PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-07:42:40
G08     291.4          23.1                3.3 +/-    1.59       6.7 +/-    1.59  0.090 / 0.140
G10     14.6           62.8                2.5 +/-    0.65       2.7 +/-    0.65  0.090 / 0.140
G14     231.3          48.9                5.9 +/-    0.76       7.6 +/-    0.76  0.030 / 0.030
G18     317.7          13.1                1.6 +/-    1.32       4.1 +/-    1.32  0.040 / 0.030
G20     68.4           51.0                4.2 +/-    0.39       5.2 +/-    0.39  0.050 / 0.080
G21     147.5          37.3                5.1 +/-    0.97       7.7 +/-    0.97  0.050 / 0.100
G24     53.7           24.0                2.6 +/-    0.71       5.2 +/-    0.71  0.060 / 0.100
G27     253.8          31.0                5.7 +/-    0.98       9.7 +/-    0.98  0.050 / 0.080
G32     245.8          65.2                5.6 +/-    0.86       6.1 +/-    0.86  0.090 / 0.180