PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/29-01:57:40
G02     212.0          57.5                9.0 +/-    1.31      10.5 +/-    1.31  0.070 / 0.100
G06     75.1           78.4                6.7 +/-    0.46       6.9 +/-    0.46  0.070 / 0.110
G12     316.9          31.3                5.9 +/-    0.86      10.1 +/-    0.86  0.080 / 0.290
G17     51.5           38.2                3.5 +/-    0.94       5.3 +/-    0.94  0.080 / 0.280
G19     33.7           52.3                5.5 +/-    0.36       6.7 +/-    0.36  0.030 / 0.060
G24     272.0          42.2                6.2 +/-    0.71       8.8 +/-    0.71  0.030 / 0.060
G28     119.9          16.4                6.1 +/-    2.63      14.6 +/-    2.63  0.040 / 0.060