PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/13-15:42:50
G02     292.3          79.5                5.8 +/-    0.49       5.9 +/-    0.49  0.080 / 0.110
G05     168.6          27.2                9.1 +/-    1.19      16.8 +/-    1.19  0.080 / 0.110
G06     40.8           43.4                4.7 +/-    0.78       6.5 +/-    0.78  0.020 / 0.020
G12     316.6          70.2                5.6 +/-    0.62       5.9 +/-    0.62  0.030 / 0.020
G17     82.9           12.9                6.7 +/-    1.87      17.4 +/-    1.87  0.150 / 0.180
G19     67.7           34.0                6.4 +/-    2.03      10.4 +/-    2.03  0.110 / 0.170
G24     229.6          25.3                7.9 +/-    1.75      15.3 +/-    1.75  0.040 / 0.040
G25     317.5          26.6                5.9 +/-    1.38      11.1 +/-    1.38  0.060 / 0.050