PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-08:27:50
G01     100.9          27.2                6.5 +/-    1.12      12.2 +/-    1.12  0.040 / 0.040
G07     113.5          53.4                6.3 +/-    0.46       7.6 +/-    0.46  0.030 / 0.030
G08     41.8           18.5                2.4 +/-    0.70       5.4 +/-    0.70  0.030 / 0.050
G11     84.7           44.5                5.0 +/-    0.90       6.8 +/-    0.90  0.020 / 0.050
G13     305.3          32.5                5.4 +/-    0.91       9.0 +/-    0.91  0.050 / 0.140
G17     207.1          40.3                8.7 +/-    2.12      12.6 +/-    2.12  0.060 / 0.130
G18     74.9           24.6                4.4 +/-    0.85       8.7 +/-    0.85  0.100 / 0.150
G19     209.1          18.8               -3.0 +/-    8.29      -6.8 +/-    8.29  0.110 / 0.150
G28     311.5          58.9                4.6 +/-    0.97       5.3 +/-    0.97  0.060 / 0.160
G30     33.0           80.0                5.7 +/-    0.47       5.8 +/-    0.47  0.090 / 0.160