PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/19-15:12:50
G01     317.5          21.2                6.8 +/-    3.30      14.6 +/-    3.30  0.090 / 0.290
G08     256.4          11.1                6.3 +/-    3.41      17.1 +/-    3.41  0.110 / 0.320
G10     85.6           51.3                6.3 +/-    1.18       7.8 +/-    1.18  0.060 / 0.050
G11     301.8          23.0                5.9 +/-    1.21      12.2 +/-    1.21  0.030 / 0.050
G14     305.5          70.4                6.0 +/-    0.38       6.4 +/-    0.38  0.210 / 0.430
G22     303.0          14.8                3.9 +/-    2.79       9.7 +/-    2.79  0.230 / 0.340
G25     98.3           10.3                4.6 +/-   31.28      12.8 +/-   31.28  0.030 / 0.040
G31     174.3          47.3                9.5 +/-    0.48      12.4 +/-    0.48  0.040 / 0.050
G32     16.3           63.9                6.2 +/-    0.60       6.8 +/-    0.60  0.040 / 0.040