PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-04:12:30
G10     246.7          24.6                9.7 +/-    1.36      19.2 +/-    1.36  0.100 / 0.170
G13     57.6           31.4                7.0 +/-    1.00      11.9 +/-    1.00  0.100 / 0.170
G15     93.6           57.3                8.0 +/-    0.96       9.3 +/-    0.96  0.040 / 0.050
G20     264.2          47.9                9.6 +/-    0.78      12.5 +/-    0.78  0.040 / 0.050
G21     330.2          57.6                6.4 +/-    0.82       7.4 +/-    0.82  0.080 / 0.150
G26     274.7          16.8                9.6 +/-    2.41      22.7 +/-    2.41  0.070 / 0.130
G29     160.2          51.9                9.7 +/-    0.94      12.0 +/-    0.94  0.030 / 0.040