PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/20-00:42:50
G01     256.7          37.9                8.8 +/-    1.41      13.3 +/-    1.41  0.040 / 0.050
G03     316.5          38.0                7.5 +/-    0.87      11.3 +/-    0.87  0.040 / 0.060
G11     239.9          14.4                9.8 +/-    2.99      24.7 +/-    2.99  0.060 / 0.100
G14     55.0           43.8                6.6 +/-    0.60       9.1 +/-    0.60  0.050 / 0.090
G18     222.5          30.6                9.3 +/-    0.58      16.1 +/-    0.58  0.050 / 0.090
G22     309.6          60.7                7.9 +/-    0.86       8.9 +/-    0.86  0.040 / 0.090
G25     41.1           10.3                4.0 +/-    2.92      11.0 +/-    2.92  0.110 / 0.290
G26     140.5          34.0                9.6 +/-    2.11      15.5 +/-    2.11  0.230 / 0.310
G31     43.0           64.1                6.8 +/-    0.39       7.5 +/-    0.39  0.150 / 0.330
G32     73.5           25.4                6.6 +/-    1.02      12.8 +/-    1.02  0.140 / 0.380