PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-16:28:00
G01     47.5           23.4                7.1 +/-    1.54      14.3 +/-    1.54  0.040 / 0.050
G06     176.9          26.8               11.0 +/-    2.57      20.6 +/-    2.57  0.040 / 0.050
G11     44.0           13.2                6.8 +/-    1.46      17.5 +/-    1.46  0.140 / 0.260
G13     246.9          29.7                9.2 +/-    1.19      16.3 +/-    1.19  0.100 / 0.220
G15     280.9          15.3                7.4 +/-    2.61      18.2 +/-    2.61  0.030 / 0.030
G17     314.6          78.1                9.5 +/-    0.44       9.6 +/-    0.44  0.020 / 0.020
G19     250.6          63.0                9.9 +/-    0.81      11.0 +/-    0.81  0.110 / 0.160
G28     48.0           55.5                8.8 +/-    0.33      10.4 +/-    0.33  0.090 / 0.150
G30     150.2          36.9               10.0 +/-    0.83      15.3 +/-    0.83  0.100 / 0.150