PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/06-18:29:00
G05     68.2           66.6                8.4 +/-    0.51       9.0 +/-    0.51  0.150 / 0.280
G12     182.7          34.3               10.9 +/-    1.67      17.4 +/-    1.67  0.140 / 0.400
G13     131.1          12.3               11.1 +/-    2.50      29.3 +/-    2.50  0.030 / 0.030
G21     267.9          14.4                9.7 +/-    1.66      24.5 +/-    1.66  0.030 / 0.040
G25     240.2          54.5                9.0 +/-    1.05      10.7 +/-    1.05  0.080 / 0.410
G29     325.1          49.7                8.6 +/-    1.05      10.9 +/-    1.05  0.080 / 0.470