PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/27-12:42:50
G08     277.5          22.3                5.6 +/-    0.94      11.7 +/-    0.94  0.080 / 0.150
G10     39.4           61.4                5.0 +/-    0.59       5.6 +/-    0.59  0.120 / 0.140
G14     245.5          59.2                7.1 +/-    0.98       8.1 +/-    0.98  0.040 / 0.020
G18     316.0          24.8                3.2 +/-    1.57       6.2 +/-    1.57  0.020 / 0.020
G20     83.2           43.9                5.1 +/-    1.20       7.0 +/-    1.20  0.040 / 0.040
G21     151.2          22.8                5.5 +/-    2.31      11.3 +/-    2.31  0.040 / 0.050
G24     44.3           16.1                3.9 +/-    4.03       9.4 +/-    4.03  0.030 / 0.030
G27     243.5          24.2                7.2 +/-    1.92      14.3 +/-    1.92  0.030 / 0.020
G31     182.6          16.4                3.7 +/-    0.83       8.8 +/-    0.83  0.180 / 0.160
G32     277.4          73.4                7.3 +/-    0.41       7.6 +/-    0.41  0.120 / 0.170