PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-07:58:00
G10     265.5          38.1                7.7 +/-    1.31      11.6 +/-    1.31  0.040 / 0.050
G13     42.5           18.9                4.1 +/-    2.76       9.3 +/-    2.76  0.030 / 0.030
G15     60.1           49.0                7.2 +/-    0.55       9.1 +/-    0.55  0.170 / 0.380
G16     285.8          12.0                7.1 +/-    1.79      18.9 +/-    1.79  0.320 / 0.340
G20     295.1          59.7                6.6 +/-    0.80       7.5 +/-    0.80  0.070 / 0.080
G21     8.0            71.9                7.0 +/-    0.68       7.4 +/-    0.68  0.060 / 0.060
G24     120.4          13.4                5.7 +/-    2.25      14.8 +/-    2.25  0.210 / 0.440
G27     320.2          15.9                4.8 +/-    1.83      11.7 +/-    1.83  0.210 / 0.410
G29     164.6          27.9                6.6 +/-    2.50      12.1 +/-    2.50  0.200 / 0.220