PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/08-17:57:30
G03     224.0          66.7               10.4 +/-    1.07      11.2 +/-    1.07  0.040 / 0.060
G09     303.8          18.0                9.3 +/-    1.34      21.4 +/-    1.34  0.040 / 0.060
G14     100.1          15.4                9.5 +/-    1.88      23.4 +/-    1.88  0.150 / 0.340
G16     124.4          60.0               12.2 +/-    0.55      13.8 +/-    0.55  0.150 / 0.350
G22     191.2          52.6               12.6 +/-    0.70      15.4 +/-    0.70  0.310 / 0.150
G23     322.1          51.9                9.8 +/-    0.53      12.1 +/-    0.53  0.250 / 0.190
G26     66.3           50.4               13.4 +/-    1.14      16.8 +/-    1.14  0.030 / 0.040
G31     53.2           17.7                7.3 +/-    3.56      17.1 +/-    3.56  0.030 / 0.040