PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-11:12:40
G01     219.8          10.5                6.7 +/-    1.65      18.5 +/-    1.65  0.030 / 0.050
G03     256.2          70.2                5.2 +/-    0.76       5.5 +/-    0.76  0.040 / 0.060
G09     300.0          14.4                4.4 +/-    4.08      11.0 +/-    4.08  0.390 / 0.460
G14     93.4           21.5                3.9 +/-    1.15       8.4 +/-    1.15  0.210 / 0.370
G16     132.7          54.8                7.7 +/-    0.94       9.2 +/-    0.94  0.030 / 0.060
G22     195.8          60.0                4.8 +/-    0.55       5.4 +/-    0.55  0.040 / 0.060
G23     316.7          47.0                2.2 +/-    1.08       2.9 +/-    1.08  0.110 / 0.310
G26     76.3           52.5                4.8 +/-    0.85       5.8 +/-    0.85  0.100 / 0.300
G31     50.0           22.2                2.5 +/-    0.72       5.1 +/-    0.72  0.060 / 0.080