PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-14:57:50
G02     204.0          32.4                8.9 +/-    2.10      14.9 +/-    2.10  0.060 / 0.110
G06     156.7          69.5                9.0 +/-    0.69       9.6 +/-    0.69  0.070 / 0.090
G12     306.8          14.9                7.0 +/-    3.18      17.5 +/-    3.18  0.110 / 0.110
G17     31.6           52.5                7.7 +/-    1.64       9.5 +/-    1.64  0.070 / 0.110
G19     5.0            64.5                7.9 +/-    0.66       8.7 +/-    0.66  0.040 / 0.040
G24     298.1          37.4                8.0 +/-    3.47      12.1 +/-    3.47  0.030 / 0.040
G28     99.1           36.7                8.9 +/-    0.91      13.7 +/-    0.91  0.040 / 0.040