PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/12-01:57:50
G10     246.7          24.8               10.6 +/-    0.92      20.7 +/-    0.92  0.140 / 0.170
G13     57.4           31.3                6.9 +/-    2.29      11.8 +/-    2.29  0.150 / 0.160
G15     93.8           57.4                8.5 +/-    1.21       9.9 +/-    1.21  0.030 / 0.040
G16     302.0          14.8                3.5 +/-    1.86       8.7 +/-    1.86  0.050 / 0.050
G20     264.2          47.7                9.7 +/-    2.62      12.6 +/-    2.62  0.090 / 0.390
G21     329.0          56.9                7.6 +/-    0.43       8.9 +/-    0.43  0.090 / 0.380
G26     273.7          17.0                7.9 +/-    3.03      18.6 +/-    3.03  0.060 / 0.120
G29     160.8          53.2                9.5 +/-    0.41      11.5 +/-    0.41  0.050 / 0.110