PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-17:58:00
G02     49.5           42.3               10.2 +/-    1.00      14.4 +/-    1.00  0.050 / 0.080
G05     80.9           69.4               10.4 +/-    0.37      11.1 +/-    0.37  0.040 / 0.070
G12     183.7          39.6               15.5 +/-    1.93      22.7 +/-    1.93  0.030 / 0.030
G21     264.4          11.6               13.5 +/-    2.55      36.3 +/-    2.55  0.030 / 0.040
G25     248.3          57.0               12.2 +/-    0.53      14.3 +/-    0.53  0.040 / 0.080
G29     322.1          45.5                8.9 +/-    1.19      11.8 +/-    1.19  0.030 / 0.070