PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-09:58:10
G01     222.4          13.1                2.8 +/-    4.08       7.2 +/-    4.08  0.140 / 0.200
G03     270.5          69.8                4.2 +/-    0.74       4.5 +/-    0.74  0.120 / 0.210
G09     297.8          12.2                1.2 +/-   12.89       3.1 +/-   12.89  0.040 / 0.030
G14     90.3           23.4                4.1 +/-    1.69       8.4 +/-    1.69  0.050 / 0.040
G16     137.6          51.5                5.8 +/-    0.56       7.2 +/-    0.56  0.180 / 0.780
G22     201.5          64.5                4.0 +/-    1.36       4.4 +/-    1.36  0.160 / 0.620
G23     313.1          43.4                4.7 +/-    1.04       6.5 +/-    1.04  0.040 / 0.080
G26     83.0           53.4                5.5 +/-    0.88       6.7 +/-    0.88  0.040 / 0.110
G31     48.2           25.3                3.7 +/-    2.30       7.1 +/-    2.30  0.220 / 0.340