PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/28-05:58:00
G01     305.8          34.0                4.5 +/-    1.11       7.4 +/-    1.11  0.060 / 0.130
G10     106.8          40.4                5.5 +/-    0.45       7.9 +/-    0.45  0.070 / 0.120
G11     277.9          29.8                6.7 +/-    1.37      11.8 +/-    1.37  0.060 / 0.030
G14     3.5            65.6                4.6 +/-    1.20       5.0 +/-    1.20  0.070 / 0.050
G18     117.4          15.3                3.5 +/-    2.60       8.7 +/-    2.60  0.060 / 0.040
G22     310.1          27.7                0.8 +/-    1.91       1.4 +/-    1.91  0.040 / 0.020
G25     76.3           16.1                2.8 +/-    1.70       6.8 +/-    1.70  0.100 / 0.290
G31     165.7          66.2                7.3 +/-    1.89       7.9 +/-    1.89  0.100 / 0.330
G32     36.3           52.4                4.8 +/-    0.57       5.8 +/-    0.57  0.040 / 0.060