PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/22-01:42:50
G02     343.2          79.3                8.7 +/-    0.43       8.9 +/-    0.43  0.040 / 0.050
G05     163.7          32.8               12.1 +/-    1.62      20.1 +/-    1.62  0.040 / 0.040
G06     41.2           41.8                7.8 +/-    0.93      11.1 +/-    0.93  0.030 / 0.030
G12     313.9          69.2                9.1 +/-    0.66       9.6 +/-    0.66  0.030 / 0.030
G17     83.0           16.2                8.3 +/-    2.72      20.2 +/-    2.72  0.050 / 0.080
G19     73.0           29.1                8.5 +/-    1.37      15.1 +/-    1.37  0.050 / 0.070
G24     229.8          23.9               13.6 +/-    2.74      27.2 +/-    2.74  0.150 / 0.190
G25     317.6          26.4                9.0 +/-    1.24      17.1 +/-    1.24  0.220 / 0.200