PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/31-21:12:50
G01     89.9           31.5               11.9 +/-    1.40      20.2 +/-    1.40  0.060 / 0.060
G07     126.2          40.1               12.5 +/-    1.23      18.2 +/-    1.23  0.050 / 0.050
G11     67.0           39.3               11.8 +/-    1.97      17.3 +/-    1.97  0.050 / 0.040
G13     294.1          36.8                8.5 +/-    3.19      13.0 +/-    3.19  0.050 / 0.050
G15     314.9          10.3               -8.8 +/-    6.74     -24.3 +/-    6.74  0.070 / 0.160
G17     213.3          54.8               14.4 +/-    0.68      17.2 +/-    0.68  0.150 / 0.110
G18     61.3           22.6                9.9 +/-    1.96      20.5 +/-    1.96  0.090 / 0.090
G19     214.0          27.0               14.2 +/-    1.38      26.5 +/-    1.38  0.080 / 0.090
G28     340.0          61.6               11.2 +/-    0.78      12.5 +/-    0.78  0.030 / 0.020
G30     105.9          75.3               12.7 +/-    0.38      13.1 +/-    0.38  0.030 / 0.030