PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-15:57:40
G10     246.9          24.1                9.2 +/-    1.53      18.3 +/-    1.53  0.050 / 0.060
G13     57.6           31.8                9.3 +/-    1.00      15.6 +/-    1.00  0.050 / 0.060
G15     99.7           58.7               10.3 +/-    0.49      11.8 +/-    0.49  0.140 / 0.500
G16     300.8          15.2                4.4 +/-    2.44      10.9 +/-    2.44  0.190 / 0.610
G20     264.2          48.0                9.8 +/-    0.86      12.7 +/-    0.86  0.030 / 0.040
G21     331.5          58.6                7.4 +/-    0.66       8.5 +/-    0.66  0.030 / 0.050
G26     273.8          16.9                8.3 +/-    1.75      19.6 +/-    1.75  0.050 / 0.130
G29     162.3          54.2               10.2 +/-    0.74      12.2 +/-    0.74  0.060 / 0.140