PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-07:43:10
G01     255.1          37.1                7.4 +/-    2.04      11.3 +/-    2.04  0.040 / 0.030
G03     316.4          40.1                3.8 +/-    1.94       5.5 +/-    1.94  0.040 / 0.030
G11     239.8          14.0                5.1 +/-    1.46      13.1 +/-    1.46  0.130 / 0.390
G14     54.4           45.0                5.0 +/-    0.71       6.7 +/-    0.71  0.120 / 0.380
G18     223.5          30.2                5.1 +/-    2.25       8.9 +/-    2.25  0.080 / 0.110
G22     307.7          64.4                3.8 +/-    0.86       4.2 +/-    0.86  0.060 / 0.060
G25     42.2           11.8                3.4 +/-    1.36       9.2 +/-    1.36  0.050 / 0.080
G26     136.6          36.1                5.9 +/-    1.31       9.2 +/-    1.31  0.060 / 0.070
G31     42.3           59.4                4.5 +/-    0.63       5.1 +/-    0.63  0.200 / 0.190
G32     75.4           23.4                4.6 +/-    1.83       9.4 +/-    1.83  0.200 / 0.300