PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-12:12:50
G02     235.7          73.3                6.2 +/-    0.66       6.5 +/-    0.66  0.180 / 0.500
G05     175.0          11.7                2.5 +/-   11.69       6.8 +/-   11.69  0.190 / 0.530
G06     41.3           59.9                6.2 +/-    0.50       7.0 +/-    0.50  0.060 / 0.050
G12     321.6          51.1                4.2 +/-    0.64       5.3 +/-    0.64  0.050 / 0.060
G17     67.7           24.6                5.6 +/-    0.84      11.1 +/-    0.84  0.260 / 0.570
G19     55.5           38.4                4.3 +/-    1.29       6.4 +/-    1.29  0.290 / 0.420
G24     249.9          36.0                6.3 +/-    2.47       9.8 +/-    2.47  0.040 / 0.050
G28     129.4          9.8                 6.2 +/-    8.52      17.3 +/-    8.52  0.030 / 0.040