PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-06:27:50
G01     50.4           25.2                4.9 +/-    1.99       9.6 +/-    1.99  0.040 / 0.050
G06     177.1          22.8                7.6 +/-    1.69      15.7 +/-    1.69  0.050 / 0.050
G07     145.1          14.7                8.7 +/-    3.16      21.7 +/-    3.16  0.140 / 0.270
G11     46.0           20.6                3.7 +/-    3.18       8.0 +/-    3.18  0.180 / 0.270
G13     251.4          32.6                5.6 +/-    1.97       9.4 +/-    1.97  0.040 / 0.050
G15     283.5          16.5                6.1 +/-    3.33      14.6 +/-    3.33  0.060 / 0.060
G17     301.2          79.6                1.3 +/-    0.49       1.3 +/-    0.49  0.030 / 0.020
G19     242.8          60.4                7.5 +/-    0.97       8.5 +/-    0.97  0.020 / 0.020
G28     35.4           58.5                6.0 +/-    2.22       6.9 +/-    2.22  0.040 / 0.040
G30     149.8          47.6                9.1 +/-    0.54      11.8 +/-    0.54  0.050 / 0.040