PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/13-12:57:50
G02     35.4           53.3                3.8 +/-    0.90       4.6 +/-    0.90  0.030 / 0.030
G05     138.6          64.6                4.5 +/-    0.41       5.0 +/-    0.41  0.040 / 0.030
G06     55.8           13.1                0.5 +/-    1.64       1.4 +/-    1.64  0.080 / 0.150
G12     193.7          63.1                4.5 +/-    0.34       5.0 +/-    0.34  0.100 / 0.140
G19     102.2          9.6                 4.8 +/-    1.83      13.6 +/-    1.83  0.050 / 0.030
G25     283.6          59.2                6.9 +/-    3.67       7.9 +/-    3.67  0.040 / 0.030
G29     310.4          31.4                4.0 +/-    1.79       6.8 +/-    1.79  0.210 / 0.240