PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/10-14:27:20
G02     45.3           44.8                2.9 +/-    0.36       4.0 +/-    0.36  0.030 / 0.030
G05     111.9          69.7                7.2 +/-    0.58       7.7 +/-    0.58  0.040 / 0.030
G12     191.9          54.4                8.4 +/-    1.69      10.1 +/-    1.69  0.030 / 0.040
G20     201.3          38.3                8.2 +/-    0.68      12.3 +/-    0.68  0.060 / 0.060
G25     271.1          58.9                6.7 +/-    1.20       7.7 +/-    1.20  0.060 / 0.100
G29     319.6          43.3                4.7 +/-    1.40       6.6 +/-    1.40  0.050 / 0.090