PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/29-21:28:10
G02     199.8          19.5               23.0 +/-    2.85      51.3 +/-    2.85  0.150 / 0.410
G06     173.7          49.9               18.2 +/-    0.81      23.0 +/-    0.81  0.190 / 0.380
G13     227.5          14.5               23.5 +/-    1.86      59.1 +/-    1.86  0.080 / 0.110
G17     20.5           60.8               14.0 +/-    0.96      15.8 +/-    0.96  0.070 / 0.130
G19     317.7          71.5               14.4 +/-    0.57      15.1 +/-    0.57  0.040 / 0.070
G24     310.4          29.1               11.1 +/-    0.72      19.9 +/-    0.72  0.050 / 0.070
G28     82.5           44.3               12.6 +/-    0.94      17.1 +/-    0.94  0.040 / 0.050
G30     156.3          14.5               18.5 +/-    3.30      46.7 +/-    3.30  0.060 / 0.050