4.8 +/-    2.34  0.130 / 0.430
G26     138.2          34.7               -8.9 +/-   28.65     -14.3 +/-   28.65  0.120 / 0.410
G31     43.0           61.1                4.2 +/-    0.57       4.7 +/-    0.57  0.080 / 0.150
G32     74.0           24.4                4.8 +/-    1.07       9.5 +/-    1.07  0.160 / 0.200