PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/05-21:42:50
G02     77.6           19.4                9.1 +/-    0.95      20.4 +/-    0.95  0.030 / 0.060
G05     44.7           39.1                6.9 +/-    0.42      10.2 +/-    0.42  0.030 / 0.060
G13     106.3          30.0               10.8 +/-    0.96      19.0 +/-    0.96  0.090 / 0.140
G15     152.9          30.7               13.9 +/-    1.30      23.9 +/-    1.30  0.080 / 0.180
G20     229.1          -5.6               15.2 +/-    2.33      45.8 +/-    2.33  0.060 / 0.140
G21     290.5          30.7               11.7 +/-    1.28      20.2 +/-    1.28  0.060 / 0.130
G25     212.5          31.7               12.2 +/-    1.42      20.6 +/-    1.42  0.080 / 0.150
G26     310.1          17.0                9.4 +/-    1.75      22.4 +/-    1.75  0.090 / 0.160
G29     345.3          77.5                9.7 +/-    0.67       9.9 +/-    0.67  0.030 / 0.030