PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-06:57:40
G08     295.8          21.9                6.2 +/-    1.10      13.1 +/-    1.10  0.060 / 0.120
G10     6.3            63.0                3.8 +/-    0.59       4.2 +/-    0.59  0.060 / 0.110
G14     229.2          41.7                8.1 +/-    1.65      11.5 +/-    1.65  0.080 / 0.090
G20     76.6           40.9                5.6 +/-    0.53       8.0 +/-    0.53  0.040 / 0.080
G21     146.4          41.3                7.3 +/-    1.01      10.4 +/-    1.01  0.090 / 0.130
G24     56.1           25.5                4.4 +/-    1.15       8.5 +/-    1.15  0.090 / 0.130
G27     254.4          31.8                8.8 +/-    1.02      15.0 +/-    1.02  0.030 / 0.040
G32     247.1          69.4                8.7 +/-    1.22       9.2 +/-    1.22  0.040 / 0.030