PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/26-13:58:00
G02     204.5          32.4                7.1 +/-    1.15      11.9 +/-    1.15  0.070 / 0.110
G06     155.1          70.3                7.0 +/-    0.69       7.4 +/-    0.69  0.060 / 0.090
G12     307.3          15.8                2.5 +/-    3.28       6.1 +/-    3.28  0.170 / 0.550
G17     33.4           51.2                4.1 +/-    0.48       5.1 +/-    0.48  0.140 / 0.400
G19     6.5            64.0                4.5 +/-    0.35       5.0 +/-    0.35  0.070 / 0.130
G24     297.6          37.6                6.1 +/-    1.18       9.3 +/-    1.18  0.110 / 0.120
G28     99.6           36.5                6.4 +/-    0.94       9.9 +/-    0.94  0.030 / 0.030