PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-21:12:30
G02     339.7          78.8                9.9 +/-    0.55      10.1 +/-    0.55  0.030 / 0.030
G05     163.8          34.0                9.9 +/-    1.43      16.1 +/-    1.43  0.020 / 0.030
G06     42.0           38.7                9.0 +/-    1.48      13.4 +/-    1.48  0.050 / 0.090
G12     309.7          73.9                9.1 +/-    0.40       9.4 +/-    0.40  0.050 / 0.110
G17     85.9           12.2               10.2 +/-    3.28      27.2 +/-    3.28  0.170 / 0.150
G19     73.8           29.2               10.6 +/-    1.33      18.8 +/-    1.33  0.160 / 0.160
G24     227.4          22.3               11.9 +/-    2.16      24.6 +/-    2.16  0.150 / 0.180
G25     317.2          28.9               10.3 +/-    1.03      18.5 +/-    1.03  0.150 / 0.170