PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-23:28:10
G05     51.8           13.1                7.8 +/-    0.91      20.3 +/-    0.91  0.160 / 0.320
G10     242.7          18.5               13.4 +/-    2.13      30.6 +/-    2.13  0.150 / 0.400
G13     65.4           35.7                8.0 +/-    0.86      12.6 +/-    0.86  0.090 / 0.200
G15     110.7          56.9               10.2 +/-    0.32      11.9 +/-    0.32  0.090 / 0.200
G16     307.4          13.7                8.2 +/-    2.11      20.9 +/-    2.11  0.100 / 0.170
G18     255.1          48.4               12.8 +/-    1.28      16.5 +/-    1.28  0.080 / 0.150
G20     36.6           56.3                8.8 +/-    0.79      10.4 +/-    0.79  0.030 / 0.040
G26     279.9          18.5                9.5 +/-    1.54      21.7 +/-    1.54  0.030 / 0.040
G29     160.3          58.7               12.5 +/-    0.91      14.4 +/-    0.91  0.050 / 0.050