PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/24-02:57:40
G01     219.7          12.1                5.4 +/-    2.14      14.5 +/-    2.14  0.150 / 0.230
G03     270.9          69.9                5.6 +/-    1.03       5.9 +/-    1.03  0.190 / 0.310
G09     298.1          12.8                4.4 +/-    6.76      11.5 +/-    6.76  0.130 / 0.210
G14     90.7           22.5                4.4 +/-    2.17       9.1 +/-    2.17  0.110 / 0.230
G16     137.1          51.2                6.9 +/-    0.72       8.6 +/-    0.72  0.320 / 0.230
G22     208.8          65.3                6.1 +/-    0.69       6.7 +/-    0.69  0.150 / 0.170
G23     313.3          43.5                5.6 +/-    0.89       7.7 +/-    0.89  0.030 / 0.040
G26     84.2           53.9                5.1 +/-    0.75       6.2 +/-    0.75  0.040 / 0.040
G31     48.6           25.2                4.2 +/-    2.52       8.1 +/-    2.52  0.050 / 0.070