PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/26-14:57:30
G02     204.7          32.9                7.4 +/-    2.78      12.2 +/-    2.78  0.080 / 0.080
G06     150.2          71.7                9.0 +/-    0.88       9.4 +/-    0.88  0.070 / 0.080
G12     309.8          20.8                5.8 +/-    1.87      12.6 +/-    1.87  0.080 / 0.210
G17     38.8           46.7                7.7 +/-    0.30      10.1 +/-    0.30  0.120 / 0.220
G19     354.4          66.1                5.7 +/-    0.97       6.2 +/-    0.97  0.030 / 0.050
G24     294.8          40.0                7.2 +/-    1.23      10.5 +/-    1.23  0.040 / 0.040
G28     103.4          30.6                8.6 +/-    0.98      14.8 +/-    0.98  0.030 / 0.050