PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/06-20:27:50
G02     203.5          35.2               18.7 +/-    1.14      29.6 +/-    1.14  0.170 / 0.210
G06     155.3          70.6               17.6 +/-    0.32      18.5 +/-    0.32  0.210 / 0.230
G12     308.4          17.1               13.6 +/-    2.40      32.1 +/-    2.40  0.100 / 0.080
G17     34.6           50.5               15.2 +/-    0.90      19.0 +/-    0.90  0.070 / 0.100
G19     357.8          65.7               14.9 +/-    0.59      16.2 +/-    0.59  0.030 / 0.030
G24     296.7          38.8               14.6 +/-    2.75      21.7 +/-    2.75  0.030 / 0.020
G28     103.2          30.7               14.5 +/-    1.00      25.0 +/-    1.00  0.030 / 0.030