PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/15-01:28:00
G01     276.8          41.4                7.4 +/-    0.97      10.5 +/-    0.97  0.040 / 0.090
G03     314.6          23.8                6.1 +/-    2.06      12.2 +/-    2.06  0.040 / 0.060
G10     127.0          21.4                7.3 +/-    1.48      15.6 +/-    1.48  0.090 / 0.160
G11     253.5          22.9                6.8 +/-    1.62      13.9 +/-    1.62  0.080 / 0.200
G14     39.5           51.7                4.6 +/-    0.67       5.7 +/-    0.67  0.050 / 0.090
G22     314.4          46.6                4.9 +/-    1.59       6.4 +/-    1.59  0.070 / 0.090
G25     54.8           17.0                4.4 +/-    0.68      10.4 +/-    0.68  0.020 / 0.030
G26     154.8          19.1                9.6 +/-    1.37      21.6 +/-    1.37  0.020 / 0.030
G31     83.2           81.2                5.8 +/-    0.32       5.8 +/-    0.32  0.040 / 0.060
G32     58.2           37.9                4.2 +/-    0.49       6.4 +/-    0.49  0.040 / 0.060