PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/14-04:28:00
G03     213.6          56.2               10.3 +/-    1.11      12.1 +/-    1.11  0.090 / 0.220
G07     259.8          18.4                8.3 +/-    2.34      18.9 +/-    2.34  0.080 / 0.260
G09     312.3          31.8                4.0 +/-    1.12       6.7 +/-    1.12  0.060 / 0.090
G16     98.3           66.8                7.6 +/-    0.37       8.2 +/-    0.37  0.040 / 0.090
G22     188.2          39.8                8.7 +/-    1.78      12.8 +/-    1.78  0.090 / 0.100
G23     330.8          60.9                4.3 +/-    0.75       4.9 +/-    0.75  0.090 / 0.090
G26     54.0           45.6                5.0 +/-    1.07       6.6 +/-    1.07  0.040 / 0.040
G27     130.6          13.1                6.6 +/-    2.09      17.2 +/-    2.09  0.040 / 0.050
G31     59.8           11.7                4.0 +/-    1.19      10.9 +/-    1.19  0.160 / 0.250