PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-03:27:40
G08     306.7          19.7                6.8 +/-    1.53      15.1 +/-    1.53  0.090 / 0.090
G10     345.9          61.7                7.2 +/-    0.64       8.0 +/-    0.64  0.060 / 0.100
G14     220.7          35.6               10.8 +/-    1.25      16.9 +/-    1.25  0.030 / 0.030
G20     47.1           58.1                9.2 +/-    0.59      10.7 +/-    0.59  0.040 / 0.030
G21     139.3          52.2               10.4 +/-    0.43      12.7 +/-    0.43  0.040 / 0.060
G24     68.0           29.4                7.5 +/-    0.87      13.3 +/-    0.87  0.040 / 0.050
G27     268.9          36.5                9.6 +/-    1.92      14.9 +/-    1.92  0.110 / 0.110
G32     227.8          55.5                9.7 +/-    2.66      11.5 +/-    2.66  0.110 / 0.170