PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/14-07:27:40
G01     225.8          16.7                3.8 +/-    2.40       9.2 +/-    2.40  0.120 / 0.280
G03     290.0          65.7                8.5 +/-    3.17       9.2 +/-    3.17  0.120 / 0.260
G09     295.1          10.3              -14.2 +/-   16.07     -39.4 +/-   16.07  0.060 / 0.090
G14     87.9           22.4                1.1 +/-    1.51       2.3 +/-    1.51  0.070 / 0.110
G16     148.6          45.0                6.7 +/-    1.11       9.1 +/-    1.11  0.050 / 0.050
G22     213.9          70.6                5.0 +/-    0.64       5.3 +/-    0.64  0.040 / 0.040
G23     306.7          36.2                3.4 +/-    0.76       5.2 +/-    0.76  0.080 / 0.340
G26     100.1          54.8             -104.2 +/-   51.53    -124.4 +/-   51.53  0.090 / 0.280
G31     44.9           32.7                2.8 +/-    1.06       4.7 +/-    1.06  0.040 / 0.070