PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/31-13:43:00
G02     31.4           56.6                3.5 +/-    1.60       4.2 +/-    1.60  0.020 / 0.030
G05     146.4          61.1                7.0 +/-    1.06       7.9 +/-    1.06  0.030 / 0.030
G06     53.9           15.4                3.6 +/-    2.77       9.0 +/-    2.77  0.140 / 0.130
G12     196.0          66.8                4.3 +/-    0.70       4.6 +/-    0.70  0.270 / 0.190
G19     99.2           12.2                5.6 +/-    1.99      15.0 +/-    1.99  0.050 / 0.050
G25     291.5          57.1                3.3 +/-    1.71       3.9 +/-    1.71  0.050 / 0.040
G29     307.7          28.4                2.0 +/-    1.66       3.7 +/-    1.66  0.050 / 0.030