PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/08-09:12:40
G10     264.1          37.2                6.5 +/-    1.53      10.0 +/-    1.53  0.080 / 0.080
G13     43.1           19.9                3.9 +/-    1.16       8.5 +/-    1.16  0.060 / 0.080
G15     61.7           50.1                4.9 +/-    0.54       6.2 +/-    0.54  0.220 / 0.420
G16     287.3          12.3                5.7 +/-    1.74      15.1 +/-    1.74  0.200 / 0.410
G20     292.7          59.1                5.2 +/-    0.80       5.9 +/-    0.80  0.170 / 0.310
G21     7.7            71.5                4.9 +/-    0.87       5.2 +/-    0.87  0.130 / 0.380
G24     121.0          12.8                5.5 +/-    1.57      14.3 +/-    1.57  0.050 / 0.090
G27     320.7          14.7                1.7 +/-    4.72       4.4 +/-    4.72  0.060 / 0.110
G29     164.6          29.6                5.8 +/-    0.76      10.2 +/-    0.76  0.040 / 0.050