PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-13:43:10
G02     204.6          29.7                8.0 +/-    2.05      14.1 +/-    2.05  0.090 / 0.250
G03     58.9           9.4                 0.4 +/-   27.69       1.3 +/-   27.69  0.100 / 0.250
G06     157.3          69.3                8.1 +/-    0.38       8.6 +/-    0.38  0.090 / 0.170
G12     308.2          18.0                4.6 +/-    1.40      10.6 +/-    1.40  0.120 / 0.110
G17     36.7           48.5                6.8 +/-    1.70       8.8 +/-    1.70  0.070 / 0.110
G19     347.2          67.1                6.6 +/-    0.69       7.1 +/-    0.69  0.070 / 0.120
G24     296.3          39.5                7.0 +/-    6.17      10.2 +/-    6.17  0.090 / 0.090
G28     101.4          32.3                7.8 +/-    0.61      13.1 +/-    0.61  0.070 / 0.080