PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/04-16:28:10
G03     210.0          58.4               12.2 +/-    1.55      14.1 +/-    1.55  0.140 / 0.590
G07     255.2          13.4                9.6 +/-    1.76      24.8 +/-    1.76  0.110 / 0.460
G09     309.0          25.6                9.0 +/-    1.48      17.4 +/-    1.48  0.030 / 0.070
G14     107.2          10.0                9.8 +/-    4.69      27.5 +/-    4.69  0.030 / 0.070
G16     99.6           64.1               10.0 +/-    0.44      11.0 +/-    0.44  0.040 / 0.060
G22     185.7          41.2               11.1 +/-    1.66      15.8 +/-    1.66  0.050 / 0.060
G23     332.4          61.1               10.1 +/-    0.60      11.4 +/-    0.60  0.040 / 0.050
G26     54.6           43.6                9.6 +/-    0.98      13.2 +/-    0.98  0.040 / 0.050
G31     58.6           10.4                8.8 +/-    2.53      24.4 +/-    2.53  0.060 / 0.070