PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/26-14:27:30
G02     201.6          19.4                8.1 +/-    1.34      18.2 +/-    1.34  0.150 / 0.320
G06     166.6          57.5                7.5 +/-    0.64       8.8 +/-    0.64  0.160 / 0.330
G12     301.9          10.8               -8.5 +/-   10.43     -23.4 +/-   10.43  0.100 / 0.120
G13     225.7          12.0                5.2 +/-    2.72      13.8 +/-    2.72  0.090 / 0.100
G17     26.1           57.1                7.7 +/-    1.06       9.0 +/-    1.06  0.080 / 0.330
G19     315.2          70.1                5.8 +/-    0.67       6.1 +/-    0.67  0.090 / 0.340
G24     307.8          32.3                6.0 +/-    1.84      10.1 +/-    1.84  0.090 / 0.360
G28     89.4           39.0                7.7 +/-    1.11      11.4 +/-    1.11  0.050 / 0.050
G30     158.0          14.8                9.0 +/-    1.26      22.4 +/-    1.26  0.050 / 0.040