PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/24-07:58:00
G01     247.4          33.6                6.3 +/-    1.93      10.3 +/-    1.93  0.120 / 0.140
G03     315.3          44.2                2.7 +/-    0.96       3.7 +/-    0.96  0.090 / 0.140
G11     232.2          11.3                3.0 +/-    1.86       8.1 +/-    1.86  0.030 / 0.030
G14     64.7           37.5                3.3 +/-    1.60       5.0 +/-    1.60  0.040 / 0.030
G16     162.3          20.7                6.4 +/-    2.53      13.8 +/-    2.53  0.100 / 0.090
G22     299.6          70.0                3.0 +/-    0.80       3.1 +/-    0.80  0.080 / 0.110
G23     288.2          20.1                4.7 +/-    2.15      10.3 +/-    2.15  0.090 / 0.200
G26     134.8          39.9                6.1 +/-    0.40       8.9 +/-    0.40  0.120 / 0.220
G31     40.1           55.4                2.1 +/-    0.80       2.5 +/-    0.80  0.050 / 0.070
G32     79.5           21.7                3.4 +/-    1.53       7.2 +/-    1.53  0.050 / 0.090