PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/06-19:42:40
G02     34.5           54.3                8.5 +/-    0.56      10.2 +/-    0.56  0.020 / 0.040
G05     132.3          65.1               11.1 +/-    1.05      12.1 +/-    1.05  0.030 / 0.040
G06     56.5           11.2                7.7 +/-    2.03      20.8 +/-    2.03  0.050 / 0.050
G12     188.2          60.5                9.7 +/-    0.94      11.0 +/-    0.94  0.030 / 0.050
G19     102.0          10.1                7.9 +/-    2.02      21.9 +/-    2.02  0.030 / 0.060
G25     290.0          56.2                7.8 +/-    1.25       9.2 +/-    1.25  0.030 / 0.050
G29     309.3          29.6                8.1 +/-    0.99      14.3 +/-    0.99  0.030 / 0.060