PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-12:43:00
G03     220.9          63.2                7.9 +/-    1.36       8.7 +/-    1.36  0.190 / 0.410
G07     252.2          10.9               -4.9 +/-   13.27     -13.5 +/-   13.27  0.130 / 0.330
G09     307.2          23.4                7.0 +/-    2.33      14.2 +/-    2.33  0.120 / 0.350
G14     103.7          13.8                7.8 +/-    4.08      19.9 +/-    4.08  0.070 / 0.050
G16     107.7          62.8                8.3 +/-    0.46       9.2 +/-    0.46  0.050 / 0.070
G22     187.5          45.8                8.9 +/-    0.68      11.8 +/-    0.68  0.030 / 0.040
G23     328.6          57.9                6.7 +/-    0.38       7.7 +/-    0.38  0.030 / 0.040
G26     58.3           46.0                6.6 +/-    0.95       8.8 +/-    0.95  0.030 / 0.030
G31     56.5           12.7                6.3 +/-    1.23      16.5 +/-    1.23  0.040 / 0.030