PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-23:27:50
G10     263.4          36.1               16.6 +/-    1.59      25.8 +/-    1.59  0.160 / 0.290
G13     43.6           20.8                9.6 +/-    1.04      20.7 +/-    1.04  0.140 / 0.250
G15     66.4           54.1               12.0 +/-    0.50      14.5 +/-    0.50  0.050 / 0.050
G16     280.6          13.5               13.5 +/-    1.50      34.9 +/-    1.50  0.040 / 0.040
G20     267.3          32.5               10.0 +/-    1.08      16.6 +/-    1.08  0.110 / 0.330
G21     352.4          69.0               11.9 +/-    1.02      12.7 +/-    1.02  0.100 / 0.320
G24     121.7          12.4               13.2 +/-    2.21      35.1 +/-    2.21  0.100 / 0.380
G27     320.2          15.9               10.4 +/-    2.54      25.3 +/-    2.54  0.120 / 0.460
G29     168.0          36.0               12.6 +/-    0.99      19.6 +/-    0.99  0.070 / 0.240