PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-03:12:30
G05     46.9           21.6                5.2 +/-    0.56      11.1 +/-    0.56  0.070 / 0.090
G13     85.3           36.3                9.6 +/-    0.60      14.9 +/-    0.60  0.040 / 0.080
G15     134.4          47.1               12.3 +/-    0.85      16.1 +/-    0.85  0.060 / 0.170
G20     245.7          45.6               15.3 +/-    1.37      20.4 +/-    1.37  0.060 / 0.210
G21     306.1          42.0               11.1 +/-    0.86      15.6 +/-    0.86  0.070 / 0.120
G25     203.6          16.8               10.8 +/-    1.35      25.6 +/-    1.35  0.070 / 0.150
G26     293.4          21.0               10.3 +/-    2.31      22.0 +/-    2.31  0.040 / 0.050
G29     146.7          81.4               10.0 +/-    0.82      10.1 +/-    0.82  0.040 / 0.060