PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/07-11:27:30
G10     305.2          54.0                3.5 +/-    0.69       4.2 +/-    0.69  0.050 / 0.080
G14     212.2          14.9                3.9 +/-    2.65       9.8 +/-    2.65  0.060 / 0.060
G15     45.5           22.1                2.6 +/-    2.19       5.4 +/-    2.19  0.190 / 0.460
G20     72.9           20.3                4.8 +/-    0.96      10.6 +/-    0.96  0.440 / 0.350
G21     112.8          68.9                6.5 +/-    0.82       6.9 +/-    0.82  0.030 / 0.030
G24     92.1           28.4                5.4 +/-    1.35       9.8 +/-    1.35  0.030 / 0.040
G27     293.2          36.6                8.6 +/-    2.04      13.2 +/-    2.04  0.080 / 0.200
G32     213.1          38.4                5.9 +/-    1.73       8.9 +/-    1.73  0.090 / 0.170