PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-00:57:50
G10     247.9          23.4               11.7 +/-    2.04      23.8 +/-    2.04  0.100 / 0.190
G13     57.6           32.9                9.4 +/-    0.66      15.6 +/-    0.66  0.080 / 0.150
G15     98.0           58.7               13.5 +/-    0.45      15.5 +/-    0.45  0.030 / 0.050
G16     300.2          14.7                6.5 +/-    2.25      16.4 +/-    2.25  0.050 / 0.050
G18     263.3          52.6               10.7 +/-    0.58      13.1 +/-    0.58  0.030 / 0.050
G20     41.6           49.9                9.1 +/-    0.68      11.5 +/-    0.68  0.040 / 0.060
G21     329.2          57.9                9.4 +/-    0.65      10.9 +/-    0.65  0.140 / 0.320
G26     272.4          16.7               11.1 +/-    1.42      26.4 +/-    1.42  0.140 / 0.400
G29     163.3          51.5               11.5 +/-    1.40      14.3 +/-    1.40  0.060 / 0.070