PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/13-10:58:10
G10     302.1          53.1                5.0 +/-    1.06       6.1 +/-    1.06  0.060 / 0.080
G14     211.7          12.9                4.6 +/-    2.38      12.0 +/-    2.38  0.060 / 0.060
G15     45.6           23.9                4.2 +/-    2.07       8.4 +/-    2.07  0.180 / 0.380
G20     70.4           23.9                5.6 +/-    0.96      11.2 +/-    0.96  0.090 / 0.340
G21     108.1          70.6                7.0 +/-    0.81       7.4 +/-    0.81  0.080 / 0.110
G24     94.3           27.8                5.0 +/-    2.09       9.1 +/-    2.09  0.100 / 0.110
G27     295.6          36.0                7.0 +/-    2.52      11.0 +/-    2.52  0.030 / 0.030
G32     212.1          36.5                7.2 +/-    1.70      11.1 +/-    1.70  0.040 / 0.040