PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/10-10:27:30
G01     76.1           32.5                5.2 +/-    1.15       8.7 +/-    1.15  0.030 / 0.030
G07     133.5          34.3                5.9 +/-    0.99       9.5 +/-    0.99  0.030 / 0.030
G11     58.5           36.1                4.0 +/-    0.69       6.3 +/-    0.69  0.050 / 0.040
G13     280.6          39.0                8.2 +/-    1.39      12.1 +/-    1.39  0.040 / 0.050
G15     308.5          13.0                3.1 +/-    3.09       8.1 +/-    3.09  0.120 / 0.130
G17     222.9          61.1                6.6 +/-    1.60       7.5 +/-    1.60  0.090 / 0.100
G18     53.0           20.5                3.7 +/-    3.53       8.0 +/-    3.53  0.040 / 0.090
G19     219.1          38.6                6.8 +/-    1.44      10.2 +/-    1.44  0.040 / 0.070
G28     354.0          61.5                4.3 +/-    0.79       4.8 +/-    0.79  0.110 / 0.250
G30     128.3          68.9                5.6 +/-    0.83       6.0 +/-    0.83  0.110 / 0.210