PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-17:12:40
G08     316.0          15.3                7.1 +/-    2.25      17.5 +/-    2.25  0.080 / 0.080
G10     320.7          58.4                7.5 +/-    0.77       8.7 +/-    0.77  0.060 / 0.080
G14     214.4          18.6               11.1 +/-    1.67      25.2 +/-    1.67  0.120 / 0.410
G15     45.8           14.4                7.4 +/-    2.04      18.6 +/-    2.04  0.280 / 0.400
G20     27.5           61.8                8.0 +/-    2.35       9.0 +/-    2.35  0.230 / 0.340
G21     124.5          64.2                9.3 +/-    0.69      10.2 +/-    0.69  0.140 / 0.240
G24     85.1           30.3                8.2 +/-    0.96      14.3 +/-    0.96  0.030 / 0.040
G27     285.5          38.1                6.2 +/-    1.61       9.3 +/-    1.61  0.050 / 0.060
G32     216.2          46.0                9.3 +/-    0.81      12.3 +/-    0.81  0.040 / 0.030