PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-12:42:40
G02     39.5           49.9                4.8 +/-    0.29       6.1 +/-    0.29  0.040 / 0.040
G05     128.1          67.7                7.4 +/-    0.67       8.0 +/-    0.67  0.050 / 0.050
G06     58.2           10.3                3.5 +/-    2.20       9.7 +/-    2.20  0.050 / 0.030
G12     191.2          58.5                6.5 +/-    1.84       7.4 +/-    1.84  0.040 / 0.040
G25     273.8          60.5                6.1 +/-    0.81       6.9 +/-    0.81  0.060 / 0.100
G29     313.4          34.9                4.6 +/-    1.40       7.2 +/-    1.40  0.060 / 0.110