PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-00:42:50
G01     83.5           33.0                5.6 +/-    1.42       9.3 +/-    1.42  0.050 / 0.050
G07     130.3          40.9                7.8 +/-    0.77      11.3 +/-    0.77  0.040 / 0.040
G11     65.4           39.3                4.8 +/-    1.49       7.0 +/-    1.49  0.070 / 0.090
G13     288.7          36.9                3.9 +/-    1.76       6.0 +/-    1.76  0.060 / 0.080
G15     310.7          12.8                5.0 +/-    1.85      13.2 +/-    1.85  0.050 / 0.040
G17     219.7          57.1                7.0 +/-    0.96       8.2 +/-    0.96  0.060 / 0.050
G19     217.5          32.5                7.2 +/-    1.38      11.9 +/-    1.38  0.050 / 0.080
G28     1.5            61.1                4.3 +/-    0.59       4.9 +/-    0.59  0.050 / 0.080
G30     121.7          67.4                7.1 +/-    0.46       7.7 +/-    0.46  0.050 / 0.060