PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-11:12:30
G02     200.8          20.5                6.3 +/-    1.51      13.8 +/-    1.51  0.160 / 0.220
G06     168.0          55.8                7.7 +/-    0.87       9.1 +/-    0.87  0.140 / 0.310
G13     225.0          12.6                3.2 +/-    6.22       8.4 +/-    6.22  0.080 / 0.140
G17     20.9           60.2                5.4 +/-    0.40       6.1 +/-    0.40  0.080 / 0.160
G19     332.9          71.1                5.7 +/-    0.66       6.0 +/-    0.66  0.120 / 0.630
G24     309.7          29.1                4.8 +/-    2.50       8.6 +/-    2.50  0.110 / 0.640
G28     83.6           45.1                5.7 +/-    0.65       7.7 +/-    0.65  0.040 / 0.050
G30     157.9          15.2                5.1 +/-    2.68      12.7 +/-    2.68  0.040 / 0.040