PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-16:42:50
G02     238.4          73.0                6.5 +/-    0.69       6.8 +/-    0.69  0.180 / 0.340
G05     172.4          14.9                7.9 +/-    1.98      19.7 +/-    1.98  0.080 / 0.090
G06     40.7           58.6                7.8 +/-    0.55       9.0 +/-    0.55  0.080 / 0.100
G12     321.1          50.2                7.1 +/-    0.70       9.0 +/-    0.70  0.060 / 0.080
G17     67.7           26.0                7.6 +/-    4.02      14.4 +/-    4.02  0.070 / 0.080
G19     56.9           37.7                6.8 +/-    1.98      10.4 +/-    1.98  0.050 / 0.080
G24     247.0          35.1               10.0 +/-    2.48      15.9 +/-    2.48  0.050 / 0.080
G25     316.0          10.6              -15.8 +/-   21.73     -43.5 +/-   21.73  0.040 / 0.050