PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/03-23:57:40
G02     224.8          69.3               13.9 +/-    0.72      14.7 +/-    0.72  0.030 / 0.050
G05     174.0          10.0               -9.6 +/-   18.15     -26.9 +/-   18.15  0.030 / 0.060
G06     45.0           66.4               11.9 +/-    0.37      12.9 +/-    0.37  0.120 / 0.230
G12     320.7          43.8               12.4 +/-    0.85      17.0 +/-    0.85  0.060 / 0.100
G17     62.0           30.6               11.3 +/-    0.42      19.6 +/-    0.42  0.070 / 0.080
G19     47.4           44.9               12.1 +/-    0.43      16.4 +/-    0.43  0.030 / 0.050
G24     254.8          39.0               14.4 +/-    0.63      21.3 +/-    0.63  0.040 / 0.040