PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-16:42:40
G02     239.3          74.2               15.6 +/-    0.70      16.2 +/-    0.70  0.030 / 0.060
G05     175.5          12.9               21.8 +/-    2.69      57.0 +/-    2.69  0.040 / 0.070
G06     40.8           58.9               13.3 +/-    0.55      15.3 +/-    0.55  0.080 / 0.130
G12     321.7          52.3               14.2 +/-    1.00      17.4 +/-    1.00  0.070 / 0.110
G17     72.8           19.9               12.7 +/-    0.79      28.1 +/-    0.79  0.120 / 0.340
G19     59.2           36.8               12.4 +/-    0.86      19.1 +/-    0.86  0.190 / 0.350
G24     247.1          35.1               17.3 +/-    0.95      27.5 +/-    0.95  0.030 / 0.050
G25     317.0          15.8               13.4 +/-    3.19      32.7 +/-    3.19  0.030 / 0.040