PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/03-17:28:00
G01     101.7          28.2               16.7 +/-    1.83      30.3 +/-    1.83  0.080 / 0.160
G07     114.2          54.6               16.3 +/-    0.32      19.5 +/-    0.32  0.100 / 0.170
G08     41.8           17.3               10.8 +/-    0.77      25.4 +/-    0.77  0.030 / 0.050
G11     82.3           42.8               15.5 +/-    0.53      21.6 +/-    0.53  0.040 / 0.060
G13     305.2          31.6               14.2 +/-    0.97      24.1 +/-    0.97  0.040 / 0.080
G17     208.8          40.9               18.0 +/-    0.73      25.8 +/-    0.73  0.050 / 0.070
G18     74.9           24.8               14.2 +/-    0.94      27.9 +/-    0.94  0.030 / 0.030
G19     210.9          16.0                3.2 +/-   24.25       7.8 +/-   24.25  0.030 / 0.040
G28     328.7          61.6               13.8 +/-    1.07      15.5 +/-    1.07  0.030 / 0.070
G30     53.5           79.7               15.7 +/-    0.75      16.0 +/-    0.75  0.040 / 0.080