PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-21:12:30
G02     203.3          35.6               15.2 +/-    1.38      23.9 +/-    1.38  0.220 / 0.250
G06     155.9          70.5               13.4 +/-    0.52      14.2 +/-    0.52  0.130 / 0.190
G12     308.3          16.7               11.1 +/-    3.66      26.5 +/-    3.66  0.100 / 0.070
G17     34.0           50.9               12.0 +/-    0.80      15.0 +/-    0.80  0.080 / 0.090
G19     358.5          65.6               11.0 +/-    0.52      12.0 +/-    0.52  0.030 / 0.020
G24     296.9          38.7               11.5 +/-    2.24      17.1 +/-    2.24  0.030 / 0.020
G28     103.3          30.6               12.3 +/-    0.97      21.2 +/-    0.97  0.030 / 0.030