PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-12:12:30
G02     26.7           60.2                5.6 +/-    0.85       6.3 +/-    0.85  0.030 / 0.030
G05     151.5          56.3                7.2 +/-    0.48       8.5 +/-    0.48  0.030 / 0.020
G06     50.8           20.1                3.7 +/-    2.83       8.2 +/-    2.83  0.040 / 0.040
G12     206.5          73.1                5.1 +/-    0.51       5.3 +/-    0.51  0.050 / 0.040
G19     94.9           15.0                5.2 +/-    1.57      12.9 +/-    1.57  0.040 / 0.030
G25     299.1          54.6                5.2 +/-    2.06       6.2 +/-    2.06  0.030 / 0.030
G29     304.0          24.9                3.9 +/-    1.17       7.7 +/-    1.17  0.140 / 0.160