PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/07-06:57:50
G01     60.8           30.0                5.1 +/-    1.47       9.0 +/-    1.47  0.040 / 0.040
G06     179.6          13.0               -1.5 +/-   22.75      -4.0 +/-   22.75  0.050 / 0.030
G07     140.7          24.2                5.1 +/-    1.49      10.2 +/-    1.49  0.130 / 0.210
G11     50.3           28.7                4.1 +/-    2.23       7.3 +/-    2.23  0.130 / 0.170
G13     263.9          37.1                8.1 +/-    1.82      12.4 +/-    1.82  0.040 / 0.060
G15     294.3          16.9                4.3 +/-    0.77      10.3 +/-    0.77  0.050 / 0.060
G17     247.9          74.9                7.8 +/-    0.70       8.0 +/-    0.70  0.040 / 0.030
G19     229.3          50.9                8.0 +/-    3.48      10.0 +/-    3.48  0.040 / 0.030
G28     16.2           60.6                7.0 +/-    2.92       7.9 +/-    2.92  0.060 / 0.110
G30     142.9          58.4                7.4 +/-    0.85       8.5 +/-    0.85  0.080 / 0.130