PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-13:28:10
G02     212.6          50.0                7.5 +/-    1.44       9.5 +/-    1.44  0.090 / 0.190
G06     78.3           78.0                4.3 +/-    0.49       4.4 +/-    0.49  0.130 / 0.210
G12     317.1          33.1                3.7 +/-    2.01       6.1 +/-    2.01  0.070 / 0.090
G17     53.3           34.8                4.3 +/-    0.97       6.8 +/-    0.97  0.040 / 0.100
G19     25.3           56.4                4.9 +/-    0.98       5.8 +/-    0.98  0.050 / 0.080
G24     270.3          43.3                3.5 +/-    0.84       4.8 +/-    0.84  0.080 / 0.060
G28     117.9          19.2                7.1 +/-    0.98      16.1 +/-    0.98  0.030 / 0.030