PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/06-16:27:50
G02     55.0           37.4                6.6 +/-    0.90      10.0 +/-    0.90  0.040 / 0.070
G05     68.9           67.6                7.2 +/-    0.54       7.7 +/-    0.54  0.040 / 0.060
G12     183.7          34.7                9.0 +/-    2.22      14.4 +/-    2.22  0.110 / 0.340
G13     130.4          12.9                9.8 +/-    2.12      25.6 +/-    2.12  0.130 / 0.410
G21     268.9          15.5                2.9 +/-    2.42       7.2 +/-    2.42  0.090 / 0.410
G25     236.9          53.8                8.1 +/-    0.72       9.8 +/-    0.72  0.090 / 0.450
G29     326.0          50.9                7.0 +/-    0.72       8.8 +/-    0.72  0.070 / 0.120