PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/30-04:27:50
G01     281.8          41.3                6.3 +/-    1.09       9.0 +/-    1.09  0.060 / 0.090
G03     313.6          20.2                5.9 +/-    2.42      12.9 +/-    2.42  0.050 / 0.090
G10     124.5          24.5                5.9 +/-    1.03      11.6 +/-    1.03  0.050 / 0.050
G11     256.0          24.7                8.8 +/-    1.98      17.3 +/-    1.98  0.040 / 0.060
G14     35.5           53.7                5.6 +/-    0.46       6.7 +/-    0.46  0.040 / 0.060
G22     314.5          44.1                4.7 +/-    1.22       6.4 +/-    1.22  0.040 / 0.090
G25     56.7           16.8                5.4 +/-    0.56      12.8 +/-    0.56  0.180 / 0.340
G26     154.9          17.1                7.4 +/-    1.40      17.6 +/-    1.40  0.170 / 0.270
G31     94.9           80.7                6.6 +/-    0.84       6.7 +/-    0.84  0.060 / 0.080
G32     55.5           39.4                4.6 +/-    0.63       6.7 +/-    0.63  0.060 / 0.060