PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-16:13:00
G01     220.9          12.2                8.7 +/-    6.27      23.2 +/-    6.27  0.190 / 0.220
G03     256.5          71.8                9.7 +/-    0.61      10.2 +/-    0.61  0.170 / 0.260
G09     297.9          11.4               -0.3 +/-   31.76      -0.9 +/-   31.76  0.040 / 0.030
G14     92.7           19.0                8.5 +/-    2.73      19.1 +/-    2.73  0.030 / 0.030
G16     147.6          48.7               10.8 +/-    0.68      13.9 +/-    0.68  0.160 / 0.230
G22     197.5          62.2                9.8 +/-    0.50      11.0 +/-    0.50  0.240 / 0.270
G23     311.9          41.5                8.4 +/-    1.14      11.9 +/-    1.14  0.110 / 0.230
G26     91.4           56.3                9.4 +/-    1.22      11.1 +/-    1.22  0.130 / 0.260
G31     47.6           28.4                6.7 +/-    1.23      12.1 +/-    1.23  0.040 / 0.060