PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-13:43:00
G01     49.2           24.6                5.2 +/-    1.38      10.3 +/-    1.38  0.040 / 0.060
G06     176.8          25.1                7.5 +/-    2.06      14.6 +/-    2.06  0.050 / 0.070
G11     44.6           16.0                4.4 +/-    2.00      10.7 +/-    2.00  0.060 / 0.100
G13     249.2          31.2                7.8 +/-    0.86      13.3 +/-    0.86  0.060 / 0.120
G15     284.0          15.5                4.3 +/-    1.81      10.6 +/-    1.81  0.080 / 0.190
G17     291.9          77.6                6.9 +/-    0.91       7.0 +/-    0.91  0.070 / 0.180
G19     246.4          61.5                7.2 +/-    0.76       8.0 +/-    0.76  0.130 / 0.390
G28     42.9           56.8                6.9 +/-    1.43       8.1 +/-    1.43  0.120 / 0.630
G30     149.7          41.4                7.6 +/-    1.11      10.8 +/-    1.11  0.120 / 0.240