PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/17-00:42:40
G10     250.2          26.5               16.9 +/-    1.12      31.9 +/-    1.12  0.060 / 0.050
G13     53.9           30.1                9.7 +/-    0.91      17.0 +/-    0.91  0.040 / 0.050
G15     91.1           58.7               12.4 +/-    0.80      14.3 +/-    0.80  0.060 / 0.150
G16     294.7          15.9               11.0 +/-    2.22      26.7 +/-    2.22  0.060 / 0.170
G20     260.6          36.8               11.3 +/-    0.68      17.4 +/-    0.68  0.180 / 0.760
G21     332.0          59.3               11.4 +/-    0.68      13.0 +/-    0.68  0.170 / 0.720
G26     266.7          15.9               15.8 +/-    2.96      38.5 +/-    2.96  0.030 / 0.060
G29     165.2          51.5               13.2 +/-    0.80      16.4 +/-    0.80  0.040 / 0.050