PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/12-12:42:30
G02     27.0           60.0                3.1 +/-    0.92       3.5 +/-    0.92  0.030 / 0.030
G05     151.4          56.7                4.9 +/-    0.57       5.7 +/-    0.57  0.030 / 0.020
G06     51.2           19.5                1.6 +/-    2.40       3.5 +/-    2.40  0.030 / 0.040
G12     204.4          72.4                2.3 +/-    0.66       2.4 +/-    0.66  0.060 / 0.050
G19     95.3           14.8                3.7 +/-    1.42       9.2 +/-    1.42  0.120 / 0.240
G25     298.6          54.7                1.7 +/-    2.92       2.0 +/-    2.92  0.120 / 0.250
G29     304.4          25.2                2.6 +/-    1.10       5.1 +/-    1.10  0.130 / 0.230