PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-09:27:50
G01     99.7           27.7                5.9 +/-    1.98      10.9 +/-    1.98  0.060 / 0.090
G07     115.2          52.0                5.2 +/-    0.43       6.4 +/-    0.43  0.050 / 0.070
G08     41.8           18.2                2.8 +/-    0.76       6.4 +/-    0.76  0.030 / 0.040
G11     82.5           44.2                5.2 +/-    0.86       7.1 +/-    0.86  0.030 / 0.050
G13     304.2          33.1                3.7 +/-    0.93       6.1 +/-    0.93  0.040 / 0.070
G17     207.9          41.0                5.6 +/-    1.52       8.0 +/-    1.52  0.040 / 0.070
G18     73.6           24.7                4.7 +/-    0.70       9.3 +/-    0.70  0.060 / 0.140
G19     209.6          19.8               -0.9 +/-    8.21      -2.0 +/-    8.21  0.060 / 0.160
G28     314.3          59.3                4.6 +/-    1.19       5.3 +/-    1.19  0.180 / 0.260
G30     44.0           80.4                5.2 +/-    0.66       5.2 +/-    0.66  0.100 / 0.240