PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/28-05:58:10
G01     273.8          41.3                4.7 +/-    1.18       6.7 +/-    1.18  0.050 / 0.060
G03     315.3          26.6                2.8 +/-    2.34       5.2 +/-    2.34  0.030 / 0.060
G10     128.4          18.5                5.8 +/-    0.97      13.2 +/-    0.97  0.050 / 0.070
G11     251.9          21.1               10.2 +/-    3.27      21.9 +/-    3.27  0.050 / 0.070
G14     38.4           52.8                5.8 +/-    0.34       7.1 +/-    0.34  0.110 / 0.210
G18     236.5          40.6                6.6 +/-    1.89       9.5 +/-    1.89  0.140 / 0.220
G22     314.4          50.0                5.3 +/-    1.78       6.7 +/-    1.78  0.150 / 0.340
G25     54.0           17.0                2.8 +/-    1.01       6.7 +/-    1.01  0.120 / 0.280
G31     57.9           73.3                5.0 +/-    1.51       5.2 +/-    1.51  0.050 / 0.080
G32     63.4           32.2                3.7 +/-    1.14       6.2 +/-    1.14  0.070 / 0.080