PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/27-15:12:50
G02     230.8          68.6                8.6 +/-    1.41       9.2 +/-    1.41  0.060 / 0.090
G05     174.3          11.4                8.1 +/-   24.39      21.8 +/-   24.39  0.060 / 0.080
G06     42.2           62.0                9.2 +/-    0.55      10.3 +/-    0.55  0.040 / 0.070
G12     320.9          47.2                6.2 +/-    0.80       8.1 +/-    0.80  0.030 / 0.070
G17     65.1           27.4                6.9 +/-    1.12      12.8 +/-    1.12  0.180 / 0.450
G19     53.4           39.9                9.2 +/-    0.76      13.5 +/-    0.76  0.170 / 0.390
G24     251.4          36.9               10.7 +/-    0.58      16.4 +/-    0.58  0.050 / 0.040
G28     128.4          10.5               11.0 +/-    4.25      30.4 +/-    4.25  0.040 / 0.040