PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-04:28:00
G10     255.0          30.1               10.7 +/-    1.36      18.7 +/-    1.36  0.170 / 0.480
G13     49.4           27.0                5.8 +/-    0.99      10.9 +/-    0.99  0.210 / 0.450
G15     76.9           56.1                7.0 +/-    0.68       8.2 +/-    0.68  0.050 / 0.050
G16     289.8          15.1                6.5 +/-    2.80      16.2 +/-    2.80  0.050 / 0.060
G20     299.6          66.2                7.0 +/-    0.57       7.5 +/-    0.57  0.090 / 0.130
G21     339.6          63.4                7.0 +/-    0.39       7.7 +/-    0.39  0.080 / 0.110
G26     261.7          13.5                9.6 +/-    1.39      24.8 +/-    1.39  0.060 / 0.140
G29     166.4          44.9               10.0 +/-    0.87      13.4 +/-    0.87  0.070 / 0.180