PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/13-12:57:50
G01     117.3          19.0                5.9 +/-    1.05      13.3 +/-    1.05  0.110 / 0.140
G07     88.8           62.9                4.6 +/-    0.44       5.1 +/-    0.44  0.140 / 0.210
G08     43.9           28.1                3.8 +/-    1.35       7.0 +/-    1.35  0.030 / 0.030
G09     175.0          22.2                4.7 +/-    0.99       9.9 +/-    0.99  0.030 / 0.030
G11     101.5          39.0                4.6 +/-    0.75       6.8 +/-    0.75  0.030 / 0.030
G13     317.9          18.9                3.0 +/-    1.61       6.7 +/-    1.61  0.040 / 0.030
G17     201.4          28.8                4.0 +/-    1.83       7.2 +/-    1.83  0.090 / 0.190
G28     296.4          57.9                2.7 +/-    1.15       3.1 +/-    1.15  0.110 / 0.230
G30     345.7          68.2                3.0 +/-    0.29       3.2 +/-    0.29  0.120 / 0.150