PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-14:43:10
G02     46.5           43.7                9.5 +/-    1.40      13.1 +/-    1.40  0.020 / 0.020
G05     106.9          70.1               12.1 +/-    0.55      12.8 +/-    0.55  0.030 / 0.020
G12     191.1          52.4               14.9 +/-    0.68      18.3 +/-    0.68  0.050 / 0.080
G20     201.7          40.2               14.8 +/-    0.99      21.4 +/-    0.99  0.070 / 0.070
G25     267.3          58.9               12.1 +/-    1.42      13.8 +/-    1.42  0.030 / 0.030
G29     320.9          44.8                8.4 +/-    0.76      11.3 +/-    0.76  0.030 / 0.040