PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/14-11:58:10
G01     310.6          30.4                4.9 +/-    1.03       8.5 +/-    1.03  0.040 / 0.050
G10     101.5          43.2                6.1 +/-    0.35       8.4 +/-    0.35  0.040 / 0.040
G11     288.5          26.9                1.8 +/-    1.98       3.3 +/-    1.98  0.160 / 0.130
G14     336.5          69.0                4.4 +/-    0.48       4.7 +/-    0.48  0.140 / 0.080
G18     285.3          48.2               15.3 +/-    2.64      19.8 +/-    2.64  0.120 / 0.180
G22     309.3          26.9                3.5 +/-    1.70       6.6 +/-    1.70  0.120 / 0.150
G25     87.1           15.4                4.0 +/-    1.91      10.0 +/-    1.91  0.090 / 0.040
G31     166.7          61.9                7.6 +/-    0.37       8.5 +/-    0.37  0.080 / 0.040
G32     33.3           54.3                2.8 +/-    1.40       3.3 +/-    1.40  0.090 / 0.180