PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/31-03:43:00
G01     304.2          35.0                5.5 +/-    0.97       8.7 +/-    0.97  0.040 / 0.030
G10     108.7          38.9                5.5 +/-    0.80       8.1 +/-    0.80  0.040 / 0.020
G11     276.4          29.4                7.0 +/-    1.87      12.4 +/-    1.87  0.070 / 0.120
G14     7.0            64.7                3.8 +/-    0.79       4.2 +/-    0.79  0.080 / 0.110
G18     118.8          13.0                4.2 +/-    1.26      10.9 +/-    1.26  0.060 / 0.120
G22     310.5          28.0                4.5 +/-    1.46       8.3 +/-    1.46  0.060 / 0.090
G25     75.5           16.6                3.6 +/-    2.02       8.7 +/-    2.02  0.030 / 0.040
G31     166.7          67.2                5.8 +/-    0.38       6.2 +/-    0.38  0.030 / 0.040
G32     36.9           52.1                2.7 +/-    0.94       3.3 +/-    0.94  0.120 / 0.140