PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/30-00:57:40
G05     47.3           20.7                7.4 +/-    1.23      16.1 +/-    1.23  0.050 / 0.100
G13     82.7           36.4               11.1 +/-    1.04      17.2 +/-    1.04  0.040 / 0.090
G15     134.0          48.2               12.9 +/-    1.30      16.6 +/-    1.30  0.070 / 0.160
G16     317.5          11.1                4.0 +/-   10.35      11.0 +/-   10.35  0.070 / 0.160
G20     242.3          28.1               13.4 +/-    0.84      24.5 +/-    0.84  0.070 / 0.150
G21     307.6          42.9                9.3 +/-    1.20      12.9 +/-    1.20  0.070 / 0.110
G25     202.1          15.1               14.3 +/-    2.94      35.6 +/-    2.94  0.150 / 0.510
G26     291.4          21.1                9.9 +/-    2.07      21.2 +/-    2.07  0.130 / 0.370
G29     150.2          79.6                9.8 +/-    0.47      10.0 +/-    0.47  0.150 / 0.290