PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-17:57:40
G03     187.3          16.5               10.6 +/-    2.87      25.5 +/-    2.87  0.220 / 0.160
G07     296.8          43.5               10.0 +/-    2.97      13.8 +/-    2.97  0.160 / 0.130
G08     137.8          30.7               12.9 +/-    0.59      22.2 +/-    0.59  0.120 / 0.180
G09     319.7          64.8                9.5 +/-    1.37      10.4 +/-    1.37  0.190 / 0.180
G16     43.1           41.2                8.3 +/-    0.88      11.9 +/-    0.88  0.040 / 0.040
G23     122.8          78.0                9.5 +/-    0.96       9.6 +/-    0.96  0.030 / 0.020
G26     44.2           12.6                6.7 +/-    2.73      17.6 +/-    2.73  0.060 / 0.080
G27     98.9           34.8               11.7 +/-    0.99      18.7 +/-    0.99  0.050 / 0.070
G30     276.1          14.9                8.7 +/-    2.91      21.8 +/-    2.91  0.140 / 0.300