PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/13-16:12:50
G01     244.2          31.5               10.7 +/-    1.77      18.2 +/-    1.77  0.030 / 0.040
G03     313.0          54.8               10.8 +/-    1.52      12.9 +/-    1.52  0.030 / 0.030
G14     65.4           38.8                9.4 +/-    0.96      14.0 +/-    0.96  0.040 / 0.080
G16     159.7          24.6               15.2 +/-    0.96      29.9 +/-    0.96  0.050 / 0.080
G22     287.8          74.0               12.2 +/-    0.59      12.7 +/-    0.59  0.040 / 0.040
G23     292.7          25.4                9.5 +/-    1.42      18.3 +/-    1.42  0.070 / 0.040
G26     128.1          43.6               14.7 +/-    0.68      20.2 +/-    0.68  0.090 / 0.190
G31     40.6           50.5                9.3 +/-    0.77      11.7 +/-    0.77  0.090 / 0.180
G32     83.3           17.9                9.5 +/-    2.23      22.1 +/-    2.23  0.130 / 0.120