PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-10:28:00
G02     356.1          76.3                4.4 +/-    0.45       4.5 +/-    0.45  0.070 / 0.110
G05     166.5          32.8                5.8 +/-    0.73       9.6 +/-    0.73  0.070 / 0.090
G06     41.6           38.0                3.9 +/-    1.36       5.9 +/-    1.36  0.030 / 0.030
G12     306.3          76.4                6.6 +/-    0.50       6.8 +/-    0.50  0.030 / 0.030
G17     86.8           10.1                4.8 +/-   13.11      13.4 +/-   13.11  0.540 / 0.440
G19     77.0           24.1                6.6 +/-    1.82      13.2 +/-    1.82  0.130 / 0.280
G24     228.5          21.8                4.7 +/-    2.84       9.9 +/-    2.84  0.080 / 0.110
G25     316.6          29.9                4.2 +/-    1.78       7.3 +/-    1.78  0.070 / 0.120