PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-20:43:00
G10     275.1          42.8               10.2 +/-    1.54      14.2 +/-    1.54  0.040 / 0.040
G13     39.1           12.4                9.0 +/-    3.73      23.7 +/-    3.73  0.030 / 0.040
G15     55.4           47.7               10.9 +/-    0.94      14.2 +/-    0.94  0.100 / 0.150
G20     312.2          63.1               10.2 +/-    0.85      11.3 +/-    0.85  0.090 / 0.110
G21     25.6           75.6               11.7 +/-    0.73      12.1 +/-    0.73  0.090 / 0.170
G24     111.5          18.5               12.8 +/-    2.43      29.3 +/-    2.43  0.120 / 0.160
G27     315.5          23.2                9.8 +/-    1.39      20.0 +/-    1.39  0.100 / 0.310
G29     168.5          24.2               13.6 +/-    1.44      27.2 +/-    1.44  0.180 / 0.300
G32     205.2          16.5               14.2 +/-    2.48      34.1 +/-    2.48  0.040 / 0.040