PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/17-04:12:30
G01     313.7          26.8                5.4 +/-    2.73      10.2 +/-    2.73  0.080 / 0.150
G10     94.6           47.6                4.9 +/-    0.73       6.4 +/-    0.73  0.090 / 0.170
G11     290.2          28.7                5.0 +/-    1.38       9.0 +/-    1.38  0.030 / 0.050
G14     337.6          70.2                5.7 +/-    0.81       6.0 +/-    0.81  0.040 / 0.050
G18     110.2          22.4                4.2 +/-    1.67       8.6 +/-    1.67  0.150 / 0.170
G22     305.7          18.8                7.2 +/-    2.06      16.4 +/-    2.06  0.110 / 0.190
G25     87.0           13.0                4.7 +/-    1.25      12.3 +/-    1.25  0.090 / 0.270
G31     173.6          53.8                7.4 +/-    0.91       8.9 +/-    0.91  0.100 / 0.230
G32     22.4           60.5                4.7 +/-    0.46       5.4 +/-    0.46  0.040 / 0.050