PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-14:28:00
G02     248.7          75.9                8.2 +/-    0.40       8.4 +/-    0.40  0.060 / 0.120
G05     172.0          17.4                7.6 +/-    2.26      17.9 +/-    2.26  0.070 / 0.110
G06     39.9           54.4                7.7 +/-    0.61       9.3 +/-    0.61  0.120 / 0.130
G12     321.3          55.3                7.2 +/-    0.81       8.6 +/-    0.81  0.110 / 0.110
G17     71.7           22.4                6.0 +/-    1.38      12.5 +/-    1.38  0.040 / 0.030
G19     60.8           35.0                5.6 +/-    0.91       8.8 +/-    0.91  0.040 / 0.040
G24     243.6          33.0                9.1 +/-    2.38      15.1 +/-    2.38  0.080 / 0.100
G25     316.7          13.7                4.3 +/-    2.74      11.1 +/-    2.74  0.080 / 0.090