PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-03:12:50
G01     285.3          41.0               -1.6 +/-    1.42      -2.3 +/-    1.42  0.080 / 0.100
G03     312.9          18.3                5.5 +/-    3.74      12.5 +/-    3.74  0.070 / 0.100
G10     122.7          26.5                4.7 +/-    1.20       8.8 +/-    1.20  0.050 / 0.070
G11     259.0          25.6                6.5 +/-    4.81      12.6 +/-    4.81  0.050 / 0.070
G14     32.1           55.3                5.3 +/-    1.17       6.3 +/-    1.17  0.060 / 0.070
G22     314.2          41.4                5.2 +/-    0.92       7.4 +/-    0.92  0.050 / 0.070
G25     59.8           17.5                5.7 +/-    1.28      13.3 +/-    1.28  0.050 / 0.040
G26     156.9          14.8                7.5 +/-    2.59      18.8 +/-    2.59  0.040 / 0.050
G31     118.3          80.9                6.9 +/-    0.69       7.0 +/-    0.69  0.020 / 0.020
G32     52.7           41.6                3.9 +/-    0.71       5.5 +/-    0.71  0.020 / 0.020