PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/24-09:58:10
G01     60.8           30.2                3.9 +/-    0.89       6.7 +/-    0.89  0.080 / 0.130
G07     140.8          22.7                4.3 +/-    2.55       8.8 +/-    2.55  0.060 / 0.140
G11     49.5           27.2                1.4 +/-    2.26       2.7 +/-    2.26  0.030 / 0.030
G13     263.5          36.9                7.1 +/-    1.45      10.8 +/-    1.45  0.030 / 0.030
G15     295.9          16.1                5.8 +/-    1.46      14.1 +/-    1.46  0.120 / 0.130
G17     246.8          73.4                6.4 +/-    0.36       6.6 +/-    0.36  0.090 / 0.110
G18     42.9           13.8                1.8 +/-    2.82       4.5 +/-    2.82  0.140 / 0.320
G19     229.8          51.0                7.3 +/-    3.11       9.1 +/-    3.11  0.180 / 0.410
G28     18.7           60.3                3.0 +/-    1.41       3.4 +/-    1.41  0.050 / 0.030
G30     142.8          56.4                6.2 +/-    0.48       7.3 +/-    0.48  0.040 / 0.050