PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/11-16:57:30
G10     257.6          32.6               12.1 +/-    2.58      20.1 +/-    2.58  0.040 / 0.040
G13     47.1           24.7                9.6 +/-    1.85      18.8 +/-    1.85  0.040 / 0.040
G15     75.1           56.7               10.6 +/-    0.56      12.4 +/-    0.56  0.090 / 0.310
G16     288.5          14.5                7.3 +/-    2.26      18.3 +/-    2.26  0.100 / 0.230
G20     281.4          55.6               11.3 +/-    1.95      13.4 +/-    1.95  0.100 / 0.190
G21     348.4          66.7               11.4 +/-    0.80      12.3 +/-    0.80  0.120 / 0.220
G26     262.1          12.2                7.3 +/-   22.02      19.5 +/-   22.02  0.050 / 0.030
G29     165.9          40.7               11.9 +/-    1.24      17.1 +/-    1.24  0.040 / 0.030