PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/13-09:43:00
G02     205.5          38.5                5.9 +/-    1.08       8.8 +/-    1.08  0.070 / 0.080
G06     150.1          74.1                6.1 +/-    0.81       6.4 +/-    0.81  0.050 / 0.080
G12     310.3          19.9                4.7 +/-    1.23      10.3 +/-    1.23  0.120 / 0.260
G17     42.7           43.3                3.4 +/-    0.77       4.6 +/-    0.77  0.130 / 0.270
G19     4.8            63.7                2.2 +/-    0.55       2.4 +/-    0.55  0.030 / 0.030
G24     287.4          42.8                2.5 +/-    1.76       3.5 +/-    1.76  0.030 / 0.030
G28     106.5          29.2                5.1 +/-    1.33       9.0 +/-    1.33  0.040 / 0.040