PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/29-08:42:40
G01     89.3           31.9                6.1 +/-    0.86      10.2 +/-    0.86  0.070 / 0.060
G07     126.2          43.6                7.3 +/-    1.11      10.0 +/-    1.11  0.060 / 0.070
G11     67.6           38.4                3.8 +/-    0.58       5.7 +/-    0.58  0.050 / 0.040
G13     295.6          35.1                4.4 +/-    1.89       7.0 +/-    1.89  0.060 / 0.060
G15     315.2          10.2               -9.8 +/-    7.44     -27.2 +/-    7.44  0.080 / 0.210
G17     214.8          56.3                5.8 +/-    1.57       6.9 +/-    1.57  0.180 / 0.350
G19     214.8          29.2                4.6 +/-    1.80       8.1 +/-    1.80  0.050 / 0.070
G28     351.7          61.6                3.0 +/-    0.92       3.4 +/-    0.92  0.050 / 0.050
G30     104.6          75.6                4.7 +/-    0.42       4.8 +/-    0.42  0.080 / 0.110