PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-13:43:10
G01     43.5           19.6                5.1 +/-    1.38      11.3 +/-    1.38  0.040 / 0.060
G06     175.0          33.1                8.3 +/-    1.14      13.7 +/-    1.14  0.040 / 0.070
G13     241.5          26.4                7.6 +/-    1.74      14.4 +/-    1.74  0.080 / 0.150
G15     276.6          13.8                4.8 +/-    0.67      12.3 +/-    0.67  0.090 / 0.170
G17     328.5          76.2                6.8 +/-    0.68       7.0 +/-    0.68  0.130 / 0.290
G19     262.9          67.4                6.6 +/-    0.73       7.1 +/-    0.73  0.120 / 0.250
G24     318.1          13.6                3.7 +/-    2.91       9.6 +/-    2.91  0.070 / 0.110
G28     55.6           54.1                4.7 +/-    0.63       5.6 +/-    0.63  0.090 / 0.130
G30     152.9          33.5                8.1 +/-    1.05      13.3 +/-    1.05  0.090 / 0.210