PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/27-14:28:10
G02     257.9          77.0                5.4 +/-    0.74       5.5 +/-    0.74  0.170 / 0.350
G05     171.9          19.7                7.1 +/-    2.09      15.7 +/-    2.09  0.140 / 0.360
G06     40.0           51.0                4.1 +/-    0.47       5.1 +/-    0.47  0.030 / 0.040
G12     321.3          61.5                6.2 +/-    2.15       7.0 +/-    2.15  0.030 / 0.040
G17     77.0           17.0                5.4 +/-    0.97      12.7 +/-    0.97  0.090 / 0.110
G19     60.3           38.2                5.1 +/-    1.02       7.6 +/-    1.02  0.060 / 0.140
G24     235.6          30.4                7.1 +/-    1.55      12.3 +/-    1.55  0.040 / 0.040
G25     317.4          20.3                4.2 +/-    2.17       9.3 +/-    2.17  0.040 / 0.070