PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/07-14:12:50
G03     213.6          59.6                8.9 +/-    1.01      10.1 +/-    1.01  0.090 / 0.480
G07     254.9          13.1                7.3 +/-    2.66      19.0 +/-    2.66  0.080 / 0.420
G09     309.0          25.8                6.4 +/-    1.54      12.3 +/-    1.54  0.110 / 0.370
G14     106.5          11.4                6.3 +/-    2.76      17.2 +/-    2.76  0.100 / 0.250
G16     99.0           63.8                8.8 +/-    1.12       9.7 +/-    1.12  0.030 / 0.050
G22     185.1          40.9                9.0 +/-    1.96      12.9 +/-    1.96  0.040 / 0.060
G23     333.9          61.9                8.0 +/-    0.62       9.0 +/-    0.62  0.050 / 0.060
G26     54.7           43.5                7.5 +/-    0.96      10.4 +/-    0.96  0.040 / 0.060
G31     58.5           10.3                5.3 +/-    3.36      14.7 +/-    3.36  0.030 / 0.040