PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/22-16:12:40
G10     257.7          32.6                7.5 +/-    2.12      12.5 +/-    2.12  0.150 / 0.260
G13     47.1           24.7                2.9 +/-    2.19       5.8 +/-    2.19  0.130 / 0.270
G15     74.4           56.3                8.4 +/-    0.35       9.9 +/-    0.35  0.040 / 0.030
G16     288.8          14.4                5.9 +/-    1.70      14.9 +/-    1.70  0.040 / 0.040
G20     281.5          55.7                8.3 +/-    1.92       9.8 +/-    1.92  0.040 / 0.070
G21     349.5          66.9                7.8 +/-    0.65       8.4 +/-    0.65  0.040 / 0.060
G29     165.7          40.4               10.1 +/-    0.92      14.6 +/-    0.92  0.110 / 0.180