PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-05:57:50
G01     273.9          41.3                5.8 +/-    1.76       8.2 +/-    1.76  0.050 / 0.070
G03     315.0          24.9                3.5 +/-    1.99       6.8 +/-    1.99  0.050 / 0.070
G10     128.1          20.1                4.1 +/-    1.83       8.9 +/-    1.83  0.090 / 0.180
G11     250.2          22.3                5.7 +/-    0.83      11.8 +/-    0.83  0.130 / 0.220
G14     42.3           50.2                3.5 +/-    0.89       4.4 +/-    0.89  0.040 / 0.050
G22     314.5          49.8                3.6 +/-    1.20       4.5 +/-    1.20  0.050 / 0.040
G25     50.7           15.1                3.6 +/-    1.72       8.9 +/-    1.72  0.050 / 0.070
G26     151.0          22.0                3.9 +/-    3.07       8.2 +/-    3.07  0.050 / 0.060
G31     62.9           76.8                5.1 +/-    0.30       5.2 +/-    0.30  0.040 / 0.070
G32     61.1           35.2                3.9 +/-    1.39       6.1 +/-    1.39  0.050 / 0.090