PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-15:12:30
G02     204.4          32.4               11.2 +/-    1.14      18.7 +/-    1.14  0.090 / 0.170
G06     151.7          71.1               10.6 +/-    1.01      11.2 +/-    1.01  0.100 / 0.200
G12     309.4          20.2                7.9 +/-    1.63      17.3 +/-    1.63  0.060 / 0.090
G17     38.1           47.3                8.7 +/-    0.63      11.4 +/-    0.63  0.070 / 0.080
G19     353.2          66.4                7.1 +/-    1.28       7.7 +/-    1.28  0.090 / 0.130
G24     295.6          39.7                9.9 +/-    1.42      14.5 +/-    1.42  0.080 / 0.120
G28     102.8          31.0               10.9 +/-    1.05      18.7 +/-    1.05  0.030 / 0.040