PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-05:42:50
G08     321.0          10.4              -15.2 +/-   25.46     -42.1 +/-   25.46  0.150 / 0.510
G10     307.7          54.8                5.3 +/-    1.27       6.3 +/-    1.27  0.160 / 0.590
G14     212.9          14.1                6.9 +/-    3.84      17.6 +/-    3.84  0.040 / 0.040
G15     45.6           22.6                3.4 +/-    0.92       7.0 +/-    0.92  0.030 / 0.040
G20     35.2           59.1                4.7 +/-    0.55       5.4 +/-    0.55  0.060 / 0.090
G21     113.8          69.9                7.1 +/-    0.97       7.5 +/-    0.97  0.060 / 0.070
G24     89.5           28.6                4.8 +/-    0.60       8.6 +/-    0.60  0.040 / 0.040
G27     292.3          36.7                7.0 +/-    1.77      10.8 +/-    1.77  0.030 / 0.040
G32     213.6          40.6                7.6 +/-    0.96      11.0 +/-    0.96  0.190 / 0.360