PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-00:12:30
G02     268.7          80.8               10.9 +/-    0.59      11.0 +/-    0.59  0.030 / 0.080
G05     168.5          22.2               16.6 +/-    4.39      34.6 +/-    4.39  0.030 / 0.040
G06     40.0           52.0               11.0 +/-    0.81      13.6 +/-    0.81  0.170 / 0.130
G12     321.0          58.3               10.9 +/-    0.63      12.5 +/-    0.63  0.120 / 0.160
G17     74.2           21.9                9.9 +/-    1.96      20.8 +/-    1.96  0.060 / 0.120
G19     62.1           36.1               10.1 +/-    0.71      15.7 +/-    0.71  0.090 / 0.140
G24     239.2          31.3               12.9 +/-    2.32      22.0 +/-    2.32  0.060 / 0.040
G25     317.5          16.6                7.6 +/-    1.93      18.3 +/-    1.93  0.050 / 0.050