PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-06:57:50
G01     76.2           32.3                7.0 +/-    0.90      11.7 +/-    0.90  0.040 / 0.030
G07     133.0          36.2                7.5 +/-    0.76      11.6 +/-    0.76  0.040 / 0.030
G11     60.0           37.7                5.8 +/-    1.58       8.8 +/-    1.58  0.080 / 0.330
G13     281.2          39.1                7.4 +/-    3.52      10.9 +/-    3.52  0.090 / 0.270
G15     306.6          14.5                1.2 +/-    4.56       3.0 +/-    4.56  0.050 / 0.080
G17     222.1          62.8                9.7 +/-    1.15      10.7 +/-    1.15  0.060 / 0.080
G19     218.7          38.4                7.9 +/-    1.31      11.7 +/-    1.31  0.040 / 0.040
G28     350.7          61.5                5.4 +/-    0.75       6.1 +/-    0.75  0.040 / 0.030
G30     126.8          71.4                8.9 +/-    0.71       9.4 +/-    0.71  0.060 / 0.050