PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-18:27:50
G02     4.6            72.3                7.5 +/-    0.46       7.8 +/-    0.46  0.050 / 0.060
G05     159.4          43.8                9.8 +/-    1.40      13.4 +/-    1.40  0.060 / 0.070
G06     45.6           28.8                5.6 +/-    0.74      10.0 +/-    0.74  0.110 / 0.220
G12     248.6          81.8                6.2 +/-    0.77       6.2 +/-    0.77  0.140 / 0.250
G19     82.8           23.8                9.7 +/-    0.97      19.4 +/-    0.97  0.040 / 0.030
G24     219.2          14.9               11.8 +/-    1.73      29.5 +/-    1.73  0.030 / 0.020
G25     313.9          39.2                7.8 +/-    3.03      11.5 +/-    3.03  0.030 / 0.040
G29     293.3          14.0                9.5 +/-    1.94      24.2 +/-    1.94  0.040 / 0.040