PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/14-03:58:10
G10     247.6          25.4               10.1 +/-    1.56      19.7 +/-    1.56  0.040 / 0.060
G13     56.5           30.9                9.8 +/-    0.94      16.8 +/-    0.94  0.040 / 0.050
G15     91.4           57.3                9.4 +/-    1.04      10.9 +/-    1.04  0.100 / 0.150
G16     302.1          14.4                7.4 +/-    2.04      18.6 +/-    2.04  0.090 / 0.120
G20     265.5          48.6               10.9 +/-    1.73      14.0 +/-    1.73  0.090 / 0.300
G21     331.3          58.3                9.0 +/-    0.62      10.4 +/-    0.62  0.100 / 0.320
G26     273.6          16.5               11.4 +/-    2.74      27.2 +/-    2.74  0.080 / 0.160
G29     160.7          50.8               11.1 +/-    1.03      13.9 +/-    1.03  0.070 / 0.150