PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/23-03:43:00
G01     250.3          35.0                7.9 +/-    2.43      12.6 +/-    2.43  0.130 / 0.160
G03     315.9          42.0                5.2 +/-    0.56       7.3 +/-    0.56  0.090 / 0.200
G11     235.2          12.6                5.9 +/-    2.75      15.6 +/-    2.75  0.030 / 0.030
G14     62.0           39.2                4.3 +/-    1.90       6.3 +/-    1.90  0.030 / 0.030
G16     165.3          17.0                6.8 +/-    4.54      16.1 +/-    4.54  0.060 / 0.090
G22     304.7          65.9                6.1 +/-    0.60       6.6 +/-    0.60  0.110 / 0.110
G23     286.3          18.2                6.9 +/-    0.94      15.9 +/-    0.94  0.160 / 0.420
G26     140.1          37.0                6.7 +/-    1.54      10.3 +/-    1.54  0.120 / 0.300
G31     40.0           60.9                3.7 +/-    0.49       4.2 +/-    0.49  0.050 / 0.070
G32     76.4           25.2                5.2 +/-    2.25      10.2 +/-    2.25  0.060 / 0.090