PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/14-06:12:40
G08     314.2          16.5                6.2 +/-    2.69      14.8 +/-    2.69  0.070 / 0.050
G10     324.6          59.0                5.6 +/-    1.08       6.5 +/-    1.08  0.060 / 0.090
G14     215.1          26.4                9.1 +/-    2.19      17.1 +/-    2.19  0.040 / 0.030
G15     46.1           13.5                2.2 +/-    2.52       5.6 +/-    2.52  0.030 / 0.040
G20     27.8           62.1                7.6 +/-    1.46       8.4 +/-    1.46  0.030 / 0.030
G21     128.6          61.0                8.6 +/-    0.53       9.7 +/-    0.53  0.030 / 0.030
G24     79.4           29.8                8.2 +/-    1.13      14.4 +/-    1.13  0.070 / 0.070
G27     283.3          37.5                5.9 +/-    0.98       9.0 +/-    0.98  0.050 / 0.060
G32     219.0          43.4               10.5 +/-    1.50      14.5 +/-    1.50  0.140 / 0.230