PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-21:42:20
G02     222.4          66.4               14.4 +/-    0.77      15.6 +/-    0.77  0.030 / 0.070
G06     46.6           67.5               12.5 +/-    0.52      13.4 +/-    0.52  0.040 / 0.090
G12     320.7          43.2               12.5 +/-    1.50      17.3 +/-    1.50  0.060 / 0.110
G17     61.4           30.3               12.4 +/-    1.02      21.6 +/-    1.02  0.060 / 0.090
G19     44.5           46.7               12.3 +/-    0.49      16.1 +/-    0.49  0.050 / 0.100
G24     256.5          39.7               16.2 +/-    1.15      23.7 +/-    1.15  0.080 / 0.120