PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/17-05:27:50
G01     277.4          41.4                4.3 +/-    0.79       6.1 +/-    0.79  0.060 / 0.100
G03     314.4          22.8                2.1 +/-    2.69       4.4 +/-    2.69  0.050 / 0.080
G10     126.6          22.1                5.2 +/-    2.22      11.0 +/-    2.22  0.090 / 0.170
G11     252.7          23.4                5.5 +/-    1.83      11.2 +/-    1.83  0.090 / 0.100
G14     39.4           51.7                2.7 +/-    0.74       3.3 +/-    0.74  0.040 / 0.060
G22     314.6          47.3                3.5 +/-    1.05       4.6 +/-    1.05  0.050 / 0.060
G25     53.2           15.9                1.9 +/-    0.84       4.7 +/-    0.84  0.130 / 0.310
G26     152.7          19.9                6.3 +/-    1.94      13.9 +/-    1.94  0.130 / 0.330
G31     73.7           78.9                4.5 +/-    0.39       4.6 +/-    0.39  0.040 / 0.060
G32     58.7           37.0                3.0 +/-    0.99       4.6 +/-    0.99  0.040 / 0.060