PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/29-12:42:50
G02     221.6          64.2                6.5 +/-    0.41       7.1 +/-    0.41  0.060 / 0.080
G06     47.8           68.5                3.1 +/-    0.99       3.3 +/-    0.99  0.070 / 0.080
G12     319.9          42.0                4.6 +/-    1.74       6.4 +/-    1.74  0.030 / 0.030
G17     60.2           30.3                2.2 +/-    1.20       3.8 +/-    1.20  0.030 / 0.030
G19     46.6           44.1                2.2 +/-    1.13       3.0 +/-    1.13  0.050 / 0.070
G24     260.2          39.6                7.0 +/-    0.86      10.3 +/-    0.86  0.050 / 0.080
G28     124.0          16.4                5.1 +/-    2.02      12.2 +/-    2.02  0.050 / 0.060