PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-09:43:00
G01     89.7           30.9                5.9 +/-    0.68      10.1 +/-    0.68  0.040 / 0.070
G07     124.6          44.6                8.1 +/-    2.14      11.0 +/-    2.14  0.040 / 0.050
G08     42.3           10.8                2.5 +/-    1.11       6.8 +/-    1.11  0.030 / 0.060
G11     70.7           42.0                6.0 +/-    0.91       8.4 +/-    0.91  0.030 / 0.060
G13     294.8          36.9                5.5 +/-    0.56       8.4 +/-    0.56  0.040 / 0.050
G17     212.9          50.0                8.3 +/-    1.33      10.5 +/-    1.33  0.040 / 0.060
G18     64.1           23.9                6.3 +/-    1.68      12.6 +/-    1.68  0.070 / 0.130
G19     213.0          28.0                3.6 +/-    2.24       6.6 +/-    2.24  0.070 / 0.130
G28     331.2          61.0                5.4 +/-    1.72       6.1 +/-    1.72  0.090 / 0.120
G30     96.7           78.4                4.6 +/-    0.59       4.7 +/-    0.59  0.080 / 0.150