PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-21:12:30
G02     205.3          41.2               15.2 +/-    1.17      21.7 +/-    1.17  0.270 / 0.270
G06     141.9          75.6               12.9 +/-    0.83      13.2 +/-    0.83  0.140 / 0.170
G12     311.2          21.1               12.3 +/-    3.33      26.3 +/-    3.33  0.050 / 0.080
G17     39.5           46.8               10.7 +/-    1.48      14.1 +/-    1.48  0.070 / 0.070
G19     9.7            62.4               11.5 +/-    0.72      12.8 +/-    0.72  0.020 / 0.020
G24     290.2          40.9               11.8 +/-    7.74      16.9 +/-    7.74  0.030 / 0.020
G28     108.3          26.9               11.4 +/-    1.72      21.4 +/-    1.72  0.050 / 0.040