PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/14-14:43:10
G02     203.9          31.5                7.0 +/-    1.38      11.9 +/-    1.38  0.060 / 0.070
G06     157.8          68.7                8.2 +/-    0.53       8.8 +/-    0.53  0.080 / 0.090
G12     306.4          14.4                6.0 +/-    1.41      15.3 +/-    1.41  0.030 / 0.030
G17     31.4           52.7                7.1 +/-    1.37       8.7 +/-    1.37  0.030 / 0.030
G19     3.5            65.0                6.8 +/-    0.70       7.4 +/-    0.70  0.100 / 0.100
G24     299.0          37.0                6.8 +/-    3.47      10.4 +/-    3.47  0.080 / 0.070
G28     98.2           37.2                7.8 +/-    1.32      11.9 +/-    1.32  0.030 / 0.030