PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/13-04:58:00
G01     303.5          35.4                4.3 +/-    0.85       6.7 +/-    0.85  0.040 / 0.070
G10     109.3          38.5                4.3 +/-    1.11       6.5 +/-    1.11  0.040 / 0.080
G11     275.3          29.5                5.5 +/-    1.57       9.8 +/-    1.57  0.060 / 0.150
G14     8.3            64.3                2.9 +/-    1.17       3.2 +/-    1.17  0.080 / 0.130
G18     119.1          13.0                6.3 +/-    1.79      16.5 +/-    1.79  0.060 / 0.090
G22     310.8          29.1                4.4 +/-    1.35       7.8 +/-    1.35  0.050 / 0.110
G25     74.0           16.5                3.7 +/-    0.98       8.8 +/-    0.98  0.100 / 0.280
G31     164.2          68.5                7.9 +/-    1.11       8.4 +/-    1.11  0.090 / 0.270
G32     38.3           51.1                3.7 +/-    0.45       4.6 +/-    0.45  0.040 / 0.050