PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/09-00:12:30
G10     248.8          26.7               12.5 +/-    2.81      23.6 +/-    2.81  0.100 / 0.160
G13     54.9           30.0               10.0 +/-    1.67      17.6 +/-    1.67  0.100 / 0.190
G15     89.4           57.5               11.0 +/-    0.97      12.8 +/-    0.97  0.030 / 0.040
G16     298.8          15.3                7.6 +/-    1.91      18.7 +/-    1.91  0.040 / 0.040
G20     267.2          49.2               12.4 +/-    4.03      15.8 +/-    4.03  0.190 / 0.140
G21     331.2          58.2               10.2 +/-    0.68      11.8 +/-    0.68  0.080 / 0.140
G26     270.7          16.2               10.8 +/-    1.94      26.2 +/-    1.94  0.040 / 0.050
G29     162.2          51.4               13.7 +/-    0.81      17.0 +/-    0.81  0.030 / 0.040