PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-21:28:10
G01     40.3           15.1               12.1 +/-    1.86      30.0 +/-    1.86  0.200 / 0.250
G06     173.9          41.8               17.9 +/-    1.13      25.3 +/-    1.13  0.140 / 0.240
G13     236.3          20.8               16.6 +/-    3.58      35.9 +/-    3.58  0.110 / 0.150
G15     269.6          11.6               14.7 +/-    4.70      39.6 +/-    4.70  0.080 / 0.190
G17     355.5          71.0               13.7 +/-    0.41      14.4 +/-    0.41  0.210 / 0.210
G19     280.3          68.9               14.0 +/-    0.47      14.9 +/-    0.47  0.460 / 0.440
G24     315.9          20.9               10.3 +/-    2.90      22.2 +/-    2.90  0.050 / 0.060
G28     74.4           45.7               14.3 +/-    1.48      19.0 +/-    1.48  0.040 / 0.060
G30     154.8          24.7               18.0 +/-    3.47      35.5 +/-    3.47  0.090 / 0.280