PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-02:28:10
G01     314.3          26.1                7.6 +/-    2.30      14.5 +/-    2.30  0.040 / 0.030
G10     93.6           48.0                9.5 +/-    0.80      12.3 +/-    0.80  0.050 / 0.040
G11     291.5          28.2                6.9 +/-    1.28      12.5 +/-    1.28  0.160 / 0.170
G14     334.9          70.5                8.0 +/-    0.40       8.4 +/-    0.40  0.120 / 0.160
G18     109.8          22.4                9.5 +/-    1.15      19.7 +/-    1.15  0.110 / 0.200
G22     305.2          17.6                8.1 +/-    2.28      19.0 +/-    2.28  0.180 / 0.180
G25     88.8           12.8                9.2 +/-    1.59      24.2 +/-    1.59  0.140 / 0.260
G31     175.2          51.9               11.0 +/-    0.74      13.5 +/-    0.74  0.390 / 0.340
G32     19.6           61.8                8.4 +/-    0.92       9.4 +/-    0.92  0.040 / 0.040