PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/27-03:12:50
G01     319.7          17.1               -3.9 +/-   30.49      -9.2 +/-   30.49  0.250 / 0.300
G08     263.2          14.7                9.0 +/-    1.58      22.5 +/-    1.58  0.250 / 0.300
G10     76.9           53.0                7.5 +/-    0.64       9.2 +/-    0.64  0.160 / 0.260
G11     305.7          21.3                7.6 +/-    2.61      16.1 +/-    2.61  0.170 / 0.250
G14     286.1          69.7                7.5 +/-    0.73       7.9 +/-    0.73  0.040 / 0.050
G18     306.7          39.3                6.5 +/-    2.33       9.5 +/-    2.33  0.040 / 0.050
G20     103.2          31.3                6.8 +/-    0.84      11.5 +/-    0.84  0.080 / 0.090
G27     226.2          10.9               10.8 +/-    1.86      29.5 +/-    1.86  0.090 / 0.100
G31     175.1          40.3                9.0 +/-    1.21      13.1 +/-    1.21  0.100 / 0.340
G32     359.3          70.0                7.1 +/-    0.82       7.5 +/-    0.82  0.110 / 0.370