PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/09-16:13:00
G02     325.4          78.7                8.3 +/-    0.56       8.4 +/-    0.56  0.120 / 0.210
G05     166.0          33.4               10.3 +/-    0.78      16.9 +/-    0.78  0.100 / 0.190
G06     42.2           37.7                6.3 +/-    0.57       9.5 +/-    0.57  0.040 / 0.120
G12     305.3          76.5                8.5 +/-    0.82       8.7 +/-    0.82  0.040 / 0.100
G19     73.8           30.2                8.0 +/-    0.72      14.0 +/-    0.72  0.030 / 0.030
G24     224.9          21.0               10.3 +/-    2.61      22.2 +/-    2.61  0.030 / 0.030
G25     316.6          32.1                8.0 +/-    1.02      13.4 +/-    1.02  0.070 / 0.100