PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/23-00:43:00
G10     260.3          34.0               10.8 +/-    1.52      17.4 +/-    1.52  0.110 / 0.150
G13     45.4           23.0                5.9 +/-    0.98      12.1 +/-    0.98  0.090 / 0.210
G15     70.2           55.2                7.5 +/-    0.67       8.9 +/-    0.67  0.120 / 0.340
G16     283.8          14.2                9.0 +/-    1.32      22.8 +/-    1.32  0.110 / 0.290
G20     270.1          41.0               11.2 +/-    1.00      16.0 +/-    1.00  0.160 / 0.310
G21     347.2          67.0                6.6 +/-    0.84       7.1 +/-    0.84  0.130 / 0.330
G24     124.5          10.5               -3.0 +/-   41.02      -8.3 +/-   41.02  0.090 / 0.150
G26     256.7          10.9               11.3 +/-    1.67      31.0 +/-    1.67  0.090 / 0.120
G27     321.1          13.5                7.9 +/-    2.16      20.2 +/-    2.16  0.040 / 0.050
G29     167.5          39.2               11.5 +/-    1.10      16.9 +/-    1.10  0.040 / 0.060