PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/19-10:12:30
G02     29.2           58.4                3.7 +/-    0.72       4.3 +/-    0.72  0.030 / 0.040
G05     147.7          58.2                6.4 +/-    0.49       7.4 +/-    0.49  0.030 / 0.050
G06     51.1           20.2                0.4 +/-    1.71       0.9 +/-    1.71  0.100 / 0.190
G12     207.1          72.5                4.5 +/-    0.70       4.7 +/-    0.70  0.090 / 0.180
G19     96.2           13.6                4.6 +/-    1.56      11.8 +/-    1.56  0.030 / 0.040
G25     296.1          56.4                3.2 +/-    1.21       3.8 +/-    1.21  0.030 / 0.030
G29     305.4          26.7                0.3 +/-    2.18       0.6 +/-    2.18  0.040 / 0.050