PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/17-06:42:50
G01     112.9          20.5                5.9 +/-    0.70      12.8 +/-    0.70  0.030 / 0.030
G07     92.9           63.0                5.3 +/-    0.58       5.8 +/-    0.58  0.030 / 0.040
G08     43.5           28.3                2.3 +/-    0.98       4.2 +/-    0.98  0.090 / 0.240
G09     174.8          19.9                6.3 +/-    1.27      13.8 +/-    1.27  0.100 / 0.240
G11     103.2          43.1                6.3 +/-    0.42       8.8 +/-    0.42  0.020 / 0.050
G13     314.6          24.4                3.5 +/-    2.60       6.9 +/-    2.60  0.030 / 0.040
G17     202.3          28.4                5.6 +/-    1.15      10.1 +/-    1.15  0.050 / 0.080
G28     289.5          54.2                6.9 +/-    0.46       8.3 +/-    0.46  0.050 / 0.070
G30     348.4          71.0                5.0 +/-    1.06       5.2 +/-    1.06  0.040 / 0.060