PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-18:43:10
G10     248.2          26.5               11.1 +/-    1.23      20.9 +/-    1.23  0.040 / 0.060
G13     55.5           30.1                7.7 +/-    0.96      13.5 +/-    0.96  0.040 / 0.060
G15     91.6           57.8                9.2 +/-    0.83      10.7 +/-    0.83  0.160 / 0.740
G16     297.9          15.9                8.0 +/-    3.91      19.5 +/-    3.91  0.160 / 0.660
G20     267.6          50.2                9.9 +/-    0.81      12.5 +/-    0.81  0.050 / 0.160
G21     330.3          57.6                8.9 +/-    0.76      10.3 +/-    0.76  0.070 / 0.170
G26     270.7          16.5               11.0 +/-    2.41      26.3 +/-    2.41  0.040 / 0.040
G29     162.8          54.0               12.5 +/-    0.90      15.0 +/-    0.90  0.030 / 0.050