PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/09-00:28:00
G02     202.7          36.1               14.4 +/-    1.17      22.4 +/-    1.17  0.070 / 0.310
G06     160.2          69.0               12.5 +/-    0.59      13.2 +/-    0.59  0.120 / 0.180
G12     307.5          14.8                8.3 +/-    2.64      20.6 +/-    2.64  0.100 / 0.150
G17     31.7           52.7               10.5 +/-    1.15      12.8 +/-    1.15  0.070 / 0.130
G19     359.9          65.5               10.1 +/-    0.56      11.0 +/-    0.56  0.030 / 0.030
G24     298.2          37.9               10.6 +/-    2.16      16.0 +/-    2.16  0.030 / 0.030
G28     102.8          30.8               11.2 +/-    1.14      19.3 +/-    1.14  0.080 / 0.110