PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-05:57:40
G10     297.7          52.5                4.5 +/-    1.43       5.6 +/-    1.43  0.050 / 0.080
G14     209.7          11.6                0.2 +/-   16.33       0.6 +/-   16.33  0.060 / 0.100
G15     46.0           27.3                2.4 +/-    1.87       4.4 +/-    1.87  0.040 / 0.040
G20     351.6          65.3                2.1 +/-    0.75       2.3 +/-    0.75  0.050 / 0.040
G21     96.3           73.4                4.6 +/-    1.21       4.8 +/-    1.21  0.040 / 0.040
G24     97.6           26.2                5.6 +/-    0.84      10.6 +/-    0.84  0.040 / 0.040
G27     302.5          33.2                4.4 +/-    0.94       7.3 +/-    0.94  0.200 / 0.360
G32     210.8          27.6                6.0 +/-    1.50      11.0 +/-    1.50  0.100 / 0.390