PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-15:57:40
G02     218.2          58.8                9.7 +/-    0.71      11.1 +/-    0.71  0.090 / 0.080
G06     52.0           70.3               10.4 +/-    0.96      11.0 +/-    0.96  0.070 / 0.090
G12     320.7          42.7                9.2 +/-    1.53      12.8 +/-    1.53  0.040 / 0.040
G17     59.9           29.6                8.9 +/-    0.56      15.6 +/-    0.56  0.030 / 0.040
G19     37.2           50.9                8.1 +/-    0.31      10.2 +/-    0.31  0.060 / 0.060
G24     260.4          41.4               10.8 +/-    1.65      15.3 +/-    1.65  0.090 / 0.070
G28     123.7          12.5                8.6 +/-    2.21      22.8 +/-    2.21  0.040 / 0.050