PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/15-03:42:30
G02     247.1          78.6                5.9 +/-    0.48       6.0 +/-    0.48  0.050 / 0.040
G05     170.4          17.8                9.0 +/-    1.24      20.9 +/-    1.24  0.030 / 0.040
G06     40.3           58.9                5.0 +/-    0.45       5.7 +/-    0.45  0.070 / 0.100
G12     321.3          51.7                5.1 +/-    0.42       6.4 +/-    0.42  0.060 / 0.090
G17     70.5           24.2                5.0 +/-    2.73      10.0 +/-    2.73  0.150 / 0.200
G19     58.1           38.2                4.7 +/-    1.66       7.1 +/-    1.66  0.150 / 0.140
G24     245.0          34.4                8.3 +/-    2.09      13.3 +/-    2.09  0.040 / 0.040
G25     316.8          12.2               -0.1 +/-   24.40      -0.2 +/-   24.40  0.040 / 0.040