PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-18:58:00
G01     105.7          26.3               13.3 +/-    1.45      25.2 +/-    1.45  0.160 / 0.230
G07     108.8          57.6               14.1 +/-    0.40      16.3 +/-    0.40  0.260 / 0.110
G08     42.1           21.6                9.7 +/-    2.98      20.6 +/-    2.98  0.030 / 0.030
G09     174.8          12.6               17.1 +/-    2.52      45.1 +/-    2.52  0.030 / 0.040
G11     88.4           43.2               15.5 +/-    1.49      21.5 +/-    1.49  0.020 / 0.040
G13     308.6          29.3               12.1 +/-    1.12      21.4 +/-    1.12  0.030 / 0.040
G17     207.4          35.9               15.7 +/-    2.00      24.5 +/-    2.00  0.100 / 0.140
G18     79.3           24.6               13.8 +/-    1.64      27.2 +/-    1.64  0.090 / 0.120
G28     321.3          61.3               11.5 +/-    0.88      13.0 +/-    0.88  0.070 / 0.130
G30     36.4           78.8               14.3 +/-    1.16      14.6 +/-    1.16  0.080 / 0.130