PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/04-02:27:50
G08     268.7          17.0                9.1 +/-    1.82      21.6 +/-    1.82  0.150 / 0.210
G10     67.9           55.8                7.5 +/-    0.60       8.8 +/-    0.60  0.130 / 0.300
G11     310.2          18.2                6.1 +/-    2.79      14.0 +/-    2.79  0.030 / 0.040
G14     270.9          67.1                6.6 +/-    0.88       7.1 +/-    0.88  0.030 / 0.040
G18     310.8          34.9                4.9 +/-    1.79       7.8 +/-    1.79  0.100 / 0.220
G20     98.2           34.8                6.4 +/-    0.77      10.3 +/-    0.77  0.090 / 0.230
G21     155.8          13.6                8.9 +/-    2.28      22.9 +/-    2.28  0.200 / 0.450
G27     230.1          14.5               10.1 +/-    2.13      25.5 +/-    2.13  0.160 / 0.390
G31     176.4          34.4                9.8 +/-    1.70      15.8 +/-    1.70  0.040 / 0.060
G32     345.0          73.2                7.5 +/-    0.44       7.8 +/-    0.44  0.040 / 0.070