PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/09-20:57:50
G10     250.4          26.7               12.1 +/-    1.59      22.7 +/-    1.59  0.150 / 0.400
G13     53.6           29.8                9.5 +/-    2.46      16.7 +/-    2.46  0.120 / 0.340
G15     97.3           60.2               10.9 +/-    1.19      12.4 +/-    1.19  0.050 / 0.050
G16     295.2          15.7                8.7 +/-    1.51      21.3 +/-    1.51  0.040 / 0.040
G20     269.4          50.6               11.4 +/-    2.46      14.3 +/-    2.46  0.070 / 0.160
G21     333.4          59.9               10.0 +/-    0.61      11.4 +/-    0.61  0.070 / 0.200
G26     267.7          15.7               10.5 +/-    2.97      25.6 +/-    2.97  0.030 / 0.040
G29     164.8          50.9               12.5 +/-    0.51      15.6 +/-    0.51  0.030 / 0.040