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                9.5 +/-    1.09       9.6 +/-    1.09  0.040 / 0.050
G05     168.5          22.2               15.8 +/-    1.76      33.0 +/-    1.76  0.040 / 0.040
G06     40.0           52.0                9.9 +/-    0.38      12.2 +/-    0.38  0.100 / 0.130
G12     321.0          58.3                9.9 +/-    1.42      11.4 +/-    1.42  0.100 / 0.150
G17     74.2           21.9                9.4 +/-    1.86      19.8 +/-    1.86  0.070 / 0.120
G19     62.1           36.1               10.9 +/-    0.85      17.0 +/-    0.85  0.040 / 0.140
G24     239.2          31.3               15.1 +/-    2.20      25.8 +/-    2.20  0.150 / 0.320
G25     317.5          16.6                8.6 +/-    3.36      20.7 +/-    3.36  0.090 / 0.260