PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/04-04:12:50
G05     50.3           12.6                1.3 +/-    1.12       3.3 +/-    1.12  0.090 / 0.230
G10     238.5          16.5                7.0 +/-    1.69      16.8 +/-    1.69  0.090 / 0.230
G13     70.1           35.1                5.1 +/-    0.47       8.0 +/-    0.47  0.060 / 0.080
G15     115.4          54.6                6.5 +/-    0.45       7.8 +/-    0.45  0.050 / 0.060
G16     313.6          11.8                5.1 +/-    2.00      13.6 +/-    2.00  0.200 / 0.360
G20     252.0          40.1                6.2 +/-    1.72       8.9 +/-    1.72  0.150 / 0.430
G21     318.5          50.4                6.2 +/-    1.20       7.8 +/-    1.20  0.050 / 0.110
G26     286.0          19.1                5.0 +/-    2.32      11.3 +/-    2.32  0.050 / 0.140
G29     154.0          64.0                6.6 +/-    0.96       7.2 +/-    0.96  0.070 / 0.140