PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/10-08:57:50
G01     58.4           29.3                3.1 +/-    0.87       5.5 +/-    0.87  0.030 / 0.050
G06     178.8          15.4                4.5 +/-    2.28      11.1 +/-    2.28  0.030 / 0.040
G07     141.8          21.2                6.1 +/-    1.32      13.1 +/-    1.32  0.020 / 0.070
G11     48.7           26.0                4.3 +/-    1.72       8.2 +/-    1.72  0.030 / 0.030
G13     260.9          36.2                6.5 +/-    0.70      10.1 +/-    0.70  0.060 / 0.100
G15     293.2          16.5                2.7 +/-    2.79       6.5 +/-    2.79  0.050 / 0.130
G17     254.5          75.6                6.6 +/-    0.44       6.8 +/-    0.44  0.060 / 0.120
G19     231.9          53.0                7.3 +/-    1.31       8.8 +/-    1.31  0.050 / 0.120
G28     22.0           60.0                4.1 +/-    0.61       4.7 +/-    0.61  0.040 / 0.060
G30     144.5          54.9                7.5 +/-    0.74       8.9 +/-    0.74  0.040 / 0.060