PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/13-07:12:40
G01     107.1          24.0                7.2 +/-    1.47      14.4 +/-    1.47  0.030 / 0.020
G07     104.3          58.7                6.7 +/-    0.60       7.7 +/-    0.60  0.030 / 0.020
G08     42.2           23.2                3.1 +/-    1.71       6.3 +/-    1.71  0.160 / 0.530
G09     173.9          14.3                4.0 +/-    2.56      10.2 +/-    2.56  0.160 / 0.420
G11     94.2           44.5                6.9 +/-    0.83       9.3 +/-    0.83  0.160 / 0.290
G13     310.5          28.7                2.8 +/-    0.92       5.0 +/-    0.92  0.170 / 0.350
G17     204.3          34.5                6.5 +/-    1.18      10.4 +/-    1.18  0.050 / 0.070
G19     207.4          13.2                2.4 +/-    2.61       6.1 +/-    2.61  0.050 / 0.070
G28     299.9          56.8                4.0 +/-    1.61       4.7 +/-    1.61  0.030 / 0.030
G30     3.5            76.1                5.8 +/-    0.61       5.9 +/-    0.61  0.030 / 0.040