PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-10:12:30
G02     346.3          78.5                5.5 +/-    1.20       5.6 +/-    1.20  0.080 / 0.130
G05     167.6          29.9                7.4 +/-    2.18      12.9 +/-    2.18  0.070 / 0.120
G06     40.9           40.9                3.7 +/-    0.57       5.3 +/-    0.57  0.030 / 0.030
G12     312.9          73.3                5.3 +/-    1.25       5.5 +/-    1.25  0.020 / 0.040
G17     84.4           11.9                6.6 +/-    3.02      17.6 +/-    3.02  0.090 / 0.130
G19     74.2           26.0                6.6 +/-    2.04      12.6 +/-    2.04  0.100 / 0.120
G24     230.9          23.9                5.5 +/-    1.83      11.1 +/-    1.83  0.040 / 0.030
G25     317.0          27.1                0.6 +/-    1.90       1.1 +/-    1.90  0.040 / 0.030