PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/09-07:28:00
G01     107.7          23.7                5.1 +/-    0.86      10.3 +/-    0.86  0.030 / 0.030
G07     103.3          59.0                7.4 +/-    0.42       8.5 +/-    0.42  0.030 / 0.030
G08     42.4           23.9                2.4 +/-    1.32       4.8 +/-    1.32  0.060 / 0.090
G09     174.1          15.0                6.8 +/-    0.63      17.0 +/-    0.63  0.070 / 0.080
G11     95.0           44.4                7.0 +/-    0.55       9.5 +/-    0.55  0.040 / 0.040
G13     310.9          28.3                3.9 +/-    0.98       7.0 +/-    0.98  0.030 / 0.050
G17     204.2          33.7                7.5 +/-    2.42      12.2 +/-    2.42  0.070 / 0.190
G19     207.2          12.6                6.3 +/-    1.83      16.7 +/-    1.83  0.060 / 0.170
G28     299.0          56.6                4.6 +/-    1.01       5.4 +/-    1.01  0.040 / 0.060
G30     2.2            75.7                5.7 +/-    0.58       5.8 +/-    0.58  0.040 / 0.070