PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/31-02:13:10
G05     48.9           15.8                6.6 +/-    0.80      16.0 +/-    0.80  0.140 / 0.320
G10     236.0          13.7                9.9 +/-    2.62      25.3 +/-    2.62  0.220 / 0.360
G13     74.8           35.5                9.2 +/-    0.64      14.5 +/-    0.64  0.060 / 0.080
G15     122.0          52.6               11.7 +/-    0.53      14.3 +/-    0.53  0.040 / 0.090
G16     315.9          11.2                5.1 +/-    3.34      13.8 +/-    3.34  0.050 / 0.110
G20     248.4          37.1               10.8 +/-    1.35      16.5 +/-    1.35  0.050 / 0.150
G21     314.0          47.3               -1.7 +/-    1.01      -2.3 +/-    1.01  0.180 / 0.410
G25     199.3          11.3                9.3 +/-    3.27      25.2 +/-    3.27  0.170 / 0.400
G26     289.0          19.7                8.4 +/-    1.75      18.7 +/-    1.75  0.040 / 0.060
G29     151.5          69.6               10.4 +/-    0.97      11.0 +/-    0.97  0.030 / 0.050