PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/12-23:13:10
G05     48.2           17.9                7.3 +/-    1.73      16.9 +/-    1.73  0.150 / 0.340
G10     234.9          12.5                6.3 +/-   34.19      16.5 +/-   34.19  0.150 / 0.330
G13     76.9           35.5               11.4 +/-    0.97      17.9 +/-    0.97  0.190 / 0.270
G15     125.8          51.5               12.1 +/-    1.13      14.9 +/-    1.13  0.240 / 0.180
G20     246.7          35.4               11.7 +/-    1.83      18.4 +/-    1.83  0.050 / 0.070
G21     311.6          45.3                9.7 +/-    0.80      13.0 +/-    0.80  0.040 / 0.080
G25     200.7          13.0               13.8 +/-    1.57      36.1 +/-    1.57  0.080 / 0.110
G26     289.9          20.1                7.1 +/-    0.97      15.7 +/-    0.97  0.070 / 0.100
G29     150.4          73.4               10.3 +/-    0.77      10.7 +/-    0.77  0.030 / 0.050