PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/05-15:57:30
G03     232.0          68.5               10.5 +/-    0.82      11.1 +/-    0.82  0.100 / 0.230
G09     302.4          16.5                8.3 +/-    0.97      19.9 +/-    0.97  0.110 / 0.230
G14     97.8           17.8                8.0 +/-    1.16      18.5 +/-    1.16  0.060 / 0.050
G16     127.2          58.4               10.7 +/-    0.47      12.3 +/-    0.47  0.060 / 0.050
G22     190.4          54.0               10.3 +/-    0.72      12.3 +/-    0.72  0.070 / 0.050
G23     321.3          51.3               10.4 +/-    1.06      12.9 +/-    1.06  0.060 / 0.060
G26     69.2           51.1                8.4 +/-    0.49      10.4 +/-    0.49  0.030 / 0.040
G31     52.1           19.0                6.3 +/-    2.69      14.2 +/-    2.69  0.030 / 0.040