PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/02-11:43:10
G08     273.9          18.2                6.1 +/-    2.78      14.0 +/-    2.78  0.060 / 0.060
G10     57.4           59.3                5.4 +/-    0.81       6.2 +/-    0.81  0.050 / 0.050
G11     314.1          14.2                1.6 +/-    1.69       4.1 +/-    1.69  0.130 / 0.190
G14     259.7          62.3                6.1 +/-    0.93       6.8 +/-    0.93  0.070 / 0.200
G18     313.6          29.2                3.8 +/-    1.42       6.8 +/-    1.42  0.330 / 0.250
G21     154.1          16.4                4.5 +/-    3.42      10.8 +/-    3.42  0.130 / 0.260
G24     40.5           11.5                4.3 +/-    2.83      11.5 +/-    2.83  0.150 / 0.210
G27     232.5          16.8                5.5 +/-    1.75      13.0 +/-    1.75  0.220 / 0.280
G31     177.5          29.9                6.0 +/-    1.54      10.5 +/-    1.54  0.130 / 0.370
G32     338.1          74.7                5.6 +/-    0.36       5.8 +/-    0.36  0.090 / 0.370