PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/02-10:27:30
G01     315.5          24.6                5.8 +/-    2.55      11.3 +/-    2.55  0.040 / 0.060
G10     91.8           48.4                6.7 +/-    0.34       8.7 +/-    0.34  0.040 / 0.050
G11     296.3          25.4                5.4 +/-    2.38      10.5 +/-    2.38  0.140 / 0.330
G14     311.3          69.7                4.3 +/-    0.58       4.5 +/-    0.58  0.120 / 0.460
G18     296.2          44.9                5.9 +/-    1.22       7.9 +/-    1.22  0.080 / 0.200
G22     306.1          21.3                4.2 +/-    3.21       9.0 +/-    3.21  0.090 / 0.180
G25     94.5           12.2                4.3 +/-    1.48      11.3 +/-    1.48  0.030 / 0.040
G31     171.1          53.3                6.4 +/-    1.00       7.7 +/-    1.00  0.030 / 0.050
G32     24.2           60.0                5.6 +/-    0.46       6.4 +/-    0.46  0.120 / 0.200