PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/30-15:58:00
G03     205.2          55.2                8.5 +/-    0.67      10.1 +/-    0.67  0.210 / 0.220
G07     259.4          20.7                8.8 +/-    4.49      19.1 +/-    4.49  0.090 / 0.200
G09     310.4          28.0                4.8 +/-    1.49       8.8 +/-    1.49  0.240 / 0.290
G16     105.2          65.7                6.8 +/-    0.95       7.3 +/-    0.95  0.240 / 0.340
G22     184.9          37.5                7.3 +/-    0.91      11.1 +/-    0.91  0.050 / 0.040
G23     330.2          60.2                6.5 +/-    0.64       7.4 +/-    0.64  0.060 / 0.050
G26     55.3           45.7                5.7 +/-    0.97       7.6 +/-    0.97  0.070 / 0.110
G27     135.3          10.4               -2.1 +/-   31.81      -5.8 +/-   31.81  0.080 / 0.130
G31     59.5           10.8                6.8 +/-    2.21      18.7 +/-    2.21  0.070 / 0.070