PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/08-14:27:40
G02     42.2           47.6                8.7 +/-    0.88      11.3 +/-    0.88  0.030 / 0.030
G05     123.3          68.2               13.0 +/-    0.38      13.9 +/-    0.38  0.030 / 0.030
G06     58.3           12.1                6.8 +/-    1.90      18.2 +/-    1.90  0.030 / 0.040
G12     193.8          58.4               10.3 +/-    0.61      11.8 +/-    0.61  0.030 / 0.040
G20     200.4          34.6               11.6 +/-    1.66      18.6 +/-    1.66  0.100 / 0.100
G25     278.8          58.4                1.4 +/-    0.58       1.7 +/-    0.58  0.110 / 0.090
G29     317.1          40.4                5.7 +/-    1.92       8.3 +/-    1.92  0.050 / 0.040