PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-05:27:50
G01     255.6          37.3                8.9 +/-    1.80      13.6 +/-    1.80  0.040 / 0.040
G03     316.4          38.6                3.4 +/-    1.67       5.1 +/-    1.67  0.040 / 0.040
G11     239.5          14.1                7.6 +/-    1.54      19.3 +/-    1.54  0.090 / 0.120
G14     55.1           44.2                6.6 +/-    1.80       9.0 +/-    1.80  0.070 / 0.080
G18     223.4          30.4                7.3 +/-    2.24      12.7 +/-    2.24  0.140 / 0.450
G22     308.7          62.0                6.1 +/-    0.68       6.9 +/-    0.68  0.120 / 0.340
G25     42.1           11.6                3.9 +/-    2.48      10.4 +/-    2.48  0.060 / 0.080
G26     136.9          35.7                6.5 +/-    0.71      10.1 +/-    0.71  0.050 / 0.080
G31     42.5           59.9                5.6 +/-    0.82       6.3 +/-    0.82  0.130 / 0.220
G32     75.0           23.6                6.0 +/-    2.20      12.0 +/-    2.20  0.200 / 0.230