PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-22:42:30
G02     205.7          43.8               15.4 +/-    0.70      21.1 +/-    0.70  0.100 / 0.150
G06     137.1          76.8               13.4 +/-    0.57      13.7 +/-    0.57  0.120 / 0.170
G12     311.9          21.9               10.4 +/-    2.46      21.9 +/-    2.46  0.050 / 0.080
G17     40.3           46.4               10.9 +/-    1.64      14.4 +/-    1.64  0.060 / 0.090
G19     14.1           61.0               11.1 +/-    0.55      12.4 +/-    0.55  0.090 / 0.160
G24     288.2          41.2                5.6 +/-    3.52       8.0 +/-    3.52  0.090 / 0.180
G28     110.0          25.5               12.1 +/-    0.95      23.4 +/-    0.95  0.020 / 0.020