PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-02:58:10
G01     309.1          31.8                8.3 +/-    1.55      14.0 +/-    1.55  0.070 / 0.110
G10     103.7          41.4                8.4 +/-    0.83      11.9 +/-    0.83  0.090 / 0.120
G11     283.2          28.4                6.7 +/-    0.86      12.1 +/-    0.86  0.040 / 0.040
G14     349.2          68.2                6.9 +/-    0.49       7.4 +/-    0.49  0.030 / 0.040
G18     280.6          49.6                5.0 +/-    2.71       6.3 +/-    2.71  0.090 / 0.140
G20     108.6          51.7               14.0 +/-    1.04      17.2 +/-    1.04  0.110 / 0.170
G25     83.5           15.6                6.9 +/-    2.65      17.0 +/-    2.65  0.090 / 0.210
G31     164.2          64.2                9.5 +/-    1.03      10.4 +/-    1.03  0.090 / 0.180
G32     35.8           52.6                6.8 +/-    1.01       8.3 +/-    1.01  0.050 / 0.050