PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-11:42:50
G02     240.7          76.6                8.6 +/-    0.44       8.8 +/-    0.44  0.150 / 0.160
G05     173.1          14.8                7.0 +/-    1.93      17.4 +/-    1.93  0.120 / 0.190
G06     40.3           63.1                5.7 +/-    0.61       6.3 +/-    0.61  0.110 / 0.070
G12     321.3          50.1                5.8 +/-    0.33       7.3 +/-    0.33  0.110 / 0.090
G17     71.7           21.1                4.3 +/-    0.71       9.2 +/-    0.71  0.070 / 0.130
G19     58.2           37.6                4.6 +/-    0.64       7.0 +/-    0.64  0.110 / 0.170
G24     247.5          35.3                8.1 +/-    1.89      12.8 +/-    1.89  0.030 / 0.040
G25     316.7          12.8                2.2 +/-    3.59       5.6 +/-    3.59  0.030 / 0.040