PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-06:28:10
G02     286.0          82.3                3.6 +/-    1.09       3.7 +/-    1.09  0.090 / 0.120
G05     168.2          23.4                4.0 +/-    1.51       8.2 +/-    1.51  0.070 / 0.130
G06     39.2           54.1                3.1 +/-    0.48       3.7 +/-    0.48  0.040 / 0.130
G12     320.3          58.0                3.4 +/-    1.27       3.9 +/-    1.27  0.040 / 0.140
G17     76.9           18.8                3.7 +/-    0.96       8.4 +/-    0.96  0.030 / 0.050
G19     65.0           33.6                3.0 +/-    0.67       4.8 +/-    0.67  0.030 / 0.040
G24     238.8          30.5                7.2 +/-    2.76      12.5 +/-    2.76  0.110 / 0.120
G25     317.7          18.2                3.4 +/-    1.26       7.9 +/-    1.26  0.100 / 0.110