PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/19-16:28:00
G02     306.6          80.1                8.8 +/-    0.49       8.9 +/-    0.49  0.040 / 0.060
G05     166.9          28.8               11.0 +/-    1.45      19.7 +/-    1.45  0.050 / 0.050
G06     40.5           43.2                8.0 +/-    0.76      11.1 +/-    0.76  0.030 / 0.040
G12     316.7          66.6                7.4 +/-    1.31       8.0 +/-    1.31  0.030 / 0.040
G17     80.8           16.5                7.8 +/-    1.57      18.8 +/-    1.57  0.070 / 0.110
G19     71.7           28.0                7.4 +/-    0.75      13.5 +/-    0.75  0.060 / 0.110
G24     232.5          25.5               11.7 +/-    0.95      22.5 +/-    0.95  0.080 / 0.170
G25     317.4          24.1                8.8 +/-    4.06      17.6 +/-    4.06  0.080 / 0.140