PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/12-03:27:50
G01     286.1          40.9                6.9 +/-    1.27       9.9 +/-    1.27  0.070 / 0.070
G03     312.7          17.7                5.2 +/-    1.27      12.2 +/-    1.27  0.050 / 0.080
G10     122.2          27.0                6.9 +/-    1.50      12.8 +/-    1.50  0.060 / 0.070
G11     259.5          25.8                9.0 +/-    1.82      17.4 +/-    1.82  0.070 / 0.080
G14     31.4           55.6                4.7 +/-    1.00       5.6 +/-    1.00  0.040 / 0.050
G22     314.1          41.0                6.7 +/-    1.95       9.6 +/-    1.95  0.040 / 0.050
G25     60.2           17.5                5.9 +/-    0.61      13.9 +/-    0.61  0.040 / 0.060
G26     157.1          14.4                7.0 +/-    1.89      17.8 +/-    1.89  0.040 / 0.050
G31     121.1          80.7                7.7 +/-    0.62       7.8 +/-    0.62  0.050 / 0.140
G32     52.2           41.9                5.5 +/-    1.12       7.7 +/-    1.12  0.050 / 0.140