PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/17-01:27:50
G01     271.7          41.0                5.3 +/-    0.89       7.6 +/-    0.89  0.040 / 0.060
G03     315.4          27.1                3.3 +/-    1.17       6.2 +/-    1.17  0.040 / 0.050
G10     129.3          18.4                5.9 +/-    1.29      13.6 +/-    1.29  0.050 / 0.090
G11     250.0          21.2                6.6 +/-    1.46      14.1 +/-    1.46  0.050 / 0.080
G14     43.9           49.5                2.8 +/-    0.68       3.6 +/-    0.68  0.020 / 0.030
G22     314.2          50.0                3.7 +/-    1.06       4.7 +/-    1.06  0.030 / 0.030
G25     51.4           16.0                3.2 +/-    1.56       7.7 +/-    1.56  0.140 / 0.340
G26     152.8          22.2                6.6 +/-    1.18      13.7 +/-    1.18  0.100 / 0.330
G31     63.5           78.9                4.3 +/-    0.70       4.4 +/-    0.70  0.040 / 0.060
G32     61.7           35.5                2.9 +/-    0.47       4.5 +/-    0.47  0.050 / 0.080