PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/12-18:43:10
G10     250.8          27.2               12.6 +/-    1.72      23.5 +/-    1.72  0.040 / 0.040
G13     53.2           29.5               10.2 +/-    1.24      18.1 +/-    1.24  0.040 / 0.050
G15     92.9           59.5               11.7 +/-    0.59      13.4 +/-    0.59  0.140 / 0.660
G16     295.3          15.5                7.8 +/-    2.94      19.1 +/-    2.94  0.130 / 0.640
G20     270.2          51.0               10.5 +/-    0.49      13.0 +/-    0.49  0.070 / 0.130
G21     335.3          60.8               11.3 +/-    0.82      12.7 +/-    0.82  0.070 / 0.130
G26     268.1          15.4               10.1 +/-    3.14      25.0 +/-    3.14  0.040 / 0.040
G29     164.5          49.8               12.9 +/-    1.40      16.3 +/-    1.40  0.030 / 0.040