PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-12:12:50
G01     50.8           25.8                4.4 +/-    0.77       8.5 +/-    0.77  0.100 / 0.300
G06     178.9          23.2                5.6 +/-    1.26      11.4 +/-    1.26  0.110 / 0.240
G07     145.7          11.5                2.8 +/-    3.01       7.5 +/-    3.01  0.040 / 0.060
G11     44.5           14.1                2.4 +/-    2.52       6.0 +/-    2.52  0.050 / 0.060
G13     253.8          30.8                7.1 +/-    1.50      12.3 +/-    1.50  0.150 / 0.440
G15     285.7          15.8                5.1 +/-    1.17      12.5 +/-    1.17  0.190 / 0.350
G17     323.1          79.0                5.1 +/-    0.60       5.2 +/-    0.60  0.090 / 0.110
G19     246.8          61.2                6.6 +/-    0.55       7.4 +/-    0.55  0.090 / 0.160
G28     51.8           52.9                2.8 +/-    0.55       3.4 +/-    0.55  0.030 / 0.030
G30     149.2          43.5                5.6 +/-    1.70       7.8 +/-    1.70  0.030 / 0.030