PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-16:12:30
G02     227.1          67.1                9.4 +/-    0.69      10.1 +/-    0.69  0.190 / 0.430
G06     43.7           64.7                7.5 +/-    0.53       8.2 +/-    0.53  0.260 / 0.390
G12     320.4          44.2                9.7 +/-    0.57      13.2 +/-    0.57  0.060 / 0.090
G17     62.4           29.9                7.9 +/-    1.85      13.8 +/-    1.85  0.060 / 0.090
G19     50.7           41.6                8.9 +/-    1.14      12.6 +/-    1.14  0.050 / 0.110
G24     254.1          38.1               11.5 +/-    2.37      17.2 +/-    2.37  0.040 / 0.080
G28     127.0          12.2                8.9 +/-    1.36      23.7 +/-    1.36  0.040 / 0.070