PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/07-05:28:10
G10     248.5          24.8                5.4 +/-    2.18      10.7 +/-    2.18  0.150 / 0.610
G13     56.1           31.5                4.2 +/-    0.62       7.1 +/-    0.62  0.150 / 0.720
G15     90.8           57.6                4.9 +/-    0.58       5.7 +/-    0.58  0.060 / 0.060
G16     297.5          15.6                3.7 +/-    2.65       9.1 +/-    2.65  0.050 / 0.050
G20     306.2          70.6                5.6 +/-    1.08       5.9 +/-    1.08  0.090 / 0.140
G21     330.5          58.3                3.5 +/-    0.93       4.0 +/-    0.93  0.070 / 0.140
G26     268.8          16.6                6.1 +/-    2.50      14.7 +/-    2.50  0.030 / 0.040
G29     164.4          53.1                6.2 +/-    1.10       7.6 +/-    1.10  0.040 / 0.060