PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-14:42:50
G07     335.6          58.9                9.2 +/-    1.10      10.5 +/-    1.10  0.060 / 0.110
G08     97.1           52.7               11.2 +/-    0.30      13.7 +/-    0.30  0.050 / 0.100
G09     187.1          70.8                9.5 +/-    0.92      10.0 +/-    0.92  0.030 / 0.050
G11     144.7          14.5               11.4 +/-    3.26      28.7 +/-    3.26  0.040 / 0.050
G23     155.2          36.4               11.3 +/-    1.01      17.5 +/-    1.01  0.160 / 0.530
G27     53.0           30.5                9.3 +/-    0.63      16.1 +/-    0.63  0.130 / 0.420
G28     239.1          31.3               10.7 +/-    1.80      18.2 +/-    1.80  0.030 / 0.050
G30     303.8          36.6                9.7 +/-    0.64      15.0 +/-    0.64  0.030 / 0.050