PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/16-20:28:10
G10     250.2          26.7               10.3 +/-    1.11      19.4 +/-    1.11  0.050 / 0.050
G13     53.8           29.9                7.7 +/-    1.21      13.5 +/-    1.21  0.040 / 0.060
G15     97.2           60.1                9.9 +/-    0.31      11.2 +/-    0.31  0.080 / 0.170
G16     295.4          15.7                6.6 +/-    3.19      16.3 +/-    3.19  0.070 / 0.170
G20     269.2          50.5                7.7 +/-    0.64       9.6 +/-    0.64  0.150 / 0.570
G21     333.4          59.9                8.1 +/-    0.63       9.2 +/-    0.63  0.130 / 0.750
G26     268.0          15.7                9.3 +/-    2.79      22.8 +/-    2.79  0.030 / 0.040
G29     164.7          51.0                8.9 +/-    1.04      11.1 +/-    1.04  0.030 / 0.050