PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/06-13:43:10
G03     246.3          70.1                8.2 +/-    0.68       8.6 +/-    0.68  0.100 / 0.310
G09     300.7          14.7                4.5 +/-    1.69      11.2 +/-    1.69  0.090 / 0.240
G14     94.6           20.9                7.6 +/-    0.82      16.3 +/-    0.82  0.050 / 0.070
G16     131.2          56.1               10.3 +/-    0.77      12.1 +/-    0.77  0.040 / 0.070
G22     191.1          56.7               10.2 +/-    1.49      11.9 +/-    1.49  0.050 / 0.050
G23     319.8          50.0                6.3 +/-    1.03       7.9 +/-    1.03  0.050 / 0.060
G26     73.8           52.1                7.3 +/-    0.39       8.9 +/-    0.39  0.040 / 0.070
G31     50.7           21.1                5.5 +/-    0.63      11.8 +/-    0.63  0.040 / 0.050