PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/12-18:57:50
G05     47.5           20.7               10.0 +/-    2.31      21.6 +/-    2.31  0.090 / 0.080
G10     234.3          12.0                5.0 +/-   42.29      13.4 +/-   42.29  0.060 / 0.080
G13     78.0           35.4               14.0 +/-    1.39      22.0 +/-    1.39  0.070 / 0.120
G15     129.2          50.6               12.8 +/-    0.60      16.0 +/-    0.60  0.060 / 0.110
G16     315.9          11.7                4.9 +/-   21.51      13.1 +/-   21.51  0.040 / 0.050
G20     246.3          35.9               14.0 +/-    1.64      21.9 +/-    1.64  0.040 / 0.050
G21     310.6          44.4               11.3 +/-    0.85      15.3 +/-    0.85  0.260 / 0.600
G25     201.4          13.9               16.1 +/-    2.40      41.1 +/-    2.40  0.200 / 0.360
G26     290.2          20.3                9.7 +/-    0.89      21.3 +/-    0.89  0.640 / 0.240
G29     149.9          76.1               12.2 +/-    0.83      12.6 +/-    0.83  0.280 / 0.250