PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/22-22:28:10
G05     47.5           19.7                6.2 +/-    2.30      13.7 +/-    2.30  0.070 / 0.080
G10     233.8          11.2              -11.5 +/-   35.25     -31.3 +/-   35.25  0.060 / 0.070
G13     79.2           35.5               11.3 +/-    1.11      17.8 +/-    1.11  0.070 / 0.120
G15     128.8          50.2               10.9 +/-    0.68      13.7 +/-    0.68  0.080 / 0.100
G16     317.5          10.7               -3.9 +/-   16.82     -10.7 +/-   16.82  0.190 / 0.320
G20     245.2          33.9               10.7 +/-    1.47      17.3 +/-    1.47  0.240 / 0.350
G21     309.9          44.1               10.0 +/-    0.76      13.6 +/-    0.76  0.030 / 0.040
G25     201.7          14.5               12.4 +/-    2.25      31.2 +/-    2.25  0.030 / 0.050
G26     291.6          20.1                8.2 +/-    2.14      18.1 +/-    2.14  0.180 / 0.340
G29     148.1          75.8               10.1 +/-    0.76      10.4 +/-    0.76  0.160 / 0.310