PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/28-00:43:10
G02     247.7          78.1               10.2 +/-    0.63      10.4 +/-    0.63  0.050 / 0.050
G05     170.2          18.3               17.6 +/-    1.92      40.4 +/-    1.92  0.060 / 0.040
G06     40.4           56.8                9.0 +/-    0.55      10.5 +/-    0.55  0.160 / 0.200
G12     321.5          53.3               10.1 +/-    0.62      12.2 +/-    0.62  0.120 / 0.130
G17     70.2           25.0               11.1 +/-    0.88      21.6 +/-    0.88  0.210 / 0.260
G19     57.8           38.7               10.1 +/-    1.33      15.0 +/-    1.33  0.320 / 0.330
G24     243.8          34.0               13.9 +/-    2.57      22.5 +/-    2.57  0.050 / 0.040
G25     316.9          12.7                4.7 +/-   18.06      12.4 +/-   18.06  0.060 / 0.030