PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/11-10:58:10
G02     34.6           53.9                6.2 +/-    0.94       7.5 +/-    0.94  0.040 / 0.030
G05     139.3          63.4                9.9 +/-    0.48      10.9 +/-    0.48  0.040 / 0.030
G06     54.4           15.5                3.3 +/-    1.73       8.1 +/-    1.73  0.040 / 0.050
G12     197.3          66.1                8.9 +/-    0.26       9.7 +/-    0.26  0.030 / 0.040
G19     100.9          10.2                6.9 +/-    1.96      19.2 +/-    1.96  0.030 / 0.030
G25     285.2          59.6                9.2 +/-    2.99      10.4 +/-    2.99  0.040 / 0.020
G29     309.5          30.8                6.4 +/-    1.40      11.0 +/-    1.40  0.060 / 0.100