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               10.6 +/-    1.07      11.4 +/-    1.07  0.090 / 0.540
G06     43.7           64.7                9.0 +/-    0.73       9.9 +/-    0.73  0.080 / 0.520
G12     320.4          44.2               10.4 +/-    2.30      14.2 +/-    2.30  0.050 / 0.060
G17     62.4           29.9                7.8 +/-    1.20      13.7 +/-    1.20  0.050 / 0.060
G19     50.7           41.6                9.0 +/-    0.72      12.7 +/-    0.72  0.060 / 0.080
G24     254.1          38.1               11.5 +/-    1.06      17.2 +/-    1.06  0.050 / 0.100
G28     127.0          12.2                9.9 +/-    3.40      26.3 +/-    3.40  0.040 / 0.050