PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-03:28:00
G08     306.7          19.7                9.7 +/-    1.57      21.4 +/-    1.57  0.060 / 0.070
G10     345.9          61.7                6.8 +/-    0.67       7.6 +/-    0.67  0.050 / 0.070
G14     220.7          35.6               11.0 +/-    2.08      17.3 +/-    2.08  0.060 / 0.100
G20     47.1           58.1                8.4 +/-    0.33       9.7 +/-    0.33  0.070 / 0.090
G21     139.3          52.2                9.7 +/-    0.68      11.9 +/-    0.68  0.040 / 0.040
G24     68.0           29.4                7.3 +/-    0.98      13.0 +/-    0.98  0.030 / 0.040
G27     268.9          36.5                9.8 +/-    1.04      15.2 +/-    1.04  0.060 / 0.110
G32     227.8          55.5               12.1 +/-    1.17      14.3 +/-    1.17  0.060 / 0.130