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               10.9 +/-    1.20      18.2 +/-    1.20  0.050 / 0.180
G06     156.7          69.5                9.8 +/-    1.10      10.4 +/-    1.10  0.040 / 0.130
G12     306.8          14.9                5.8 +/-    2.93      14.6 +/-    2.93  0.180 / 0.310
G17     31.6           52.5                7.9 +/-    0.83       9.6 +/-    0.83  0.110 / 0.300
G19     5.0            64.5                7.6 +/-    0.48       8.3 +/-    0.48  0.060 / 0.100
G24     298.1          37.4                9.8 +/-    1.10      14.9 +/-    1.10  0.060 / 0.110
G28     99.1           36.7                8.2 +/-    1.21      12.7 +/-    1.21  0.060 / 0.110