PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/25-17:12:30
G01     313.3          27.4                7.0 +/-    1.82      13.0 +/-    1.82  0.100 / 0.180
G10     96.4           46.3                9.0 +/-    0.97      11.9 +/-    0.97  0.110 / 0.170
G11     293.1          26.2               10.4 +/-    1.80      19.7 +/-    1.80  0.030 / 0.040
G14     332.7          70.0                8.1 +/-    0.67       8.5 +/-    0.67  0.040 / 0.040
G22     306.5          19.8                6.7 +/-    1.49      14.9 +/-    1.49  0.030 / 0.040
G25     90.7           13.8               10.3 +/-    1.71      26.3 +/-    1.71  0.030 / 0.030
G31     172.4          55.6               11.3 +/-    0.54      13.4 +/-    0.54  0.070 / 0.100
G32     26.7           58.4                8.7 +/-    0.91      10.0 +/-    0.91  0.090 / 0.150