PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/02-17:43:00
G03     212.7          60.3               11.5 +/-    0.76      13.1 +/-    0.76  0.040 / 0.050
G07     255.7          17.1               11.8 +/-    1.37      28.0 +/-    1.37  0.040 / 0.050
G09     308.4          25.1                8.2 +/-    1.80      16.0 +/-    1.80  0.070 / 0.070
G16     117.0          64.1               12.2 +/-    0.61      13.4 +/-    0.61  0.060 / 0.080
G22     187.8          43.3               13.6 +/-    1.89      18.8 +/-    1.89  0.040 / 0.050
G23     325.7          55.8               10.4 +/-    0.96      12.3 +/-    0.96  0.050 / 0.070
G26     61.0           50.1               10.3 +/-    0.57      12.9 +/-    0.57  0.120 / 0.280
G31     56.7           14.9                8.2 +/-    1.59      20.6 +/-    1.59  0.110 / 0.360